Event: Sheffield Chess Centre U1750

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Opponent	Rating	Result
Kirin Harrington	1341	1 - 0
Rishab Cammanchery Krishnan	1398	0 - 1
Marek Krajci	1492	1 - 0
David C Dunne	1427	1 - 0
Wade Udin	1389	1 - 0
Michael I Connor	1702	½ - ½

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

1658 = (8749 + 400 * (4 - 1)) / 6)