Event: Jim Barrington Trophy

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Opponent	Rating	Result
Haydyn Briggs	1300	1 - 0
Andrew Tighe	1000	0 - 1
Frank C Jimenez	1587	0 - 1

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

1162 = (3887 + 400 * (1 - 2)) / 3)