What Tennis Moneyline Odds Actually Tell You
A moneyline on a tennis match shows two numbers — one for each player. A negative number like -180 means you'd need to wager $180 to return $100 in profit; that player is the favorite. A positive number like +150 means a $100 wager returns $150 profit; that player is the underdog. No point spread, no handicap — the line alone carries
the probability signal. Sportsbook oddsmakers set these numbers using head-to-head records, surface stats, and current form. When markets are live, lines shift as sets progress, so a player down a break may swing from -200 to a positive figure inside a few games. Knowing how to read that movement is where the real edge lives.