Event: Division 2 - Weston Trophy

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Opponent	Rating	Result
Andrew J Ledger	224	0 - 1
John R Mercy	153	1 - 0
David Watson	145	1 - 0
Ken A McIntosh	145	0 - 1
Andrew Hards	172	1 - 0
Alan S McIntosh	150	½ - ½
Andrew Hards	0	0 - 1

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

141 = (989 + 400 * (3 - 3)) / 7)