Event: Division 1 - Davy Trophy

Opponent Rating Result
Sue Y Maroroa 193 0 - 1
Peter Ackley 189 1 - 0
Jonathan A Tait 203 ½ - ½
Jonathan P Nelson 204 ½ - ½
Oskar A Hackner 209 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

120 = (998 + 400 * (1 - 2)) / 5)

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