Event: Division 4 - Under 6000

Opponent Rating Result
Alan H Davies 1484 0 - 1
Jack Chen 1452 0 - 1
Lance Howarth 1229 1 - 0
Jude Brassington 1019 1 - 0
Muhammad Kausar 1357 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1228 = (6541 + 400 * (2 - 3)) / 5)

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