Top-Level Categoirzation

When we link markets from different platforms together into questions, we assign that question to one of the categories shown below. These are high-level bins, wide enough that almost all platforms should have some markets that fall under that umbrella.
For each category below you'll see the "report card", showing how many markets each platform had in this category and how they performed both in an absolute sense and how well they compared to their peers. You'll also see the overall score, showing how the markets did on average.

Culture

  • 86
  • 27,273
  • $18,896,577

Questions about the most popular movies, TV, music, games, celebrities, and the awards surrounding it all. More broadly, questions about demographics, cultural trends, and societal issues.

Platform Markets Midpoint Brier Relative Score
Kalshi
22
F
0.2996
A-
-0.013
Manifold
30
D-
0.2325
D-
+0.018
Metaculus
8
D-
0.2018
F
+0.051
Polymarket
26
D-
0.1734
B
-0.008
Overall
86
D-
0.2290
D+
0.0052
  • 2,796
  • $8,910,313

Manifold
A+
-0.041
Polymarket
F
+0.041
  • 2,589
  • $1,039,693

Kalshi
A
-0.032
Manifold
F
+0.032
Polymarket
D+
+0.004
  • 2,738
  • $1,976,551

Kalshi
B-
-0.002
Manifold
B
-0.005
Metaculus
F
+0.195
Polymarket
C-
+0.003
  • 1,933
  • $644,066

Kalshi
S
-0.177
Manifold
F
+0.159
Metaculus
F
+0.169
Polymarket
A-
-0.013
  • 1,487
  • $552,016

Manifold
A
-0.018
Polymarket
D-
+0.018

Economics

  • 78
  • 65,249
  • $119,132,827

Predictions for financial markets, economic indicators, and cryptocurrency. Includes forecasts on inflation, interest rates, commodity prices, and major economic developments worldwide.

Platform Markets Midpoint Brier Relative Score
Kalshi
13
D
0.0727
B+
-0.008
Manifold
33
D-
0.1251
D
+0.011
Metaculus
16
D-
0.1270
C-
+0.004
Polymarket
16
D-
0.1245
A-
-0.011
Overall
78
D-
0.1166
C
0.0016
  • 5,683
  • $24,062,377

Kalshi
D
+0.016
Manifold
F
+0.042
Metaculus
A
-0.016
Polymarket
A
-0.038
  • 7,195
  • $19,564,533

Kalshi
A
-0.023
Manifold
B+
-0.009
Polymarket
F
+0.043
  • 2,056
  • $12,623,395

Manifold
D+
+0.007
Metaculus
B
-0.007
Polymarket
D-
+0.018
  • 6,189
  • $1,458,974

Manifold
C
+0.002
Metaculus
C-
+0.002
Polymarket
B-
-0.004
  • 3,245
  • $30,076,768

Kalshi
D+
+0.007
Manifold
D+
+0.008
Polymarket
C
+0.001
  • 6,297
  • $6,194,788

Manifold
C
+0.001
Polymarket
C+
-0.001

Politics

  • 547
  • 325,049
  • $2,775,605,060

Tracking electoral outcomes, policy changes, and geopolitical events. Covers national and international politics, including elections, conflicts, treaties, and major diplomatic developments.

Platform Markets Midpoint Brier Relative Score
Kalshi
88
D-
0.1597
B
-0.006
Manifold
209
D-
0.1762
D+
+0.005
Metaculus
93
D-
0.1453
C-
+0.003
Polymarket
157
D-
0.1627
C+
-0.001
Overall
547
D-
0.1644
C
0.0013
  • 18,015
  • $1,794,564,130

Kalshi
A
-0.027
Manifold
F
+0.039
Metaculus
A
-0.026
Polymarket
A
-0.017
  • 10,634
  • $65,015,804

Kalshi
C+
-0.000
Manifold
B
-0.005
Metaculus
C+
-0.000
Polymarket
D
+0.009
  • 6,965
  • $54,657,350

Manifold
D
+0.012
Metaculus
A-
-0.011
Polymarket
C
+0.001
  • 7,506
  • $156,704,030

Kalshi
C
+0.001
Manifold
F
+0.036
Polymarket
A
-0.032
  • 4,075
  • $9,515,651

Kalshi
B
-0.006
Manifold
F
+0.058
Metaculus
A+
-0.060
Polymarket
C+
-0.002
  • 4,010
  • $6,573,189

Manifold
D-
+0.021
Metaculus
A-
-0.013
Polymarket
A-
-0.012

Science

  • 80
  • 27,346
  • $28,111,865

Following advances across scientific disciplines, from climate research to space exploration and biotechnology. When will the next advances happen, and how much of an impact will they have?

Platform Markets Midpoint Brier Relative Score
Kalshi
20
D
0.1046
C-
+0.004
Manifold
30
D-
0.2010
D+
+0.008
Metaculus
14
D-
0.2446
B
-0.007
Polymarket
16
D
0.0622
A
-0.025
Overall
80
D-
0.1567
B-
-0.0022
  • 3,650
  • $662,333

Kalshi
B
-0.005
Manifold
D+
+0.007
Polymarket
C-
+0.003
  • 885
  • $106,521

Kalshi
D+
+0.005
Manifold
C
+0.000
Metaculus
B-
-0.003
  • 1,423
  • $874,223

Kalshi
D-
+0.022
Manifold
A
-0.021
Polymarket
C
+0.001
  • 1,266
  • $2,730,812

Kalshi
F
+0.105
Manifold
A
-0.038
Polymarket
S
-0.249
  • 1,824
  • $4,375,696

Kalshi
F
+0.025
Manifold
F
+0.044
Polymarket
S
-0.085
  • 1,361
  • $453,721

Kalshi
C-
+0.002
Manifold
B
-0.004
Polymarket
C
+0.001

Sports

  • 84
  • 41,594
  • $195,652,933

Forecasting outcomes in professional athletics. Covers game results, championship predictions, player performance metrics, and olympic medals.

Platform Markets Midpoint Brier Relative Score
Kalshi
19
F
0.2825
A-
-0.015
Manifold
35
F
0.4346
D
+0.013
Metaculus
4
F
0.2536
D-
+0.019
Polymarket
26
F
0.2633
A-
-0.011
Overall
84
F
0.3386
C+
-0.0003
  • 6,852
  • $21,883,882

Kalshi
C+
-0.002
Manifold
D+
+0.005
Polymarket
B-
-0.003
  • 8,866
  • $13,900,079

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

Kalshi
D
+0.010
Manifold
A-
-0.010
Polymarket
C+
-0.000
  • 2,457
  • $2,389,351

Manifold
B+
-0.010
Metaculus
D
+0.012
Polymarket
A
-0.024
  • 5,595
  • $15,931,114

Manifold
D
+0.013
Polymarket
A-
-0.013
  • 585
  • $23,534,588

Kalshi
A
-0.017
Manifold
D-
+0.023
Polymarket
A+
-0.040

Technology

  • 67
  • 24,235
  • $7,696,816

Monitoring innovations in the tech industry such as new devices and AI capabilities. Also covers new advancements in tech such as blockchain, quantum computing, and virtual reality.

Platform Markets Midpoint Brier Relative Score
Kalshi
16
F
0.2997
A-
-0.014
Manifold
27
F
0.2884
D+
+0.005
Metaculus
11
D-
0.1880
D+
+0.004
Polymarket
13
D-
0.1534
C+
-0.001
Overall
67
D-
0.2484
C+
-0.0008
  • 5,346
  • $979,181

Kalshi
C
+0.002
Manifold
C+
-0.002
Polymarket
C-
+0.002
  • 1,897
  • $959,286

Kalshi
C+
-0.001
Manifold
C+
-0.000
Polymarket
C
+0.001
  • 1,996
  • $436,675

Kalshi
D-
+0.022
Manifold
C+
-0.002
Polymarket
A-
-0.014
  • 1,653
  • $1,749,240

Kalshi
A
-0.029
Manifold
D-
+0.021
Polymarket
D+
+0.008
  • 987
  • $417,694

Manifold
D
+0.009
Polymarket
B+
-0.009
  • 1,914
  • $940,331

Kalshi
B
-0.005
Manifold
D-
+0.022
Polymarket
B-
-0.002