Event: Derby & District Division 1

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Opponent	Rating	Result
John C Tompson	2070	½ - ½
Andrew Stevens	1951	½ - ½
Anthony L Natt	1896	1 - 0
John Molyneux	2136	½ - ½
Peter Ackley	2030	1 - 0
Andy Townsend	1892	1 - 0
Anthony L Natt	1896	1 - 0
Peter Ackley	2030	½ - ½

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

2188 = (15901 + 400 * (4 - 0)) / 8)