Event: U1650R summer league

Opponent Rating Result
Sunil Vasistha 1290 ½ - ½
Alex Ansher 1000 1 - 0
Sunil Vasistha 1290 1 - 0
Alex Ansher 1000 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1445 = (4580 + 400 * (3 - 0)) / 4)

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