Event: WMA Summer League Division 1

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Opponent	Rating	Result
Kevin Hurney	180	½ - ½
David Flynn	155	0 - 1
Stephen D Mellor	181	0 - 1
Sam J Hall	120	1 - 0
Neil J Owen	0	0 - 1
Tim A Lane	162	1 - 0
Nigel Byrne	142	1 - 0
Kevin Hurney	180	1 - 0
David Flynn	155	1 - 0
Stephen D Mellor	181	0 - 1
Sam J Hall	120	1 - 0
Neil J Owen	0	0 - 1
Tim A Lane	162	0 - 1
Nigel Byrne	142	1 - 0

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

163 = (1880 + 400 * (7 - 6)) / 14)