Track & Field Day 1: Barega stuns, U.S. trio moves on, Ta Lou PRs
![Ivory Coast's Marie-Josee Ta Lou reacts as she wins her race in the women's 100m heats during the Tokyo 2020 Olympic Games](https://ktvz.b-cdn.net/2021/07/Tokyo-Day-TF-GFX-D1-recap-thumb-1440x810.jpg)
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Day 1 track and field recaps, including 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.