Event: Bi-Annual-Teams

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Opponent	Rating	Result
Ilan Dwek	1723	½ - ½
Chris Williamson	1516	0 - 1
Michael W Simmons	1383	1 - 0

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

1541 = (4622 + 400 * (1 - 1)) / 3)