Event: The Friendly League

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Opponent Rating Result
Martyn Hamer 2129 0 - 1
Eric Mansfield 1428 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1379 = (3557 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Colin Sinclair 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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