| Platform | Markets | Midpoint Brier | Relative Score | ||
|---|---|---|---|---|---|
| Kalshi | 13 | C | 0.0727 | A- | -0.008 |
| Manifold | 34 | C | 0.1218 | C- | +0.010 |
| Metaculus | 17 | C | 0.1201 | C+ | +0.003 |
| Polymarket | 16 | C | 0.1245 | A- | -0.011 |
| Overall | 80 | C | 0.1140 | B | 0.0015 |
Calibration plot from all resolved questions, market probability at midpoint versus average resolution value. n=329,587 markets
Source: brier.fyi
Brier scores from all resolved questions, using probability at market midpoint. Lower scores are better. n=329,587 markets
Source: brier.fyi
| Kalshi | D | +0.016 |
| Manifold | F | +0.042 |
| Metaculus | A | -0.016 |
| Polymarket | A | -0.038 |
| Kalshi | A | -0.023 |
| Manifold | B+ | -0.009 |
| Polymarket | F | +0.043 |
| Manifold | C- | +0.007 |
| Metaculus | B | -0.007 |
| Polymarket | D | +0.018 |
| Manifold | C | +0.002 |
| Metaculus | C | +0.002 |
| Polymarket | B- | -0.004 |
| Kalshi | C- | +0.007 |
| Manifold | C- | +0.008 |
| Polymarket | C | +0.001 |