CO WTSD

Overview

CO WTSD stands for "Cutoff Went to Showdown." It is a statistic commonly used in online poker HUDs (Heads-Up Displays) to track a player's behavior from the cutoff position (one seat to the right of the button). The stat represents the frequency with which a player, after seeing the flop from the cutoff, continues to the showdown rather than folding on the flop, turn, or river.

How It Is Calculated

The formula for CO WTSD is:

CO WTSD = (Number of hands from cutoff that went to showdown) / (Number of hands from cutoff that saw the flop) × 100%

Only hands where the player voluntarily put money into the pot preflop from the cutoff and saw the flop are counted. Preflop folds or blinds that check are excluded. The stat is position-specific, so it only reflects actions taken when the player is in the cutoff.

Interpretation

A high CO WTSD (e.g., above 40%) suggests a player is willing to call down or bet/showdown frequently from the cutoff. This can indicate a tendency to play marginal hands or to be a calling station postflop. A low CO WTSD (e.g., below 25%) implies the player folds often after the flop, perhaps relying on continuation bets and giving up when they miss.

Typical values vary by game type and player pool. In 6-max cash games, a balanced CO WTSD might be around 30-35%. Extremely low or high values can be exploited:

• Low CO WTSD: Opponents can float or raise turns more aggressively, knowing the cutoff player will fold weak holdings.
• High CO WTSD: Opponents should value-bet thin and avoid bluffing rivers, as the cutoff caller is unlikely to fold.

Usage in Strategy

CO WTSD is often used in conjunction with other stats like VPIP (Voluntarily Put Money In Pot) and PFR (Preflop Raise) to gauge a player's postflop tendencies. For example, a player with a high VPIP and high CO WTSD is likely a loose-passive fish, while a player with a low VPIP and low CO WTSD may be a tight-aggressive player who gives up easily when the flop doesn't hit.

Example: A tight-aggressive opponent in the cutoff has a CO WTSD of 22%. You can exploit this by continuation betting frequently on dry boards and double-barreling when you hold draws, as they will fold most of the time.

Limitations

• CO WTSD is sample-size dependent. A player may have abnormally high or low values over a small number of hands due to variance.
• It does not distinguish between hands where the player was the aggressor (raiser/bettor) versus the caller. A player who raises often from the cutoff and goes to showdown with strong hands will have a different WTSD than a passive caller.
• The stat only applies to cutoff position; it should not be used to infer general postflop play from other positions.

Conclusion

CO WTSD is a valuable positional statistic for understanding an opponent's willingness to continue postflop from the cutoff. When combined with other HUD data, it helps in forming exploitative strategies, especially in cash games and tournaments with sufficient hand histories.