Event: Hammersmith Sledgehammer Cup

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Opponent	Rating	Result
Wayne Laviniere	1419	1 - 0
Luna Eastham	1475	0 - 1
Paul van Kan	1459	1 - 0
Frantisek Zacek	1289	0 - 1
Julius Lawless-Master	1430	½ - ½
Leo Kowalski Rubiales	1411	1 - 0
Alex Riccio	0	1 - 0

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

1326 = (8483 + 400 * (4 - 2)) / 7)