Category: Sports
  • 94
  • 48,657
  • $333,738,395
Forecasting outcomes in professional athletics. Covers game results, championship predictions, player performance metrics, and olympic medals.
Platform Markets Midpoint Brier Relative Score
Kalshi
22
D-
0.3364
A-
-0.013
Manifold
38
F
0.4329
C-
+0.012
Metaculus
5
F
0.3958
D
+0.024
Polymarket
29
D
0.2519
A-
-0.010
Overall
94
D-
0.3525
B
0.0001

Charts

Calibration Plot

KalshiManifoldMetaculusPolymarket
0102030405060708090100↑ Resolution0102030405060708090100Prediction (Midpoint) →

Calibration plot from all resolved questions, market probability at midpoint versus average resolution value. n=146,947 markets

Source: brier.fyi

Accuracy Histogram

KalshiManifoldMetaculusPolymarket
05,00010,00015,00020,00025,00030,00035,00040,00045,00050,00055,00060,00065,000↑ Count0.00.10.20.30.40.50.60.70.80.91.0Midpoint Brier score →

Brier scores from all resolved questions, using probability at market midpoint. Lower scores are better. n=146,947 markets

Source: brier.fyi

Questions

  • 6,852
  • $21,883,882

Kalshi
C+
-0.002
Manifold
C
+0.005
Polymarket
B-
-0.003
  • 2,671
  • $54,649,003

Kalshi
B
-0.005
Manifold
A
-0.021
Metaculus
F
+0.044
Polymarket
C+
-0.001
  • 8,866
  • $13,900,079

Kalshi
C+
-0.001
Manifold
B
-0.006
Polymarket
C-
+0.007
  • 4,845
  • $5,899,121

Kalshi
D+
+0.010
Manifold
A-
-0.010
Polymarket
C+
-0.000
  • 4,165
  • $47,420,554

Kalshi
C
+0.001
Manifold
C-
+0.008
Polymarket
C+
-0.001
  • 2,457
  • $2,389,351

Manifold
B+
-0.010
Metaculus
D+
+0.012
Polymarket
A
-0.024