Strikeouts per nine innings
From BR Bullpen
(Redirected from Strikeouts per nine innings ratio)
| Abbreviations | K/9, K/9IP |
| Type | Pitching |
| Components | strikeouts, innings pitched |
| Formula | |
|---|---|
| K / 9 = (K * 9) / IP | |
Strikeouts per nine innings pitched is a statistic measuring the average number of strikeouts (K) by a pitcher in nine innings pitched (IP).
| All Time Leaders | |||
|---|---|---|---|
| Span | Player | Total | Notes |
| Career | Robbie Ray | 11.12 | |
| Season | Shane Bieber | 14.20 | 2020* |
| Gerrit Cole | 13.82 | 2019 | |
| 1000 inning minimum for career | |||
| *2020 was shortened to 60 games; Bieber pitched only 77 1/3 innings | |||
We're Social...for Statheads
Every Sports Reference Social Media Account
Site Last Updated:
Question, Comment, Feedback, or Correction?
Subscribe to our Free Email Newsletter
Subscribe to Stathead Baseball: Get your first month FREE
Your All-Access Ticket to the Baseball Reference Database
Do you have a sports website? Or write about sports? We have tools and resources that can help you use sports data. Find out more.