Event: LADDER

Opponent Rating Result
Jon Young 1424 1 - 0
David Wallis 1607 ½ - ½
Paul W O'Brien 1727 ½ - ½
David Wallis 1607 ½ - ½
David Wallis 1600 0 - 1
Graham Davie 1592 0 - 1
Keith Guinness 1795 ½ - ½
Ben Glyn-Jones 1379 ½ - ½
David Bradley 1373 1 - 0
Marcus Whiting 1445 0 - 1
Mark Cox 1076 1 - 0
Keith Guinness 1572 0 - 1
Ben Glyn-Jones 1400 0 - 1
David Bradley 1364 0 - 1
Mark Cox 1071 1 - 0
Peter Larwood 1898 0 - 1
Paul W O'Brien 1637 ½ - ½
Ben Glyn-Jones 1442 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1412 = (27009 + 400 * (4 - 8)) / 18)

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