Event: Division Two

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Opponent Rating Result
Arthur Thompson 109 0 - 1
Brian Yarker 132 0 - 1
Ian Craig 0 ½ - ½
Les Johnson 129 1 - 0
Ian Goater 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

74 = (370 + 400 * (2 - 2)) / 5)

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