OPS (chessmaster)?

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LastImpression

This might be a noobish question (it probably is, so my apologies beforehand), but when I'm playing Tournament mode on CM and I look at the results/rankings, there's a column that says OPS with numbers. What does OPS stand for?

LastImpression

anyone?

Extractum11

I believe it means "opponents strength"

http://www.chess.com/forum/view/general/ournchess-ops-status-in-tournaments

http://forums.ubi.com/eve/forums/a/tpc/f/4221052685/m/3131008146?r=6811019146#6811019146