Event: WMA Spring League Division 2

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Opponent	Rating	Result
John P Wrench	1961	0 - 1
Julian H Summerfield	1753	½ - ½
Phil Wells	1654	½ - ½
Steve Shaw	1442	1 - 0
Mark Riley	1633	½ - ½
John P Wrench	1961	½ - ½
Julian H Summerfield	1753	0 - 1
Phil Wells	1654	0 - 1
Steve Shaw	1442	0 - 1
Mark Riley	1633	0 - 1

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

1529 = (16886 + 400 * (1 - 5)) / 10)