BTTS explained: what both teams to score means, and how often it landed in 21 Premier League seasons
TL;DR: BTTS stands for both teams to score. Yes wins if each team scores at least once in 90 minutes plus stoppage time, and No wins if either team fails to score. In 7,980 Premier League matches from 2005/06 to 2025/26, both teams scored in 51.