Event: WMA Autumn League Division 1

PDF Excel

Opponent	Rating	Result
Geoffrey Marchant	1600	1 - 0
Neil J Owen	1926	1 - 0
Andrew P McCumiskey	2150	1 - 0
Geoffrey Marchant	2005	0 - 1
Geoffrey Marchant	1600	0 - 1
Neil J Owen	1926	1 - 0
Andrew P McCumiskey	2150	0 - 1
Geoffrey Marchant	2005	½ - ½

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

1970 = (15362 + 400 * (4 - 3)) / 8)