Event: Division 4

PDF Excel

Opponent	Rating	Result
Freddie Vesey	1619	0 - 1
Leo Beacroft	1455	1 - 0
Adam G Spencer	1630	0 - 1
Jake Clayton	0	0 - 1
Robert Garnett	1585	0 - 1
Jim Wellington	1537	½ - ½
Joshua Towers	0	0 - 1

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

889 = (7826 + 400 * (1 - 5)) / 7)