Event: MCA Division 2

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Opponent	Rating	Result
Tom EC Webb	1653	1 - 0
Chris Kaye	1548	1 - 0
Ron Harrison	0	0 - 1
Steven Philp	1623	1 - 0
Charles J Fletcher	0	1 - 0
Sean Kane	1600	0 - 1
Jimmy Gallagher	1600	½ - ½

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

1261 = (8024 + 400 * (4 - 2)) / 7)