| Platform | Markets | Midpoint Brier | Relative Score | ||
|---|---|---|---|---|---|
| Kalshi | 16 | D | 0.2997 | A- | -0.014 |
| Manifold | 28 | D | 0.2785 | C+ | +0.005 |
| Metaculus | 12 | D+ | 0.1742 | C+ | +0.004 |
| Polymarket | 13 | C- | 0.1534 | B | -0.001 |
| Overall | 69 | D | 0.2417 | B | -0.0008 |
Calibration plot from all resolved questions, market probability at midpoint versus average resolution value. n=10,820 markets
Source: brier.fyi
Brier scores from all resolved questions, using probability at market midpoint. Lower scores are better. n=10,820 markets
Source: brier.fyi
| Kalshi | C | +0.002 |
| Manifold | C+ | -0.002 |
| Polymarket | C | +0.002 |
| Kalshi | C+ | -0.001 |
| Manifold | C+ | -0.000 |
| Polymarket | C | +0.001 |
| Kalshi | D | +0.022 |
| Manifold | C+ | -0.002 |
| Polymarket | A- | -0.014 |
| Kalshi | A | -0.029 |
| Manifold | D | +0.021 |
| Polymarket | C- | +0.008 |
| Kalshi | B | -0.005 |
| Manifold | D | +0.022 |
| Polymarket | B- | -0.002 |