Event: Pre-Season Swiss

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Opponent	Rating	Result
Simon R Edwards	2048	0 - 1
Lewis J Corden	800	1 - 0
David A Hallen	1477	½ - ½

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

1442 = (4325 + 400 * (1 - 1)) / 3)