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Event: Online League Division 2 (Spring 2021)

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Opponent Rating Result
Brian E Foster 1561 0 - 1
Gerry Stonehouse 1198 1 - 0
Neville T Rowden 1251 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1470 = (4010 + 400 * (2 - 1)) / 3)

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