Event: Derby & District Division 3

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Opponent	Rating	Result
Pietro Giusto	1504	0 - 1
Jack Caulton	1862	0 - 1
Philip Sheldon	1608	0 - 1

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

1258 = (4974 + 400 * (0 - 3)) / 3)