Event: 6600-max Rapid-play

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Opponent	Rating	Result
Chris East	1582	0 - 1
Derek Green	1520	1 - 0
Elias Angel	1420	½ - ½
Stefan Winman	1188	½ - ½
Chris East	1582	1 - 0
Derek Green	1520	0 - 1
Elias Angel	1420	1 - 0
Stefan Winman	1188	1 - 0

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

1528 = (11420 + 400 * (4 - 2)) / 8)