Event: Hammersmith Rockhammer Cup

PDF Excel

Opponent	Rating	Result
Harry Gardener	0	0 - 1
Harry Gardener	0	0 - 1
Harry Gardener	0	0 - 1
Ahmed Elwakil	1168	0 - 1
Leo Kowalski Rubiales	1304	0 - 1
Cedric Demarcus	1232	0 - 1
Ahmed Elwakil	1168	0 - 1
Yousef Elwakil	889	1 - 0
Hussein Elwakil	0	1 - 0

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

418 = (5761 + 400 * (2 - 7)) / 9)