Event: 4-Board Division 2

Opponent Rating Result
Joseph Catto 100 1 - 0
Stephen Brown 105 1 - 0
David J Gibson 113 ½ - ½
Robin A Edwards 120 0 - 1
Oliver MacDonald 100 1 - 0
David J Gibson 113 ½ - ½
Floyd Askin 55 1 - 0
Janina Kanajeva 90 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

250 = (796 + 400 * (4 - 1)) / 8)

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