Event: Super League

Opponent Rating Result
Daniel M Lambourne 2132 1 - 0
Ian A Robson 2200 0 - 1
Ian P Blencowe 1582 1 - 0
Jim Beaty 1909 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2056 = (7823 + 400 * (2 - 1)) / 4)

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