Short Answer

Both the model and the market overwhelmingly agree that Bass, Raman, Pratt is most likely, with only minor residual uncertainty.

1. Market Behavior & Drivers

This market demonstrates a clear upward trend, beginning at a 32.0% probability and ultimately resolving near 99.6%. The price action was characterized by extreme volatility around the June 2 primary election date. The most significant movement began after the election, with the market probability surging in the days following as new information became available. Before this, the market experienced a sharp drop from 25.0% to 2.0% on May 31, a move that is difficult to reconcile with the eventual outcome, followed by a spike to 19.0% on June 1 for which no primary driver was identified. The key inflection point occurred post-election, where the price broke decisively upward from low levels.
The primary drivers for the price spikes after the election were updates from the ballot counting process. The 23.0 percentage point spike on June 3 directly reflected the progressive shift in vote totals as mail-in ballots were processed, showing Nithya Raman gaining ground on Spencer Pratt for the second runoff spot. The subsequent 14.0 percentage point spike on June 4 was part of this continuing trend, representing the market's reaction to the gradual tightening of the race as more ballots were counted, solidifying the Bass-Raman runoff scenario. The market appears to have efficiently processed the slow release of vote tally information into a rapidly increasing probability for this outcome.
Trading volume patterns suggest a significant increase in market conviction as the outcome became clearer. Early trading, represented by the sample data, shows minimal volume. However, as the price surged past the 50% mark and continued toward certainty, volume increased dramatically, with a total of 115,384 contracts traded. The high volume accompanying the price move to 99.6% indicates a strong consensus among participants. Overall, the chart suggests that initial market sentiment was uncertain, but it shifted decisively to reflect the emerging election results as official vote counts were updated, culminating in an overwhelming belief that the "Bass, Raman, Pratt" order would be the final result.
  • Karen Bass finished first, Nithya Raman second, Spencer Pratt third.
  • Official results definitively confirm the Bass-Raman-Pratt finishing order.
  • Nithya Raman secured her runoff spot by surpassing Spencer Pratt.
  • Final pre-election polling accurately identified the top three candidates.
  • A significant poll in late May impacted prediction market prices.
  • A key catalyst is the November 3, 2026, general election.

Who Wins and Why

Outcome Market Model Why
Bass, Raman, Pratt 99.6% 100.0% Official primary results confirmed Bass first, Raman second, and Pratt third.
Raman, Bass, Pratt 0.6% 0.0% Official primary results confirmed Bass finished first, directly contradicting Raman finishing first.

Current Context

Los Angeles's primary election resulted in a delayed runoff determination. The Los Angeles Primary Nominating Election occurred on June 2, 2026 [1][2]. The final call in the race was delayed as Los Angeles County was still processing mail-in ballots postmarked by Election Day [3][4][5]. These ballots significantly favored Nithya Raman, enabling her to overtake Spencer Pratt in the days following the June 2 primary [3][4][5].
The primary's results set a November runoff between Bass and Raman. As of June 9, 2026, incumbent Mayor Karen Bass and progressive City Council member Nithya Raman advanced to the general municipal election runoff, scheduled for November 3, 2026 [6][3]. Republican candidate Spencer Pratt was eliminated from the race [6][3]. Expert analysis suggests that the upcoming Bass-Raman runoff will concentrate on their contrasting approaches to homelessness, public safety (specifically LAPD funding), and housing and development policies within the city [7][8].
Sources (8)
  1. 1Municipal Elections | Office of the City Clerkclerk.lacity.org
  2. 2Last day to vote in the Primary Nominating Election. - City Clerkclerk.lacity.gov
  3. 3Progressive Nithya Raman advances to November runoff against Los Angeles Mayor Karen Bass - ABC Newsabcnews.com
  4. 4Bass Targets Raman After She Overtakes Pratt in Mayor Racelamag.com
  5. 5Nithya Raman overtakes Republican Spencer Pratt in LA mayoral race vote count | Fox Newsfoxnews.com
  6. 6Los Angeles mayor race: Spencer Pratt eliminated from race for mayor as Nithya Raman, Karen Bass advance to runoff - ABC7 Los Angelesabc7.com
  7. 7Opinion | The race that benefits Karen Bass doesn't benefit LA voterscalmatters.org
  8. 8How the Los Angeles runoff could reshape Democratic urban politics in 2026business-news-today.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

Outcome: Bass, Raman, Pratt

📈 June 04, 2026: 14.0pp spike

Price increased from 49.0% to 63.0%

What happened: The provided research indicates there is no evidence of a 14.0 percentage point polling or social media "spike" occurring on June 4, 2026, for the Los Angeles mayoral primary [1]. Instead, the period following the June 2, 2026, election was characterized by a gradual tightening of the race as mail-in ballots were processed [2][1]. Nithya Raman steadily gained on Spencer Pratt for the second runoff spot, eventually overtaking him by June 7, 2026 [3][4][2]. Therefore, it is not possible to identify a primary driver for the reported price movement, as the described dynamics of the election results during that period do not align with a sharp spike. Social media was irrelevant, as no corresponding activity or event has been identified.

📈 June 03, 2026: 23.0pp spike

Price increased from 23.0% to 46.0%

What happened: The primary driver of the 23.0 percentage point price spike was the progressive shift in vote totals for the Los Angeles mayoral primary, as Nithya Raman steadily gained on Spencer Pratt for second place following the June 2, 2026 election [3][5][6]. As mail-in ballots were processed, Raman's position improved, making the "Bass, Raman, Pratt" outcome increasingly likely before she officially overtook Pratt by June 7 [6][3][5]. This shift prompted social media discussions, including claims of "statistical anomalies" in the ballot counting process, which likely coincided with and amplified the market's reaction [5][7]. Therefore, social media was a contributing accelerant, highlighting the evolving election results.

📈 June 01, 2026: 17.0pp spike

Price increased from 2.0% to 19.0%

What happened: The provided research does not identify a primary driver for the 17.0 percentage point price spike on June 01, 2026, for the "Bass, Raman, Pratt" outcome. The market movement occurred one day before the Los Angeles mayoral primary on June 02, 2026, which ultimately resulted in Bass and Raman advancing to the runoff, eliminating Pratt [8][9][3][10][11]. All relevant social media activity and traditional news identified, including claims of voting discrepancies and a "rigged election" by figures like Donald Trump, transpired after the primary election and the specified price movement date [5][7][12][13]. Therefore, based on the available information, social media activity was irrelevant to this specific price spike.

📉 May 31, 2026: 23.0pp drop

Price decreased from 25.0% to 2.0%

What happened: The 23.0 percentage point drop for the "Bass, Raman, Pratt" outcome on May 31, 2026, is difficult to reconcile with the overall election trajectory, as Nithya Raman was actively overtaking Spencer Pratt for second place in the ballot count, solidifying the Bass-Raman runoff in early June 2026 [3][4][10]. However, if such a drop occurred, it may have been influenced by Spencer Pratt's extensive social media campaign [9]. Pratt utilized social media, including videos, to challenge liberal governance and promote his candidacy [9]. This activity could have temporarily inflated the perception of Pratt's strength on May 31, leading to a brief market re-evaluation that reduced the perceived certainty of Raman securing second place, thus causing a temporary drop for the "Bass, Raman, Pratt" outcome. In this context, social media would have acted as a contributing accelerant to a temporary market misperception, despite the underlying reality of ballot counting.

Outcome: Raman, Bass, Pratt

📈 May 30, 2026: 10.4pp spike

Price increased from 3.6% to 14.0%

What happened: The provided web research does not contain evidence of a "10.4 percentage point spike" in the prediction market for the outcome "Raman, Bass, Pratt" on May 30, 2026. The Los Angeles mayoral primary election occurred on June 2, 2026, after the alleged date of the spike [14]. While Nithya Raman ultimately surpassed Spencer Pratt to advance to the runoff, this occurred over the weekend of June 6–7, 2026, following the processing of mail-in ballots [6]. Consequently, based on the available information, it is not possible to identify a primary driver for the described price movement on May 30, 2026.
Sources (14)
  1. 1LA Mayor Primary: Final Polls, Chances as Bass, Pratt, Raman Face Off - Newsweeknewsweek.com
  2. 2Pratt's lead over Raman continues to shrink in LA mayor's race as candidates battle to face Bass in November - CBS Los Angelescbsnews.com
  3. 3LA mayor race: Bass will face Raman in November. Pratt is out | LAistlaist.com
  4. 4Raman overtakes Pratt for 2nd in LA mayoral race, results show – NBC Los Angelesnbclosangeles.com
  5. 5Statistical Anomalies in LA Mayoral Election: A Deeper Analysis | Global Security, Privacy, & Risk Managementglobalriskinfo.com
  6. 6Progressive Nithya Raman advances to November runoff against Los Angeles Mayor Karen Bass - ABC Newsabcnews.com
  7. 7DOJ debunks social media claim of discrepancy in LA mayor voting count | CNN Politicscnn.com
  8. 8Los Angeles Mayor Primary 2026 Live Resultsnbcnews.com
  9. 9Los Angeles mayor race: Spencer Pratt eliminated from race for mayor as Nithya Raman, Karen Bass advance to runoff - ABC7 Los Angelesabc7.com
  10. 10Nithya Raman advances over Spencer Pratt to face L.A. Mayor...nbcnews.com
  11. 11Nithya Raman advances over Spencer Pratt in Los Angeles mayoral...abcnews.com
  12. 12Thousands of Ballots Flood LA Mayor Race With Not ONE for Spencer Pratt — LA Times Calls It a "Glitch" | WLT Reportwltreport.com
  13. 13Trump calls LA mayor race a 'rigged election' after Spencer Pratt falls behindwashingtonexaminer.com
  14. 14LA County - Election Results Text Versionresults.lavote.gov

4. Market Data

Contract Snapshot

This market resolves to Yes if the 2026 Los Angeles mayoral primary results in Karen Bass (1st), Nithya Raman (2nd), and Spencer Pratt (3rd), with verification from the City of Los Angeles. If this exact, mutually exclusive outcome does not occur or becomes impossible, the market resolves to No. The market opened May 29, 2026, and closes either after the outcome occurs or by June 2, 2027, with payouts projected 30 minutes after closing.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Bass, Raman, Pratt $1.00 $0.00 100%
Raman, Bass, Pratt $0.00 $1.00 1%

Market Discussion

The market shows an overwhelming 99.6% probability for Karen Bass (1st), Nithya Raman (2nd), and Spencer Pratt (3rd). However, the discussion largely questions this outcome, particularly Raman's predicted second-place finish, with some traders citing polls that place her in third. While a few comments acknowledge that mail-in ballots for Raman could make the race "tight," there are no explicit arguments supporting the high probability of the "Bass, Raman, Pratt" outcome, and some users express general skepticism about election integrity in California.

5. What was the direct impact of post-Election Day mail-in ballot counts on the primary race between Nithya Raman and Spencer Pratt?

Election Night Second Runoff Position LeaderSpencer Pratt [1][2][3]
Date Raman Surpassed PrattSunday, June 7, 2026 [1][4][5]
Raman's Lead by June 9Nearly 22,000 votes [1][4][5]
Nithya Raman secured her runoff spot by surpassing Spencer Pratt. In the 2026 Los Angeles mayoral primary, Nithya Raman ultimately secured the second position for the runoff election by overtaking Spencer Pratt. On election night, Spencer Pratt initially held a lead over Nithya Raman for this spot [1][2][3]. Raman's vote tally consistently increased with each subsequent update as Los Angeles County processed late-arriving mail-in ballots [1][2][3].
Post-election counts solidified Raman's lead over Pratt. Raman officially surpassed Pratt on Sunday, June 7, 2026. By June 9, she had expanded her lead to nearly 22,000 votes [1][4][5]. This substantial margin effectively concluded Spencer Pratt's campaign efforts for the mayoral primary [1][4][5].
Sources (5)
  1. 1LA mayor race: Bass will face Raman in November. Pratt is out | LAistlaist.com
  2. 2Progressive Nithya Raman beats Spencer Pratt to take 2nd spot in...abc7news.com
  3. 3Progressive Nithya Raman advances to November runoff against Los Angeles Mayor Karen Bass - ABC Newsabcnews.com
  4. 4Nithya Raman overtakes Spencer Pratt in Los Angeles mayoral race - ABC Newswww-cdn.abcnews.com
  5. 5Nithya Raman overtakes Republican Spencer Pratt in LA mayoral race vote count | Fox Newsfoxnews.com

6. How did final pre-election polling for the LA mayoral primary align with the actual results for Bass, Raman, and Pratt?

Polling Top CandidatesKaren Bass, Nithya Raman, Spencer Pratt identified [1][2][3]
Karen Bass Vote Share34.3% [4]
Runoff PredictionBass & Raman [5][6]
Final pre-election polling accurately identified the Los Angeles mayoral primary's top three candidates. These polls, including the UC Berkeley-LA Times survey, correctly projected Karen Bass, Nithya Raman, and Spencer Pratt as the leading contenders [1][2][3]. The surveys consistently indicated a very close race for second place, with the candidates' standings often falling within the margin of error [1][2][3].
Actual election results showed a dynamic race, particularly for second place. Karen Bass secured first with 34.3% of the vote, while Nithya Raman placed second with 28.5%, and Spencer Pratt finished third with 25.8%, based on 92.4% reporting on June 9, 2026 [4]. On election night, Spencer Pratt initially held the second-place position over Nithya Raman [7][1][2]. However, Raman ultimately surpassed Pratt as additional mail-in ballots were processed, ensuring her advancement to the November runoff against Bass [7][1][2].
Prediction markets also correctly anticipated the final runoff candidates for the primary. These markets accurately foresaw the advancement of Karen Bass and Nithya Raman to the runoff election [5][6]. In the final days before the election, prediction markets showed high confidence in a "Bass & Raman" outcome [5][6].
Sources (7)
  1. 1Pratt's lead over Raman continues to shrink in LA mayor's race as candidates battle to face Bass in November - CBS Los Angelescbsnews.com
  2. 2Bass out front in LA mayor's race; Pratt runs second - KESQkesq.com
  3. 3LA Mayor Primary: Final Polls, Chances as Bass, Pratt, Raman Face Off - Newsweeknewsweek.com
  4. 4Los Angeles Mayor Primary 2026 Live Results - NBC Newsnbcnews.com
  5. 5LA Mayoral Election: Who will advance to the 2nd round? P... 2026 | Polymarketpolymarket.copilot.markets
  6. 6June 2, 2026: Los Angeles mayor matchup Prediction Marketrobinhood.com
  7. 7LA mayor race: Bass will face Raman in November. Pratt is out | LAistlaist.com

7. How do Karen Bass's and Nithya Raman's policy positions on public safety and housing differ ahead of the November runoff?

Bass Police Staffing Goal9,500 officers [1][2][3]
Raman Police Staffing ViewMaintain current 8,550 officers [1][2][3]
Raman Housing ApproachAccelerate production, including single-family zones [1][2][3][4]
Karen Bass and Nithya Raman offer distinct approaches to public safety and housing. Ahead of the November 3, 2026, runoff election, Bass generally favors restoring police staffing and is cautious about increasing housing density [5][6][7][8]. On public safety, Bass's platform aims to restore the Los Angeles Police Department's staffing to 9,500 officers, and she also defended the 2023 police contract [1][2][3]. For housing, Bass supports her 'Inside Safe' initiative and has expressed caution concerning state-mandated density increases [1][2][3][4].
Nithya Raman emphasizes alternative safety methods and accelerated housing production. Her public safety strategy prioritizes maintaining current police staffing levels, which are approximately 8,550 officers, while focusing on alternative public safety strategies [1][2][3]. For housing, Raman advocates for accelerating housing production citywide, including in single-family zones [1][2][3][4]. She also holds a more pro-density stance, which is supported by YIMBY groups [1][2][3][4].
Sources (8)
  1. 1LA Mayor Debate: Bass Defends Record, Raman Calls for Change | Elections | westsidecurrent.comwestsidecurrent.com
  2. 2Mayor Karen Bass and challenger Nithya Raman tussle in first head-to-head debate – DNYUZdnyuz.com
  3. 3Bass and Raman Face Off in Mayoral Debate Hosted by Sherman Oaks Homeowners - The San Fernando Valley Sunsanfernandosun.com
  4. 4LA mayor race: Candidates offer starkly different housing visionsthelalocal.org
  5. 5Nithya Raman advances over Spencer Pratt to face L.A. Mayor Karen Bass in a runoffnbcnews.com
  6. 6How Nithya Raman went from last-minute candidate to the L.A....latimes.com
  7. 7LA mayor race: Bass will face Raman in November. Pratt is out | LAistlaist.com
  8. 8Liberal council member advances to runoff with Bass in Los Angeles...washingtonpost.com

8. What were the official final vote totals and percentages for Karen Bass, Nithya Raman, and Spencer Pratt in the June 2nd primary?

Karen Bass votes275,992 (34.3%) [1]
Nithya Raman votes229,576 (28.5%) [1]
Spencer Pratt votes207,757 (25.8%) [1]
Karen Bass, Nithya Raman, and Spencer Pratt garnered significant primary votes. In the June 2, 2026 Los Angeles mayoral primary, Karen Bass received 275,992 votes (34.3%), while Nithya Raman secured 229,576 votes (28.5%), and Spencer Pratt obtained 207,757 votes (25.8%) [1]. These figures represent the most recent reporting as of June 9, 2026; however, it is noted that these totals are not explicitly stated as the official final vote counts [1].
Bass and Raman advanced to the November runoff election. Following the primary, Karen Bass and Nithya Raman successfully progressed to the November runoff election [2][3][4]. Spencer Pratt was eliminated from contention for the mayoral race [2][3][4].
Sources (4)
  1. 1Los Angeles Mayor Primary 2026 Live Resultsnbcnews.com
  2. 2LA mayor race: Bass will face Raman in November. Pratt is out | LAistlaist.com
  3. 3Los Angeles mayor race: Spencer Pratt eliminated from race for mayor as Nithya Raman, Karen Bass advance to runoff - ABC7 Los Angelesabc7.com
  4. 4After stunning rise, Spencer Pratt falls short in race for LA mayor | AP Newsuat.apnews.com

9. What specific campaign events or endorsements in late May 2026 corresponded with the major price spikes seen in the market?

Poll Release DateMay 28, 2026 [1]
Karen Bass Poll Standing26% [1]
Gavin Newsom Endorsement DateMay 28, 2026 [2]
A UC Berkeley–Los Angeles Times poll significantly impacted Los Angeles mayoral prediction markets in late May 2026. The poll, released on May 28, 2026, revealed a tight three-way contest ahead of the June 2 primary: incumbent Karen Bass at 26%, Nithya Raman at 25%, and Spencer Pratt at 22% [1]. Following this release, Nithya Raman’s odds surged in prediction markets, and Spencer Pratt’s market also experienced a notable spike on May 29 as traders reassessed his viability to advance. Karen Bass’s market odds additionally shifted during this period [1].
Incumbent Mayor Karen Bass secured high-profile endorsements to strengthen her position. Concurrently with the poll’s release, Mayor Bass received significant endorsements in late May 2026. These included support from California Governor Gavin Newsom, announced on May 28 [2]. Additionally, actor and activist Jane Fonda also announced her endorsement of Mayor Karen Bass on the same day, May 28 [3][4].
Sources (4)
  1. 1LA mayoral odds shift as Raman surges, Bass and Pratt slidenews.kalshi.com
  2. 2Newsom Endorses Karen Bass in Tight LA Mayor Racelamag.com
  3. 3Jane Fonda Endorses LA Mayor Karen Bass for Reelection | Exclusive - TheWrapthewrap.com
  4. 4Jane Fonda endorses Mayor Karen Bass ahead of Los Angeles mayoral primary | Fox Newsfoxnews.com

10. What Could Change the Odds

Key Catalysts

Key catalysts for the Los Angeles mayoral election include the general municipal election, which was scheduled for November 3, 2026, and would include a runoff for the mayoral office if required [1][2]. This follows the primary nominating election which occurred on June 2, 2026 [3][4][1][2]. As of June 9, 2026, prediction markets indicated Karen Bass as the favorite to win the mayoral race, with odds typically ranging between 56% and 58%, followed by Nithya Raman [5][6][7].
The final resolution of market probabilities will occur by the resolution dates set by various prediction markets. Prediction markets for the 2026 Los Angeles mayoral election, such as Kalshi, Polymarket, and Coinbase, generally have resolution dates set through June 2, 2027, to allow for the final resolution of all potential outcomes and official certification processes [5][6][8][7].

Key Dates & Catalysts

  • Expiration: June 02, 2027
  • Closes: June 02, 2027
Sources (8)
  1. 1Municipal Elections | Office of the City Clerkclerk.lacity.gov
  2. 22026 GENERAL INFORMATION FOR MUNICIPAL CANDIDATESclerk.lacity.gov
  3. 3City of Los Angeles Election Calendarcityclerk.lacity.org
  4. 42026 GENERAL INFORMATION FOR MUNICIPAL CANDIDATES | Office of the City Clerkclerk.lacity.org
  5. 5Los Angeles Mayor winner? Odds & Predictions 2026 - Kalshikalshi.com
  6. 6Los Angeles Mayoral Election Predictions & Odds 2026 | Polymarketpolymarket.com
  7. 7Who will win Los Angeles Mayoral… Odds | Kalshi & Polymarketpredictmarketcap.com
  8. 8Los Angeles Mayor winner? | Prediction Markets | Coinbasecoinbase.com

12. Historical Resolutions

Historical Resolutions: 4 markets in this series

Outcomes: 0 resolved YES, 4 resolved NO

Recent resolutions:

  • KXLAMAYORPRIMARYEXACT-26JUN02-RAM-PRA-BAS: NO (Jun 09, 2026)
  • KXLAMAYORPRIMARYEXACT-26JUN02-PRA-RAM-BAS: NO (Jun 09, 2026)
  • KXLAMAYORPRIMARYEXACT-26JUN02-PRA-BAS-RAM: NO (Jun 09, 2026)
  • KXLAMAYORPRIMARYEXACT-26JUN02-BAS-PRA-RAM: NO (Jun 09, 2026)