Event: Silver Rook

PDF Excel

Opponent	Rating	Result
Adam Routledge	150	0 - 1
Peter Gray	112	1 - 0
Ranyl W Hughes	89	1 - 0
Richard White	118	½ - ½

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

217 = (469 + 400 * (2 - 1)) / 4)