Event: Rapidplay Championship

PDF Excel

Opponent	Rating	Result
Petru Floresc	1975	0 - 1
Stuart E Hull	1307	1 - 0
Railton W Hyde	1555	0 - 1
Ernest Wilkinson	1367	0 - 1
Glyn D Valentine	1690	0 - 1
Christopher Brian	1165	0 - 1
Stephen J Emmerton	1607	1 - 0

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

1352 = (10666 + 400 * (2 - 5)) / 7)