Event: GP3 - November

Opponent Rating Result
Janis Petersons 1808 0 - 1
Mick Sullivan 657 1 - 0
James Lumsden 1760 1 - 0
Luke Chapman 1856 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1520 = (6081 + 400 * (2 - 2)) / 4)

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