Topic tracker · Sports
Professional Basketball Series
Every prediction market Kalshi has run in this series — 10 so far (0 live, 10 closed) — with Octagon's independent model probability tracked against the market at each print. This page is updated as new Professional Basketball Series markets list, so it always points at the current market and keeps the resolved history below.
Last updated May 16, 2026
Series history
Closed markets in this series, newest first, with the final Octagon model vs market read before close. Each report stays live with its full analysis.
| Market | Closed | Model vs market | Actions |
|---|---|---|---|
| Game 7: Cleveland vs Detroit | June 2, 2026 | 70.8% vs 65.0% | Report → |
| Series Winner: Minnesota (6) vs San Antonio (2) | June 2, 2026 | 94.3% vs 92.0% | Report → |
| Series Winner: Philadelphia (7) vs New York (3) | June 2, 2026 | 85.0% vs 97.0% | Report → |
| Game 7: Philadelphia (7) vs Boston (2) | May 17, 2026 | 29.4% vs 30.0% | Report → |
| Series Winner: Houston (5) vs Los Angeles L (4) | May 16, 2026 | 53.7% vs 73.0% | Report → |
| Series Winner: Toronto (5) vs Cleveland (4) | May 16, 2026 | 88.3% vs 90.0% | Report → |
| Series Winner: Atlanta (6) vs New York (3) | May 16, 2026 | 88.2% vs 86.0% | Report → |
| Series Winner: Minnesota (6) vs Denver (3) | May 16, 2026 | 53.8% vs 56.0% | Report → |
| Series Winner: Orlando (8) vs Detroit (1) | May 16, 2026 | 75.7% vs 70.0% | Report → |
| Series Winner: Portland (7) vs San Antonio (2) | May 18, 2026 | 94.6% vs 95.0% | Report → |
