Event: Christmas Allegro

PDF Excel

Opponent	Rating	Result
Martin G Walker	2142	0 - 1
Colin R Payne	1522	0 - 1
Pranavsuriya Kumarvimala	1347	1 - 0
Stephen F Crane	1526	1 - 0
Graham R Jones	1368	1 - 0
Graham K Blowers	1741	1 - 0

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

1741 = (9646 + 400 * (4 - 2)) / 6)