Event: Silver Rook

PDF Excel

Opponent	Rating	Result
Adam Majewski	1397	0 - 1
Francis J Bowers	1886	0 - 1
Dennis Browning	1918	0 - 1
Adam Majewski	1439	0 - 1

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

1260 = (6640 + 400 * (0 - 4)) / 4)