Event: MCF Heaton Cup

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Opponent	Rating	Result
Donna Chadwick	985	1 - 0
Andrew J Stoker	2027	0 - 1
Barbara Farrar	1120	1 - 0
Leila Peymani	0	0 - 1
David Hynes	0	1 - 0

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

906 = (4132 + 400 * (3 - 2)) / 5)