Event: Derby & District Division 1

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Opponent	Rating	Result
Andrew Stevens	1951	1 - 0
David Hatton	1791	1 - 0
John Molyneux	2136	½ - ½
John M Potter	2153	0 - 1
Anthony L Natt	1896	½ - ½
John M Potter	2153	½ - ½
Steve P Retout	2021	1 - 0

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

2129 = (14101 + 400 * (3 - 1)) / 7)