枪口+1位翻牌后获胜率（UTG+1 WWSF）
UTG+1 WWSF
Measures the frequency with which a player enters the flop from the UTG+1 position and ultimately wins.
Overview
UTG+1 WWSF is a composite statistic in poker data analysis that combines position (UTG+1) and post-flop win rate (WWSF). WWSF stands for Won When Saw Flop, indicating the percentage of hands in which the player ultimately wins the pot after seeing the flop, whether or not it goes to showdown. UTG+1 is the seat immediately after the under-the-gun position, an early position with a relatively tight range.
Calculation Method
WWSF = (Number of hands won after seeing the flop) / (Total number of hands where flop was seen) × 100%. This value is recorded specifically for hands played from the UTG+1 position, only counting those hands where the flop was seen.
Significance
A high WWSF typically indicates that the player makes high-quality decisions post-flop or enters pots with strong hands. Since UTG+1 is a disadvantageous position, it requires a stronger range and more precise post-flop skills. This metric helps evaluate a player’s post-flop performance in early position.
Notes
WWSF is influenced by playing style: tight players tend to have higher WWSF because they only play strong hands. However, the data is unreliable when the sample size is too small.