Event: Division Four

Opponent Rating Result
Joshua Skyrme 1533 1 - 0
Lennie Johnson 1556 0 - 1
Paul Bignall 1458 1 - 0
Derek A Stockhall 1568 1 - 0
Paul Heeney 1450 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1673 = (7565 + 400 * (3 - 1)) / 5)

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