Both teams to score (BTTS): a probability guide
By FootInsights · Published · Updated 26 Sep 2026 · 3 min read
Both teams to score asks a deceptively simple question: will neither side keep a clean sheet? Across the 17,495 finished matches in our dataset the answer was yes 53.2% of the time — another near coin-flip, which is why bookmakers like offering it.
BTTS is the mirror image of the clean sheet
The cleanest way to understand this market is to notice that it has an exact complement. If either team keeps a clean sheet, BTTS has lost. So:
- Both teams score: 53.2%
- At least one clean sheet: 46.8%
Those sum to 100 by construction, not by coincidence. Any source publishing BTTS and clean-sheet probabilities that do not sum to 100 for the same fixture is running two different models and telling you about neither.
Not Over/Under in disguise
The two markets overlap but measure different things, and conflating them is the most common BTTS mistake:
- 3-0 is Over 2.5 but not BTTS. A dominant win with a clean sheet splits the markets.
- 1-1 is BTTS but not Over 2.5. A cagey draw splits them the other way.
The correlation is strong, not perfect. BTTS is really a question about the weaker scoring side: it needs the underdog to find a goal. A mismatch can carry a high Over probability and a mediocre BTTS one at the same time.
Our own data shows how far the two can come apart at league level. The Eredivisie clears 2.5 goals 59.4% of the time but produces BTTS only 56.7% — a 2.7-point gap — because a large share of Dutch goals arrive in one-sided matches. The Bundesliga, scoring at a similar rate, has the two almost on top of each other at 61.0% and 60.1%. Same goals, different distribution.
The spread across leagues
| League | BTTS |
|---|---|
| Bundesliga | 60.1% |
| Eredivisie | 56.7% |
| Premier League | 55.3% |
| Ligue 1 | 55.0% |
| La Liga | 51.8% |
| Championship | 51.5% |
| Serie A | 51.3% |
| Brasileirão | 49.6% |
| Primeira Liga | 49.1% |
Eleven points from top to bottom. Portugal is the outlier worth knowing about: at 49.1% it has the lowest BTTS rate we record despite scoring more per match than Spain, because Portuguese goals concentrate on one side rather than being shared — the pattern set out in our Primeira Liga profile.
How a goal model prices it
The textbook route is a scoreline grid: BTTS “yes” is the sum of every cell where both teams have at least one goal. Priced that way, a model’s BTTS, totals and 1X2 numbers cannot contradict one another — a useful check on any site’s numbers, ours included.
A worked intuition, and why it surprises people
Take a match where we expect the home side to score 1.8 goals and the away side 0.9. Poisson puts the home team blanking about 17% of the time and the away team about 41%. Naively adding those overstates the “no” side, because both can blank in the same match; the grid handles the overlap properly and lands BTTS “yes” at roughly even money, just under 50%, despite the fixture being lopsided.
That gap between “who wins” and “who scores” is where BTTS value hides, when it exists at all — and it is the reason a strong favourite does not automatically imply a strong BTTS “no”.
Judge the tips, not the streaks
BTTS content online is dominated by streak-scanning: “BTTS landed in five of their last six.” Streaks are small samples of a noisy process — a model needs seasons, not weeks, as the arithmetic in our Brier score guide makes concrete.
Whatever source you use, apply the same test: probabilities shown up front, every call graded, sample sizes visible. Our BTTS tips show the probability on every Yes/No call, and the BTTS record sits on the track record with everything else, misses included.