Event: Weymouth U1550 2023

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Opponent Rating Result
Kevin D Markey 1463 ½ - ½
Anthony Tatam 1536 1 - 0
Lana Boztas 1494 0 - 1
Dave Williams 1389 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1371 = (5882 + 400 * (1 - 2)) / 4)

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