Event: Summer League Division 2

Opponent Rating Result
Mark Watson 1430 1 - 0
Xiaorui Wang 1464 0 - 1
Xiaorui Wang 1464 0 - 1
Mark Watson 1430 1 - 0
Ben G Hunt 1524 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1542 = (7312 + 400 * (3 - 2)) / 5)

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