Event: Ipswich Chess Club Championship

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Opponent	Rating	Result
Kenneth Fowler	1450	0 - 1
Gary Kilpatrick	1400	1 - 0
David Wright	1718	1 - 0

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

1656 = (4568 + 400 * (2 - 1)) / 3)