⚾ Pitcher Statistics
Enter number of walks (0 or more).
Base on balls issued by the pitcher
Enter number of hits allowed (0 or more).
Total hits given up (singles, doubles, triples, HRs)
IP
Enter innings pitched (e.g. 120.1 for 120 and 1 out).
Use .1 for 1 out, .2 for 2 outs (e.g. 85.2)
Include for advanced WHIP+ variant (not standard)
WHIP
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Sources & Methodology
WHIP formula and MLB benchmark values verified against Baseball Reference season logs and MLB Statcast database. April 2026.
Baseball Reference — Pitching Statistics Glossary
Official source for WHIP definition, formula, and historical season values. MLB career and single-season WHIP records used for benchmark comparisons.
MLB Baseball Savant — Statcast Data
MLB Statcast database used for 2026 league average WHIP benchmarks and pitcher performance comparisons referenced in the content section.
Methodology:
WHIP = (Walks + Hits) / Innings Pitched
Partial innings converted to decimal: .1 = 1/3 = 0.333, .2 = 2/3 = 0.667. Example: 85.2 IP = 85.667. WHIP+ (advanced): (Walks + Hits + HBP) / IP. Rating thresholds: Elite < 1.00, Excellent 1.00–1.10, Above Average 1.10–1.25, Average 1.25–1.40, Below Average > 1.40. MLB league average 2026: approximately 1.26.
Last reviewed: April 2026
How Is WHIP Calculated in Baseball?
WHIP (Walks plus Hits per Inning Pitched) is one of the most fundamental pitching statistics in baseball. It answers one question directly: how many baserunners does a pitcher allow per inning? A pitcher who consistently limits baserunners gives the defense fewer opportunities to allow runs. WHIP was popularized in the 1970s and is now a core stat in fantasy baseball, MLB analysis, and player evaluation at every level.
WHIP = (Walks + Hits) / Innings Pitched
Example: Pitcher allows 45 walks and 87 hits in 120.1 innings.
IP decimal = 120 + (1/3) = 120.333
WHIP = (45 + 87) / 120.333 = 132 / 120.333 = 1.097
Rating: Excellent (between 1.00 and 1.10)
IP decimal = 120 + (1/3) = 120.333
WHIP = (45 + 87) / 120.333 = 132 / 120.333 = 1.097
Rating: Excellent (between 1.00 and 1.10)
WHIP Rating Scale for MLB Pitchers
| WHIP Range | Rating | Comparable MLB Level |
|---|---|---|
| Below 0.90 | Historic / All-Time | Pedro Martinez 2000 (0.737), Kershaw 2014 (0.857) |
| 0.90 – 1.00 | Elite | Top 5 starters in the league that season |
| 1.00 – 1.10 | Excellent | All-Star caliber starter |
| 1.10 – 1.25 | Above Average | Solid No. 2–3 starter |
| 1.25 – 1.40 | Average | Back-of-rotation starter, good reliever |
| 1.40 – 1.60 | Below Average | Struggling starter, replaceable |
| Above 1.60 | Poor | Roster concern, likely to be replaced |
How to Handle Partial Innings in WHIP
When a pitcher leaves with runners on base, partial innings are recorded as .1 (one out recorded) or .2 (two outs recorded). To convert to decimals for WHIP calculation, use the fact that each out is one-third of an inning: .1 IP = 0.333, .2 IP = 0.667. So 7.1 innings = 7.333 and 7.2 innings = 7.667. The calculator above handles this conversion automatically.
WHIP vs ERA: Which Is More Predictive?
ERA measures runs allowed per nine innings and is heavily influenced by fielding, park factors, and the sequencing of hits and walks. WHIP is a more direct measure of pitcher control because it counts baserunners regardless of whether they score. Modern pitching analysts often prefer FIP (Fielding Independent Pitching) and xFIP as the most predictive single-season stats, but WHIP remains one of the easiest to understand and track.
💡 Fantasy baseball tip: When comparing pitchers for fantasy, target starters with a WHIP below 1.20. A WHIP difference of 0.10 between two pitchers adds up significantly over a full season — roughly 16 to 18 extra baserunners over 160 innings, directly affecting your league standing in the WHIP category.
Frequently Asked Questions
WHIP stands for Walks plus Hits per Inning Pitched. It measures how many baserunners a pitcher allows per inning. Lower is better. Formula: WHIP = (BB + H) / IP. A WHIP of 1.00 means one baserunner per inning. The MLB league average is typically around 1.25 to 1.30.
WHIP = (Walks + Hits) / Innings Pitched. For 45 walks and 87 hits over 120.1 innings: convert 120.1 to 120.333 (one out = 0.333 innings), then WHIP = 132 / 120.333 = 1.097. The calculator above handles partial inning conversion automatically.
In MLB, under 1.00 is elite, 1.00 to 1.10 is excellent, 1.10 to 1.25 is above average, 1.25 to 1.40 is average, and above 1.50 is below average. The MLB league average is around 1.25 to 1.30. For fantasy baseball, targeting pitchers with WHIP below 1.20 is the standard benchmark.
No. Standard WHIP only counts walks and hits. Hit batsmen (HBP) are excluded. Some advanced analysts use WHIP+ or modified versions that include HBP for a more complete picture of baserunners allowed. The traditional WHIP used in MLB statistics, Baseball Reference, and fantasy baseball databases only includes BB + H.
Convert partial innings to decimals: .1 IP = 0.333, .2 IP = 0.667. So 85.1 innings = 85.333 and 85.2 innings = 85.667. Divide total (walks + hits) by the decimal IP value. The calculator above does this automatically when you enter innings in standard format like 120.1 or 85.2.
The MLB league average WHIP has typically ranged from 1.25 to 1.35 over the past decade. In 2023 it was approximately 1.26. Pitching-dominant eras had lower league averages, while offense-heavy eras had higher ones. A starter with a WHIP near the league average is performing at a replacement level for fantasy purposes.
Pedro Martinez holds the modern era record with 0.737 WHIP in 2000 over 217 innings. Addie Joss holds the all-time career WHIP record at 0.968 (1902-1910). Clayton Kershaw achieved 0.857 in 2014. Any WHIP below 0.90 over a full season starter workload is extraordinarily rare and signals a historically dominant performance.
Both measure different things. ERA measures runs per nine innings and is affected by fielding and sequencing luck. WHIP measures baserunners per inning directly. WHIP is often more predictive of future performance. Modern analytics prefer FIP and xFIP as the most predictive stats, but WHIP remains the easiest to track and compare across pitchers of all levels.
For youth baseball (ages 10 to 14), a WHIP under 1.50 is strong. For high school varsity level, under 1.30 is good and under 1.10 is excellent. College pitchers who project as MLB prospects typically show WHIPs between 1.00 and 1.25. Standards are lower at each level because hitters are less skilled, so WHIP thresholds shift accordingly.
WHIP is one of the five standard pitching categories in most fantasy leagues. A pitcher with WHIP under 1.15 provides significant category value. A WHIP difference of 0.10 over a full season equals roughly 16 to 18 extra baserunners per 160 innings, which meaningfully impacts your category standing. Always factor WHIP when streaming pitchers or making adds and drops.
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