Event: 5th Somerset New Year Minor

PDF Excel

Opponent	Rating	Result
John Jeremiah	0	0 - 1
Keven A Lamb	0	0 - 1
Shaun Walsh	1395	1 - 0
Ian Leslie	0	1 - 0
Nidal Shah	0	0 - 1

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

199 = (1395 + 400 * (2 - 3)) / 5)