Event: Division 2

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Opponent Rating Result
Edward Chu 1455 1 - 0
Bryony Eccleston 1451 ½ - ½
Zak Walsh 1538 0 - 1
Zak Walsh 1538 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1396 = (5982 + 400 * (1 - 2)) / 4)

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