Event: Walker Shield

PDF Excel

Opponent	Rating	Result
George Davies	1000	1 - 0
Lawrence Nash	1250	1 - 0
John Scott	1400	0 - 1
Sebastian Burford	1338	0 - 1
Martin Jordan	1180	1 - 0
Matt Davies	1200	1 - 0
Don Richards	1381	1 - 0
John L Clarke	1341	0 - 1

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

1361 = (10090 + 400 * (5 - 3)) / 8)