Event: June Swiss 2023 Challengers

Opponent Rating Result
Matthew J Morter 1558 0 - 1
Heather Enid Walker 1167 0 - 1
Stephen Livermore 1638 1 - 0(def)
Chris Flynn 1601 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1309 = (4326 + 400 * (1 - 2)) / 3)

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