Event: Division 1

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Opponent Rating Result
John Jarmany 2168 0 - 1
Howard R Hughes 2209 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1789 = (4377 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
K Hoadley 2043 ½ - ½
Steve J Horrocks 1943 0 - 1
Neil Taylor 1597 1 - 0
Paul Fallon 1916 ½ - ½
Robert Grounds 1335 0 - 1
Andrew Hargreaves 1808 0 - 1
Andrew Jaques 1964 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1744 = (12606 + 400 * (2 - 3)) / 7)