Event: Wellington Club IT

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Opponent Rating Result
Alan A Stonebridge 111 ½ - ½
Adrian N Walker 140 0 - 1
Gregor Fotheringham 126 ½ - ½
Gregor Fotheringham 126 ½ - ½
John Jeremiah 109 0 - 1
Adrian N Walker 140 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-75 = (752 + 400 * (0 - 3)) / 6)

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