Event: Silver Rook

PDF Excel

Opponent	Rating	Result
Jacob Smith	1647	0 - 1
Peter Catt	1765	0 - 1
Isobel Stetter	1758	1 - 0
Mark Leatham	1554	1 - 0
Nick Mullan	1531	0 - 1

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

1571 = (8255 + 400 * (2 - 3)) / 5)