BestRacesroad · Youth jr age 6 9 · Youth sr age 10 13
Ballwin Kids Triathlon
| Distances | Youth jr age 6 9, Youth sr age 10 13 |
| Surface | road |
| USATF certified | No |
| Boston qualifier | No |
From the race's RunSignup listing, last updated October 12, 2026.
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Race-day weather
What the weather did on September 19 in each of the last 5 years, measured at St Charles 7 SSW, 6.4 miles from Ballwin.
| Year | High | Low | Rain |
|---|---|---|---|
| 2026 | 97°F | 65°F | none |
| 2025 | 94°F | 64°F | none |
| 2024 | 90°F | 60°F | none |
| 2023 | 80°F | 57°F | none |
| 2022 | 86°F | 67°F | 0.15 in |
Daily highs and lows, not start-line temperatures: most races start in the cool of the morning, closer to the low. Source: NOAA National Centers for Environmental Information, GHCN-Daily.
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Preset to race weekend, Sep 18 – 20.
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