Event: Open Rapid-play

PDF Excel

Opponent	Rating	Result
Ioan Rees	1912	½ - ½
Patrick CM Duncan	2170	1 - 0
Andrew J Moxley	1730	0 - 1
Tony Preece	1868	0 - 1
Ioan Rees	1912	0 - 1
Patrick CM Duncan	2170	0 - 1
Andrew J Moxley	1730	1 - 0
Tony Preece	1868	1 - 0

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

1870 = (15360 + 400 * (3 - 4)) / 8)