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群体预测有多准?

每个已结算的市场,都以答案揭晓前的最后价格打分:群体的最后一笔成交,若无人交易则采用开盘价。导入的市场以 Kalshi 或 Polymarket 的价格开盘,并由明确标注的市场跟踪器在对方价格变动时同步调整。玩家进场后跟踪器会逐步退出,有五位以上活跃玩家的市场完全交给群体,所以冷门市场大致反映真钱价格,热门市场则反映 Norynta 玩家的判断。无论结果好不好看,我们都会公布。个人玩家与真钱价格的比较请见 跑赢市场.

已打分市场
266
141 个由玩家交易,125 个按开盘价计;最近 365 天
Brier 分数
0.271
越低越好;均等概率为 0.500
相对均等概率的技巧
46%
群体消除了基准误差的多少比例

校准

每个点把市场给出相近概率的预测归为一组。落在对角线上,说明事件发生的频率正好等于定价。

0%0%25%25%50%50%75%75%100%100%Priced 4%, happened 2% (89 forecasts)Priced 14%, happened 10% (41 forecasts)Priced 24%, happened 29% (38 forecasts)Priced 35%, happened 28% (32 forecasts)Priced 45%, happened 45% (62 forecasts)Priced 54%, happened 54% (69 forecasts)Priced 65%, happened 72% (32 forecasts)Priced 75%, happened 73% (37 forecasts)Priced 86%, happened 88% (42 forecasts)Priced 96%, happened 98% (90 forecasts)Market probabilityHow often it happened
Calibration table
Priced betweenAverage priceHappenedForecasts
0–10%4%2%89
10–20%14%10%41
20–30%24%29%38
30–40%35%28%32
40–50%45%45%62
50–60%54%54%69
60–70%65%72%32
70–80%75%73%37
80–90%86%88%42
90–100%96%98%90

按类别

类别市场数Brier
体育1620.387
地缘政治490.066
金融480.117
政治70.069

方法与数据

Market price at resolution: the last market-maker trade before it, or the opening price for untraded markets (imported markets open at the Kalshi or Polymarket price). Multi-outcome Brier score (0 is perfect); baseline assigns equal probability to every outcome; voided events excluded.

同样的数据也以 JSON 形式提供于 /api/play/v1/accuracy,开放中市场的实时概率则在 /api/play/v1/markets/open。两者均可在注明出处的前提下免费使用。游戏积分不具现金价值。