Event: Baum Trophy summer league

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Opponent	Rating	Result
Ashwin Anjulan	1212	1 - 0
Taha Undre	1696	1 - 0
Michael GA Wilson	1610	0 - 1
Jay Sharman	1600	½ - ½
Ashwin Anjulan	1212	1 - 0
Taha Undre	1696	0 - 1
Michael GA Wilson	1610	0 - 1
Jay Sharman	1600	1 - 0
Istvan Karacsony	1592	0 - 1
Istvan Karacsony	1592	0 - 1

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

1502 = (15420 + 400 * (4 - 5)) / 10)