Event: Open Rapid-play

PDF Excel

Opponent	Rating	Result
Jeremy Fallowfield	2097	0 - 1
Chris Chadwick	1998	1 - 0
Golam S Ali	1942	1 - 0
Ian Emery	1928	0 - 1
Mark A Drugan	1832	1 - 0
Jeremy Fallowfield	2097	0 - 1
Chris Chadwick	1998	0 - 1
Golam S Ali	1942	1 - 0
Ian Emery	1928	0 - 1
Mark A Drugan	1832	1 - 0

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

1959 = (19594 + 400 * (5 - 5)) / 10)