Event: Division 1

PDF Excel

Opponent	Rating	Result
Ian A Robson	193	0 - 1
Tristram De Piro	164	0 - 1
Rob E Wilden	143	½ - ½
Michael Ashworth	198	0 - 1
Graham D Neville	152	½ - ½
Philip J Meade	163	0 - 1
Magdi Idris	0	0 - 1

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

-141 = (1013 + 400 * (0 - 5)) / 7)