Event: 2021 Manx Championship

PDF Excel

Opponent	Rating	Result
Neil T Davies	0	1 - 0
Kyle Cross	0	1 - 0
Ben Bosworth	0	1 - 0
Keith Allen	0	1 - 0
Alan Ormsby	0	½ - ½

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

320 = (0 + 400 * (4 - 0)) / 5)