Event: U1650 Cup

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Opponent	Rating	Result
Bernard Ross	1203	0 - 1
Warwick Estlea	1480	½ - ½
Felix Todd	1600	0 - 1

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

1161 = (4283 + 400 * (0 - 2)) / 3)