Event: League Division Two

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Opponent	Rating	Result
Zana Aziz	131	0 - 1
Paul Howden	147	½ - ½
Karim Khan	143	½ - ½
Peter F Mason	153	1 - 0
Robert Dennington	117	1 - 0
Matthew Dowell	94	1 - 0
Steve Harrington	119	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

243 = (904 + 400 * (3 - 1)) / 7)