Event: Morpeth Rated Rapidplay

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Opponent	Rating	Result
John G Horton	1903	0 - 1
Phil Eastlake	1784	0 - 1
Martin Seeber	1879	0 - 1

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

1455 = (5566 + 400 * (0 - 3)) / 3)