Event: Summer Tournament 2023

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Opponent Rating Result
Rob Strachan 1180 1 - 0
Iwan Cave 2156 0 - 1
Lee Mundy 1277 0 - 1
James Gray 1235
N George 1436 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1312 = (6049 + 400 * (1 - 3)) / 4)

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