Event: OTB Club Championship

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Opponent	Rating	Result
Pete Meadows	1731	0 - 1
Joseph Rosenberg	1548	½ - ½
Huw D Jacob	1645	½ - ½
Krishna Raikundalia	1542	0 - 1
Jean L Mara	1102	1 - 0
John V Jestico	1469	0 - 1
Terry C Skippen	1501	½ - ½

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

1391 = (10538 + 400 * (1 - 3)) / 7)