Event: Division 5

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Opponent Rating Result
Jack McGregor 1474 ½ - ½
Marshall Redmond 1195 ½ - ½
Duncan White 1300 0 - 1
Mark Kirtley 1250 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1105 = (5219 + 400 * (0 - 2)) / 4)

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