Event: Macclesfield Pomeroy Cup

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Opponent	Rating	Result
Anthony RW Brough	139	0 - 1
John Astley	107	1 - 0
Francis E Moan	133	0 - 1

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

-7 = (379 + 400 * (1 - 2)) / 3)