Event: Ipswich Chess Club Championship

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Opponent	Rating	Result
Les J Jones	1744	1 - 0
Angus Irving	1792	0 - 1
Conor Hickey	1450	0 - 1

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

1529 = (4986 + 400 * (1 - 2)) / 3)