Event: Hepolite (Rapidplay)

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Opponent	Rating	Result
AJ (Tony) Slinger	1847	½ - ½
AJ (Tony) Slinger	1847	0 - 1
Ian Goater	1427	1 - 0
Ian Goater	1427	½ - ½
Patrick Jagger	0	0 - 1
Patrick Jagger	0	1 - 0
Colin S Procter	1754	0 - 1
Colin S Procter	1754	0 - 1

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

1157 = (10056 + 400 * (2 - 4)) / 8)