Event: SCCA Division 3 19/20

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Opponent	Rating	Result
Samuel Gaffney	139	½ - ½
Henry May	79	1 - 0
Peter T Housden	101	0 - 1
Peter J Collicott	112	1 - 0
Matt Carter	105	0 - 1
Edgar Nightingale	104	½ - ½
Ken Lunn	115	0 - 1

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

51 = (755 + 400 * (2 - 3)) / 7)