Event: OTB Blitz Championship

PDF Excel

Opponent	Rating	Result
Jay Sharman	1655	0 - 1
Nigel White	1426	0 - 1
Huw D Jacob	1627	0 - 1
Davide Segat	1502	0 - 1
James Walsh	1300	0 - 1
Karun Suresh	0	1 - 0
Ryan Colclough	1652	1 - 0

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

1137 = (9162 + 400 * (2 - 5)) / 7)