Event: Ipswich Club Championship

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Opponent	Rating	Result
Bernard Ross	0	1 - 0
Conor Hickey	0	1 - 0
Tom Gordon	0	0 - 1
Martyn Colebrook	0	1 - 0
Angus Irving	0	0 - 1
Ken Lunn	0	1 - 0

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

133 = (0 + 400 * (4 - 2)) / 6)