What is a Shutout in Baseball
A shutout in baseball occurs when a team's pitching staff allows zero runs throughout an entire game — if a single pitcher completes the game without allowing a run, it is recorded as an individual shutout for that pitcher.
A shutout in baseball occurs when one team's pitching completely holds the opposing team scoreless for an entire game — zero runs allowed over all nine innings (or more in extra innings). When a single pitcher goes the distance and shuts out the opposing team, it is counted as an individual pitcher's shutout in official statistics. If multiple pitchers combine to hold the opponent scoreless, it is referred to as a combined shutout — no individual pitcher receives the shutout credit.
Individual Pitcher Shutout Requirements
For a pitcher to be credited with a shutout (SO), they must:
- Start the game (they must be the starting pitcher)
- Pitch the entire game — all nine innings (or however many are played)
- Allow zero earned runs — and in practice, zero runs of any kind (unearned or otherwise), as surrendering any run ends the shutout
A pitcher who throws a shutout and also wins the game may be credited with both a complete game shutout and a win.
Shutouts and No-Hitters
| No-Hitter | Shutout | |
|---|---|---|
| Definition | Zero hits allowed | Zero runs allowed |
| Relationship | A no-hitter is almost always a shutout | A shutout does NOT require zero hits |
| How often | Very rare (~5–10 per MLB season) | Rare but more common (~50–100 per season) |
A no-hitter automatically produces a shutout — you can't score if you don't get on base. But a pitcher can throw a shutout while allowing hits (as long as no runner scores).
A perfect game — no hits, no walks, no hit batters, no errors — is both a no-hitter and a shutout by definition.
How Rare Are Shutouts?
Shutouts have become increasingly rare in the modern game. Contributing factors:
- Starting pitchers go fewer innings — pitch counts, injury prevention, and bullpen specialization mean starters rarely finish games
- Offensive evolution — higher average exit velocities and launch angles mean fewer scoreless games
- Roster construction — teams prefer using multiple relievers rather than letting the starter tire
In the first half of the 20th century, complete game shutouts were common. Today, a pitcher throwing 8 innings is newsworthy. A complete game shutout from a starter happens fewer than 50 times per MLB season.
Famous Shutout Performances
- Bob Gibson, 1968 — Posted 13 shutouts in a single season (his legendary 1.12 ERA season)
- Walter Johnson — 110 career shutouts, the all-time MLB record
- Clayton Kershaw — Multiple dominant individual shutout performances in the modern low complete-game era
- Roy Halladay — Known for complete game mastery; led MLB in shutouts multiple times in the 2000s–2010s
- Don Drysdale, 1968 — Threw a then-record 58 consecutive scoreless innings, spanning six consecutive shutouts
Career Shutout Leaders
| Rank | Pitcher | Shutouts |
|---|---|---|
| 1 | Walter Johnson | 110 |
| 2 | Grover Cleveland Alexander | 90 |
| 3 | Christy Mathewson | 79 |
| 4 | Cy Young | 76 |
| 5 | Eddie Plank | 69 |
The top of the all-time shutout list is dominated by pitchers from the Dead Ball Era (pre-1920s), when scoring was far lower and complete games were the norm.
Combined Shutouts
A combined shutout — when two or more pitchers combine to hold the opponent scoreless — is credited in team records but not to any individual pitcher. As bullpen usage has increased, combined shutouts now outnumber individual pitcher shutouts significantly in modern baseball.