Event: Doncaster League

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Opponent Rating Result
Phillip J Battye 1642 1 - 0
Peter JE Ackley 2111 0 - 1
Neil R Lowther 1887 ½ - ½
Martin J Sheard 1884 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1781 = (7524 + 400 * (1 - 2)) / 4)

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Opponent Rating Result
Gordon Harrison 1393 ½ - ½
Alan J Smith 1603 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1498 = (2996 + 400 * (0 - 0)) / 2)