Event: Derby & District Division 2

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Opponent	Rating	Result
Mike P Maher	1604	1 - 0
Bowie Carter	1858	0 - 1
Richard Dawson	1564	0 - 1

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

1542 = (5026 + 400 * (1 - 2)) / 3)