Event: Ipswich Chess Club Championship

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Opponent	Rating	Result
Luke Griffin	1400	1 - 0
Andrew Shephard	1858	0 - 1
Kenneth Fowler	1450	1 - 0

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

1703 = (4708 + 400 * (2 - 1)) / 3)