Event: Silver Rook

PDF Excel

Opponent	Rating	Result
Chris J Terrington	1547	1 - 0
Steve Westmoreland	1830	0 - 1
Andrew C Wainwright	1983	0 - 1
Steve J Mann	1796	0 - 1
Amelia Wheeler	1470	1 - 0
Robert Mitchell	1704	0 - 1

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

1588 = (10330 + 400 * (2 - 4)) / 6)