Track & Field Day 1: Cheptegei chases 10K gold for 1st track medal of Games
![Joshua Cheptegei of Uganda celebrates after winning the Men's 10](https://ktvz.b-cdn.net/2021/07/Day1-Cheptegei-thumb-1440x810.jpg)
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Track and field Day 1 events include the men’s 10,000m final, and first rounds of the men’s 400m hurdles, women’s 100m, women’s 800m, mixed 4x400m and more.