Event: WMA Autumn League Division 1

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Opponent	Rating	Result
Robert C Stern	1945	1 - 0
Joe Rastall	1600	1 - 0
Geoffrey Marchant	2005	1 - 0
Neil J Owen	1945	1 - 0
Kevin Hurney	1976	1 - 0
Perry Walker	1600	1 - 0
Robert C Stern	1945	½ - ½
Joe Rastall	1600	1 - 0
Geoffrey Marchant	2005	½ - ½
Neil J Owen	1945	1 - 0
Kevin Hurney	1976	½ - ½
Perry Walker	1600	1 - 0

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

2145 = (22142 + 400 * (9 - 0)) / 12)