Event: Ladder

Opponent Rating Result
Hector Glyn-Jones 0 0 - 1
Paul W O'Brien 0 0 - 1
David W Bennett 0 ½ - ½
Keith Homeyard 0 0 - 1
David W Bennett 0 0 - 1
David Wallis 0 1 - 0
Ben Glyn-Jones 0 1 - 0
Philip Crompton 0 0 - 1
Don Banks 0 0 - 1
David Wallis 0 0 - 1
Paul W O'Brien 0 0 - 1
Hector Glyn-Jones 0 0 - 1
Keith Homeyard 0 0 - 1
Philip Crompton 0 0 - 1
Lawrence Rhodes 0 0 - 1
Nicholas H Skinner 0 0 - 1
Charlie Giles 0 0 - 1
Keith Homeyard 0 0 - 1
Keith Homeyard 0 0 - 1
Ben Glyn-Jones 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-300 = (0 + 400 * (2 - 17)) / 20)

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