Event: Division A

PDF Excel

Opponent	Rating	Result
Cliff H Rutlidge	157	½ - ½
Peter E Jowett	187	0 - 1
Ian Williamson	145	½ - ½
William O'Rourke	154	1 - 0
John Whitfield	159	1 - 0
James Carrington	151	1 - 0
Martin Lythgoe	164	1 - 0

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

331 = (1117 + 400 * (4 - 1)) / 7)