Event: Spring OTB Division 4

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Opponent Rating Result
Ivan Urwin 1509 1 - 0
Thisumi Jayawarna 1718 0 - 1
Bryony Eccleston 1366 0 - 1
Harry Atack 944 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1384 = (5537 + 400 * (2 - 2)) / 4)

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