Event: Hammersmith Rockhammer Cup

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Opponent	Rating	Result
Luna Eastham	1265	0 - 1
Brian Joyce	1202	½ - ½
Ljubomir Koncar	1261	0 - 1

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

976 = (3728 + 400 * (0 - 2)) / 3)