Event: Division 4

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Opponent Rating Result
Roland Robson 1367 0 - 1
Mike Warden 1522 0 - 1
Sameer Khan 1700 1 - 0
William Hunt 1413 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1301 = (6002 + 400 * (1 - 3)) / 4)

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Opponent Rating Result
Mike Nevin 1636 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1236 = (1636 + 400 * (0 - 1)) / 1)