Event: WMA Spring League Division 1

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Opponent	Rating	Result
Henrik Stepanyan	2372	0 - 1
Julian H Summerfield	1820	1 - 0
David Flynn	1840	½ - ½
David Cleak	0	1 - 0
Henrik Stepanyan	2372	0 - 1
Julian H Summerfield	1820	1 - 0
David Flynn	1840	1 - 0
David Cleak	0	1 - 0

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

1658 = (12064 + 400 * (5 - 2)) / 8)