Event: Division 1

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Opponent	Rating	Result
Scott Riley	164	½ - ½
Eric Mansfield	108	½ - ½
Dave Gaston	127	½ - ½
Harrison Crook	76	1 - 0
Brian Smith	174	½ - ½
Ian Williamson	137	1 - 0
Keith Melling	109	½ - ½
Gordon L Glover	117	½ - ½
John H Schofield	151	1 - 0

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

263 = (1163 + 400 * (3 - 0)) / 9)