Event: U1940 Tournament

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Opponent	Rating	Result
Kevin Chilvers	1710	1 - 0
Andrew D Bettley	1799	1 - 0
Jack Walker	1756	0 - 1

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

1888 = (5265 + 400 * (2 - 1)) / 3)