Event: Worcestershire Rapidplay league

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Opponent	Rating	Result
Joe Rastall	1700	1 - 0
Jonathon Vaughan	2043	1 - 0
Joe Conway- Lees	1688	0 - 1
John Foxall	1728	1 - 0
Joe Rastall	1700	1 - 0
Joe Conway- Lees	1688	½ - ½
John Foxall	1728	1 - 0
Jonathon Vaughan	2043	1 - 0

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

2040 = (14318 + 400 * (6 - 1)) / 8)