Event: 3rd Chess Centre Rapid U1750

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Opponent	Rating	Result
Ashish Richard	879	1 - 0
Ian Gaskin	1629	1 - 0
Ian McDonald	1652	0 - 1
Colin Frank	1654	0 - 1
Edward Alexander	782	1 - 0

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

1399 = (6596 + 400 * (3 - 2)) / 5)