Event: Div 1 - Davy Trophy

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Opponent Rating Result
Peter Ackley 2107 ½ - ½
Andrew J Ledger 2335 ½ - ½
Jim Burnett 2156 ½ - ½
Peter Ackley 2107 ½ - ½
Jim Burnett 2156 1 - 0
Javier Nicolas Zapata 0 0 - 1
Jonathan A Tait 2175 ½ - ½
Oliver Graham 1937 ½ - ½
Oskar A Hackner 2375 ½ - ½
Ayodeji Jeje 2122 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1987 = (19470 + 400 * (2 - 1)) / 10)

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