Event: WMA Spring League Division 1

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Opponent	Rating	Result
Stephen V Woodhouse	1916	1 - 0
David Riley	0	1 - 0
Harry G Evans	1959	1 - 0
John Pitcher	0	½ - ½
Stephen D Mellor	0	1 - 0
Andrew P McCumiskey	0	1 - 0
Stephen V Woodhouse	1916	1 - 0
David Riley	0	1 - 0
Harry G Evans	1959	1 - 0
John Pitcher	0	1 - 0
Stephen D Mellor	0	0 - 1
Andrew P McCumiskey	0	0 - 1

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

879 = (7750 + 400 * (9 - 2)) / 12)