Event: Quickplay KO 2019-20

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Opponent	Rating	Result
Lucy Bennet-Stevens	149	0 - 1
Lucy Bennet-Stevens	149	0 - 1
Guy Turvey	143	1 - 0
Guy Turvey	143	1 - 0
Richard Slade	93	1 - 0
Richard Slade	93	0 - 1
Richard Slade	93	1 - 0
Ian S Comley	143	1 - 0
Ian S Comley	143	½ - ½
Anthony RJ Higgs	184	0 - 1
Anthony RJ Higgs	184	0 - 1

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

138 = (1517 + 400 * (5 - 5)) / 11)