Event: Lytham Summer Tournament

PDF Excel

Opponent	Rating	Result
Kit W Hopkins	179	0 - 1
Peter A Wilson	145	0 - 1
Patrick N Coleman	108	0 - 1
John Regan	112	0 - 1
Roy Ellames	198	0 - 1

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

-252 = (742 + 400 * (0 - 5)) / 5)