Event: Division 2

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Opponent	Rating	Result
R Andrew Hebert	153	½ - ½
John S Shaw	139	½ - ½
Sam Clayton	124	1 - 0
Robert H Willoughby	125	0 - 1
Grenville Wollerton	135	0 - 1
Nigel Wright	135	1 - 0
Graham Neil	122	½ - ½
Jim Wellington	109	½ - ½
Wallace M Bryce	106	1 - 0

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

172 = (1148 + 400 * (3 - 2)) / 9)