WWSF from CO

Overview

WWSF (Win When Saw Flop) is the win rate after seeing the flop, measured from the CO (Cutoff). It reflects a player's post-flop performance from that position. This metric is calculated by dividing the number of hands in which the player saw the flop and eventually won the pot, independent of pre-flop actions, focusing solely on post-flop skills.

Interpretation

Generally, a higher WWSF indicates stronger post-flop decision-making, effectively leveraging position and hand strength. A typical tight-aggressive player should have a WWSF above 45% from the CO, while below 40% may signal significant post-flop leaks, such as over-bluffing or excessive folding. However, it must be evaluated alongside overall style: a loose-aggressive player may have a lower WWSF due to more pots contested, yet still be profitable.

Influencing Factors

• Position Advantage: The CO has relatively late position post-flop (only earlier than the BTN), which helps in controlling the pot and bluffing.
• Pre-flop Range: A wider opening range will lower WWSF; a narrower range increases it.
• Post-flop Strategy: Aggressive continuation betting, reasonable semi-bluffs, and accurate river value bets can boost WWSF.

Relationship with Other Metrics

• VPIP/PFR: High VPIP often correlates with lower WWSF, as more marginal hands enter the pot.
• AF (Aggression Factor): High AF combined with high WWSF suggests the player effectively applies pressure post-flop and wins.
• WTSD / W$SD: WWSF ≈ WTSD × W$SD, but this is not an exact equation. WTSD (Went to Showdown) and W$SD (Win at Showdown) jointly influence WWSF.

Practical Advice

Regularly review your WWSF from the CO. If below 40%, examine post-flop decisions: Are you folding too often to raises? Over-bluffing on turn and river? Increasing your flop c-bet frequency (against opponents with high fold rates) and value betting more frequently in position usually improves this metric.