Event: Rook 2018-19

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Opponent	Rating	Result
Lucy Bennet-Stevens	172	½ - ½
Paul Richardson	145	1 - 0
W John Marshall	143	1 - 0
Alex B Taylor	156	½ - ½
Anthony RJ Higgs	176	0 - 1
James C Mansson	195	0 - 1
David N Roberts	166	½ - ½

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

165 = (1153 + 400 * (2 - 2)) / 7)