Event: NCCA League Division 4

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Opponent	Rating	Result
Colin Goodchild	1377	0 - 1
Matthew A Haines	1348	½ - ½
Paul J Coppard	1264	½ - ½
Tony Piper	1329	0 - 1
Sultan Muratkhanov	1300	1 - 0
Jacob Mulligan	1122	½ - ½
Tony Cane	1286	1 - 0

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

1289 = (9026 + 400 * (2 - 2)) / 7)