Event: Division 2

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Opponent Rating Result
John Vernon 1300 0 - 1
Thomas Rudkins 1200 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1250 = (2500 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
James Storrie-Baxter 1600 0 - 1
Rowan Eccleston 1240 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1020 = (2840 + 400 * (0 - 2)) / 2)