Three-time gold champion Thomas recorded a time of 22.21 seconds, but Olympic bronze medallist Brown finished in 22.18 seconds.
At the women's-only track invitational, Faith Kipyegon, the Kenyan 1500-meter world record holder, and Marileidy Paulino, the Olympic 400-meter champion, were two of the champions who took home $60,000 (Ā£44,90.
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