Event: Hepolite (Rapidplay)

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Opponent	Rating	Result
Greg T Eagleton	2063	0 - 1
Greg T Eagleton	2063	0 - 1
Billy Lephard	1522	0 - 1
Billy Lephard	1522	1 - 0
Simon Fitzgerald	855	1 - 0
Simon Fitzgerald	855	1 - 0
Chris S Edwards	1466	0 - 1
Chris S Edwards	1466	½ - ½

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

1427 = (11812 + 400 * (3 - 4)) / 8)