Event: U1650 Cup

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Opponent	Rating	Result
Lawrence Garside	1500	0 - 1
Hugo Smith	1458	1 - 0
Ken Lunn	1530	0 - 1

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

1363 = (4488 + 400 * (1 - 2)) / 3)