HOW OFTEN DO NHL GAMES END BY ONE GOAL?

Nearly half of all NHL games are decided by a single goal. This fundamental characteristic of hockey shapes the entire puck line betting market — and understanding the data is essential for any serious bettor.

By the PuckLineBetting.com editorial team · Updated March 2026

THE HISTORICAL PERCENTAGE OF 1-GOAL NHL GAMES

Based on 10 seasons of NHL data (2015–2025), approximately 48–52% of all regular-season games are decided by a single goal when you include overtime and shootout results. In regulation alone, roughly 22–25% of games finish with a 1-goal margin.

This isn't a recent anomaly — it's a structural feature of ice hockey. The sport averages just 5.5–6.5 total goals per game, meaning individual goals carry enormous weight. Every goal swings the outcome more than in any other major North American sport.

For bettors, this is the single most important number in puck line betting. It explains why the +1.5 underdog covers so frequently and why -1.5 favorites get plus-money odds.

NHL SCORING MARGIN DISTRIBUTION

10-year average, 2015–2025 regular seasons

Scoring Margin	Frequency	Puck Line Implication
1-goal games (incl. OT/SO)	48–52%	+1.5 always covers
1-goal games (regulation only)	22–25%	Close games decided in 60 min
2-goal games	20–22%	Minimum margin for -1.5 to cover
3+ goal games	22–28%	Comfortable -1.5 covers; blowout territory

HOW OVERTIME AFFECTS THE NUMBER OF 1-GOAL GAMES

Overtime is the single biggest driver of 1-goal game statistics. Approximately 22–24% of NHL regular-season games go beyond regulation, and every one of those games ends with exactly a 1-goal margin — whether decided in the 3-on-3 overtime period or a shootout.

The NHL's overtime format virtually guarantees this outcome. The 5-minute 3-on-3 period produces fast, open hockey where goals come quickly, but the winning team only gains a single-goal edge. Shootouts, by definition, also produce a 1-goal final margin. There is no way for overtime or a shootout to end with a 2-goal difference.

This structural reality means the +1.5 puck line automatically covers in nearly a quarter of all games before you even consider regulation 1-goal outcomes. It's the fundamental reason sportsbooks charge heavy juice (often -170 to -200) on the underdog +1.5 side.

~23%

GAMES REACHING OVERTIME

All of these games end with a 1-goal margin. The +1.5 side auto-covers; the -1.5 side auto-loses.

~48%

TOTAL 1-GOAL GAMES

Combining regulation and OT/SO, nearly half of all NHL games finish with a 1-goal difference.

THE IMPACT OF EMPTY-NET GOALS ON FINAL SCORE MARGINS

Empty-net goals are the counterforce to 1-goal games. When a trailing team pulls their goalie in the final 1–2 minutes, the leading team frequently scores into the empty net — converting what would have been a 1-goal game into a 2-goal margin on the final scoreboard.

Our analysis estimates that empty-net goals convert approximately 8–12% of would-be 1-goal outcomes into 2-goal margins. This has a direct and measurable impact on puck line results:

For -1.5 bettors: Empty-net goals are your friend. They push close games over the 2-goal threshold, boosting -1.5 cover rates by roughly 4–6 percentage points.
For +1.5 bettors: Empty-net goals are the enemy. Games that would have been comfortable covers become losses when a late empty-netter extends the margin.

Teams with aggressive goalie-pull strategies and strong defensive units generate more empty-net goals — a factor worth tracking when evaluating puck line strategy.

WHY SPORTSBOOKS SET THE PUCK LINE AT 1.5 GOALS

The 1.5-goal puck line isn't arbitrary — it's the mathematically optimal fixed spread for hockey. Here's why no other number works:

A 0.5-goal spread would be identical to the moneyline. Since hockey scores in whole numbers, a half-goal advantage just means "win or lose."
A 1.0-goal spread would create pushes in roughly 22% of games. Sportsbooks avoid pushes because they don't generate revenue.
A 2.5-goal spread would be too wide. Roughly 70–75% of games are decided by 2 or fewer goals, making -2.5 an extreme longshot.

The 1.5-goal line creates a balanced market: underdogs cover frequently but carry heavy juice, while favorites cover less often but pay plus money. Sportsbooks adjust the odds (juice) rather than moving the spread, which is what makes puck line pricing unique compared to football or basketball spreads.

WHY HOCKEY HAS MORE CLOSE GAMES THAN OTHER SPORTS

Hockey's scoring distribution is heavily compressed compared to other sports. While a football game might be decided by 20+ points, hockey rarely sees margins above 4 goals. Several structural factors drive this:

Goaltending Quality

Modern NHL goaltenders save over 90% of shots on average. Elite goaltenders can single-handedly keep lopsided games close. A .930 save percentage goalie facing 35 shots allows roughly 2.4 goals — keeping most games within striking distance regardless of territorial dominance.

Score Effects

Teams adjust their play based on the score. A team leading by 2 goals shifts to a defensive posture, protecting the lead. Trailing teams take more risks, leading to either a comeback or a late empty-net goal. This natural equilibrium compresses final margins toward 1–2 goals.

Salary Cap Parity

The salary cap era has created significant competitive parity. Even the worst team in the league beats the best team roughly 30% of the time — a far higher upset rate than in basketball or football. This parity means blowouts are rare and close games are the norm.

HOW BETTORS INTERPRET THIS DATA FOR PUCK LINE BETTING

Understanding the frequency of 1-goal games is the foundation of smart puck line strategy. Here's how sharp bettors apply this data:

Underdog +1.5 value: Since ~48–52% of games end by 1 goal, the +1.5 underdog has a built-in safety net. But heavy juice (-170 to -200) means you need a high hit rate to profit. Bettors look for spots where the implied probability from odds is lower than the actual cover rate.
Favorite -1.5 as a value play: Favorites cover -1.5 roughly 30–35% of the time, but plus-money odds (+130 to +180) mean you don't need to win often to profit. The key is identifying matchups where the true cover probability exceeds the implied probability.
Empty-net goal tracking: Teams with strong defensive records and aggressive goalie-pull tendencies convert more 1-goal leads into 2-goal wins. This directly boosts -1.5 cover rates for those teams.
Situational analysis: Playoff games produce even tighter margins (55–60% ending by 1 goal), making +1.5 underdogs even stronger in the postseason.

Use our puck line calculator to convert odds into implied probabilities and identify where the market may be mispricing the frequency of 1-goal outcomes.

THE BOTTOM LINE

The high frequency of 1-goal games is the single most important factor in puck line betting. It drives why +1.5 covers so often, why -1.5 pays plus money, and why understanding alternate puck lines requires knowing the full goal-margin distribution. Combine this data with disciplined strategy and our calculator to make informed decisions.

FREQUENTLY ASKED QUESTIONS

HOW OFTEN DO NHL GAMES END WITH A 1-GOAL MARGIN?

Approximately 48–52% of all NHL regular-season games end with a 1-goal margin when including overtime and shootout results. In regulation only, roughly 22–25% finish with a 1-goal difference.

WHY IS THE PUCK LINE SET AT 1.5 GOALS?

The 1.5-goal puck line exists because hockey is a low-scoring sport where nearly half of all games are decided by a single goal. A 0.5-goal spread would be identical to the moneyline, while 2.5 would be too wide for most games.

DO EMPTY-NET GOALS AFFECT ONE-GOAL GAME STATISTICS?

Yes. Empty-net goals convert roughly 8–12% of would-be 1-goal games into 2-goal margins. Without empty-net goals, the percentage of 1-goal games would be even higher.