PFR from CO

Overview

PFR from CO is a statistical indicator in Texas Hold'em that measures a player's tendency to raise pre-flop from the Cutoff (CO) position. PFR stands for Pre-Flop Raise, which refers to the frequency of actively raising (including open-raising and re-raising) before the flop; CO is the abbreviation for Cutoff, the position to the right of the Button (BTN), generally considered the second-best position at the table (only behind the Button).

Strategic Significance

The CO position, due to always acting last post-flop (only the Button acts after it), allows players to leverage positional advantage to widen their raising range. A typical PFR from CO range is usually wider than from early positions (UTG, MP), including medium pairs, suited connectors, Axs, etc. A reasonable PFR value from the CO position (e.g., 20%-30%) reflects a player's ability to effectively exploit the tight-weak ranges of players in later positions while avoiding being re-raised by the Button or the blinds.

Influencing Factors

• Stack Depth: When deep-stacked, the CO can widen the raising range and utilize implied odds; when short-stacked, the range tightens.
• Opponent Style: If the blinds have a high fold rate, the CO can increase raising frequency; if the Button frequently 3-bets, adjustments are needed.
• Dynamic Adjustment: Under ICM pressure in the late stages of tournaments, the CO's PFR may decrease; in cash games, more focus is on exploitation.

Data Statistics

In online HUD (Heads-Up Display), PFR from CO is often presented as a percentage, and a sample size of at least 100 hands is needed for it to be statistically significant. Professional players' PFR from CO is typically higher than the table average PFR, but the specific value varies by game type (6-max vs 9-max).