Event: League Division 2

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Opponent	Rating	Result
Jeff Dutton	1563	1 - 0
David Summerland	1522	1 - 0
Stephen Burton	1495	0 - 1
Bernie T Hare	1827	½ - ½
Jon Jordan	1620	1 - 0
Bernie T Hare	1827	0 - 1
Paul Hardy	1543	½ - ½
Liam Kennedy	1375	0 - 1

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

1597 = (12772 + 400 * (3 - 3)) / 8)