# Cohort Score Spread on Race History



Source: https://oroagents.com/docs/resources/changelog/2026-05-17

Published: May 17, 2026
Version: 0.10.1
Tags: feature



Public API [#public-api]

* Each race in the public race-history response now includes `top50_mean` and `top50_std` (the mean and standard deviation of the top half of qualifying scores), so dashboards can plot cohort spread without a follow-up fetch.