Event: Kenneth Appleby

PDF Excel

Opponent	Rating	Result
Neil Harris	39	1 - 0
Peter J Clark	111	0 - 1
John Hipshon	123	0 - 1
Philip May	98	1 - 0

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

93 = (371 + 400 * (2 - 2)) / 4)