Event: League Division Three

Opponent Rating Result
Peter Saunders 109 0 - 1
Bill Tait 133 1 - 0
Martin R Blythe 111 ½ - ½
Dominic Gallagher 108 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

215 = (461 + 400 * (2 - 1)) / 4)

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