Event: Douglas Championship

Opponent Rating Result
Glenn Cross 1762 0 - 1
James V Hodgson 1531 0 - 1
Callum Quirk 1450 1 - 0(def)
Joseph Saunders 1450 1 - 0
Ben Bosworth 1291 1 - 0
Neil T Davies 1919 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1511 = (7953 + 400 * (2 - 3)) / 5)

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