Event: Division 4

PDF Excel

Opponent	Rating	Result
David Charters	1570	½ - ½
Michael J Gunn	1623	0 - 1
Archie Warren	1338	0 - 1

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

1244 = (4531 + 400 * (0 - 2)) / 3)