Event: Crewe Longplay - Division 2

Opponent Rating Result
Dylan Sayers 91 0 - 1
Nigel Gardner 85 0 - 1
Philip Wright 71 ½ - ½
Les Hall 80 ½ - ½
George P Jelliss 73 ½ - ½
Lukasz Michalek 88 0 - 1
Neville S Jones 100 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-87 = (588 + 400 * (0 - 3)) / 7)

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