Event: TCL Division 4

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Opponent Rating Result
E Alan Crickmore 101 ½ - ½
Trevor Hurt 84 0 - 1
Richard Brenton 80 0 - 1
Dorothy Dawson 28 1 - 0
Anthony Tatam 90 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-83 = (383 + 400 * (1 - 3)) / 5)

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