Event: Division 2 - Under 6800

Opponent Rating Result
Catherine Black 1768 1 - 0
David J Archer 1997 0 - 1
Bradley Holland 1579 1 - 0
Paul Brooks 1855 1 - 0
Jun Li Yeap 1710 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2022 = (8909 + 400 * (4 - 1)) / 5)

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