Event: Division 1

PDF Excel

Opponent	Rating	Result
Andrew E James	133	½ - ½
Robert Ashworth	161	0 - 1
Patrick Baker	134	½ - ½
Rob E Wilden	153	½ - ½
Robert Ashworth	159	½ - ½

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

68 = (740 + 400 * (0 - 1)) / 5)