Event: NSDCA Division 3

Opponent Rating Result
Oskar Jarzynski 1493 ½ - ½
David A Hallen 1474 1 - 0
Ewan Corden 1256 0 - 1
S Ali Arshad 1206 1 - 0
Jim Leech 1249 1 - 0
Gennady Tabala 1200 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1513 = (7878 + 400 * (4 - 1)) / 6)

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