Event: Division 1 - Davy Trophy

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Opponent Rating Result
Ian Barwick 156 ½ - ½
David Ashcroft 155 0 - 1
Chew Heng 0 0 - 1
Alan S McIntosh 146 0 - 1
Joseph B Bradey 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-229 = (457 + 400 * (0 - 4)) / 5)

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