Event: South Cheshire Shield

PDF Excel

Opponent	Rating	Result
Gerald Parton	1218	½ - ½
Tony Rossiter	1250	1 - 0(def)
Gwyn Price	1006	0 - 1

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

912 = (2224 + 400 * (0 - 1)) / 2)