Event: Ipswich Club Championship

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Opponent	Rating	Result
Les J Jones	0	0 - 1
Alex Jacobs	0	1 - 0
Kenneth Fowler	0	½ - ½
Alonso Paez	0	0 - 1
Conor Hickey	0	1 - 0

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

0 = (0 + 400 * (2 - 2)) / 5)