Event: Division One

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Opponent Rating Result
Andy Ambrose 1758 ½ - ½
Trevor J Holt 1780 1 - 0
Roy A Lawrence 1868 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1935 = (5406 + 400 * (1 - 0)) / 3)

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