Event: Club Championship

Opponent Rating Result
Roger Coleman 1245
Ken Elinor 1318 0 - 1
Robert Perry 1197
Raymond F Rhodes 1245
Martin J Chadwick 1289 0 - 1
Roger Coleman 1212 0 - 1
Ken Elinor 1281
Robert Perry 1181
Raymond F Rhodes 1249
Martin J Chadwick 1271 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1073 = (5090 + 400 * (1 - 3)) / 4)

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