Spencer Strider has the highest K/9 by a starting pitcher with 100.0+ innings pitched in a season, with 13.84 per nine innings in his rookie season in 2022.
| NAME | K/9 | IP | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | S. Strider | 13.84 | 107.1 | 2022 | 20 | 10 | 4 | .714 | 20 | 2.77 | 165 | 0 | 0 | 0 | 72 | 33 | 36 | 7 | 34 | 3 | 0 | 1 | 433 | 5 | 2.85 | 4.85 | 0.59 | 38.1 | 7.9 | 0.99 | .290 | 3.02 | 6.04 | |
| 2 |  | G. Cole | 13.82 | 212.1 | 2019 | 33 | 20 | 5 | .800 | 33 | 2.50 | 326 | 0 | 0 | 0 | 142 | 59 | 66 | 29 | 48 | 3 | 0 | 0 | 817 | 4 | 2.03 | 6.79 | 1.23 | 39.9 | 5.9 | 0.89 | .275 | 2.80 | 6.02 | |
| 3 | | S. Strider | 13.55 | 186.2 | 2023 | 32 | 19 | 5 | .792 | 32 | 3.86 | 281 | 0 | 0 | 0 | 146 | 80 | 85 | 22 | 58 | 9 | 0 | 1 | 763 | 6 | 2.80 | 4.84 | 1.06 | 36.8 | 7.6 | 1.09 | .316 | 4.10 | 7.04 | |
| 4 |  | C. Sale | 13.50 | 158.0 | 2018 | 27 | 12 | 4 | .750 | 27 | 2.11 | 237 | 0 | 0 | 0 | 102 | 37 | 39 | 11 | 34 | 14 | 0 | 0 | 617 | 4 | 1.94 | 6.97 | 0.63 | 38.4 | 5.5 | 0.86 | .283 | 2.22 | 5.81 | |
| 5 | | C. Sale | 13.32 | 147.1 | 2019 | 25 | 6 | 11 | .353 | 25 | 4.40 | 218 | 1 | 1 | 0 | 123 | 72 | 80 | 24 | 37 | 13 | 0 | 0 | 612 | 2 | 2.26 | 5.89 | 1.47 | 35.6 | 6.0 | 1.09 | .309 | 4.89 | 7.51 | |
| 6 |  | P. Martinez | 13.22 | 208.1 | 1999 | 29 | 22 | 4 | .846 | 29 | 2.07 | 306 | 5 | 1 | 0 | 157 | 48 | 55 | 8 | 36 | 8 | 0 | 1 | 816 | 6 | 1.56 | 8.50 | 0.35 | 37.5 | 4.4 | 0.93 | .325 | 2.38 | 6.78 | |
| 7 |  | R. Johnson | 13.20 | 242.2 | 2001 | 34 | 20 | 6 | .769 | 34 | 2.56 | 356 | 3 | 2 | 0 | 180 | 69 | 74 | 19 | 70 | 18 | 0 | 2 | 971 | 8 | 2.60 | 5.09 | 0.70 | 36.7 | 7.2 | 1.03 | .317 | 2.74 | 6.68 | |
| 8 |  | J. Misiorowski | 12.98 | 174.2 | 2026 | 30 | 16 | 5 | .762 | 30 | 1.80 | 252 | 1 | 1 | 0 | 96 | 35 | 43 | 14 | 44 | 9 | 0 | 0 | 665 | 6 | 2.27 | 5.73 | 0.72 | 37.9 | 6.6 | 0.80 | .237 | 2.22 | 4.95 | |
| 9 | | C. Sale | 12.93 | 214.1 | 2017 | 32 | 17 | 8 | .680 | 32 | 2.90 | 308 | 1 | 0 | 0 | 165 | 69 | 73 | 24 | 43 | 8 | 0 | 0 | 851 | 3 | 1.81 | 7.16 | 1.01 | 36.2 | 5.1 | 0.97 | .301 | 3.07 | 6.93 | |
| 10 |  | G. Crochet | 12.88 | 146.0 | 2024 | 32 | 6 | 12 | .333 | 32 | 3.58 | 209 | 0 | 0 | 0 | 123 | 58 | 61 | 18 | 33 | 5 | 0 | 0 | 595 | 3 | 2.03 | 6.33 | 1.11 | 35.1 | 5.5 | 1.07 | .318 | 3.76 | 7.58 | |
| 11 |  | D. Cease | 12.73 | 169.0 | 2026 | 29 | 11 | 6 | .647 | 29 | 2.40 | 239 | 1 | 1 | 0 | 108 | 45 | 54 | 11 | 78 | 3 | 0 | 0 | 685 | 5 | 4.15 | 3.06 | 0.59 | 34.9 | 11.4 | 1.10 | .274 | 2.88 | 5.75 | |
| 12 |  | M. Scherzer | 12.69 | 172.1 | 2019 | 27 | 11 | 7 | .611 | 27 | 2.92 | 243 | 0 | 0 | 0 | 144 | 56 | 59 | 18 | 33 | 7 | 0 | 2 | 693 | 0 | 1.72 | 7.36 | 0.94 | 35.1 | 4.8 | 1.03 | .321 | 3.08 | 7.52 | |
| 13 |  | C. Burnes | 12.61 | 167.0 | 2021 | 28 | 11 | 5 | .688 | 28 | 2.43 | 234 | 0 | 0 | 0 | 123 | 45 | 47 | 7 | 34 | 6 | 0 | 0 | 657 | 5 | 1.83 | 6.88 | 0.38 | 35.6 | 5.2 | 0.94 | .309 | 2.53 | 6.63 | |
| 14 |  | K. Wood | 12.58 | 166.2 | 1998 | 26 | 13 | 6 | .684 | 26 | 3.40 | 233 | 1 | 1 | 0 | 117 | 63 | 69 | 14 | 85 | 11 | 0 | 1 | 699 | 6 | 4.59 | 2.74 | 0.76 | 33.3 | 12.2 | 1.21 | .289 | 3.73 | 6.32 | |
| 15 | | P. Martinez | 12.57 | 116.2 | 2001 | 18 | 7 | 3 | .700 | 18 | 2.39 | 163 | 1 | 0 | 0 | 84 | 31 | 33 | 5 | 25 | 6 | 0 | 0 | 456 | 4 | 1.93 | 6.52 | 0.39 | 35.7 | 5.5 | 0.93 | .307 | 2.55 | 6.48 | |
| 16 | | R. Johnson | 12.56 | 248.2 | 2000 | 35 | 19 | 7 | .731 | 35 | 2.64 | 347 | 8 | 3 | 0 | 202 | 73 | 89 | 23 | 76 | 6 | 0 | 1 | 1,001 | 5 | 2.75 | 4.57 | 0.83 | 34.7 | 7.6 | 1.12 | .326 | 3.22 | 7.31 | |
| 17 |  | C. Rodón | 12.55 | 132.2 | 2021 | 24 | 13 | 5 | .722 | 24 | 2.37 | 185 | 1 | 1 | 0 | 91 | 35 | 39 | 13 | 36 | 8 | 0 | 1 | 534 | 7 | 2.44 | 5.14 | 0.88 | 34.6 | 6.7 | 0.96 | .267 | 2.65 | 6.17 | |
| 18 |  | B. Snell | 12.55 | 104.0 | 2024 | 20 | 5 | 3 | .625 | 20 | 3.12 | 145 | 1 | 1 | 0 | 65 | 36 | 38 | 6 | 44 | 1 | 0 | 0 | 418 | 8 | 3.81 | 3.30 | 0.52 | 34.7 | 10.5 | 1.05 | .266 | 3.29 | 5.63 | |
| 19 | | J. Fernandez | 12.49 | 182.1 | 2016 | 29 | 16 | 8 | .667 | 29 | 2.86 | 253 | 0 | 0 | 0 | 149 | 58 | 63 | 13 | 55 | 6 | 0 | 6 | 737 | 9 | 2.71 | 4.60 | 0.64 | 34.3 | 7.5 | 1.12 | .332 | 3.11 | 7.35 | |
| 20 | | G. Cole | 12.40 | 200.1 | 2018 | 32 | 15 | 5 | .750 | 32 | 2.88 | 276 | 1 | 1 | 0 | 143 | 64 | 68 | 19 | 64 | 7 | 0 | 0 | 799 | 9 | 2.88 | 4.31 | 0.85 | 34.5 | 8.0 | 1.03 | .286 | 3.05 | 6.42 | |
| 21 |  | B. Snell | 12.36 | 107.0 | 2019 | 23 | 6 | 8 | .429 | 23 | 4.29 | 147 | 0 | 0 | 0 | 96 | 51 | 53 | 14 | 40 | 1 | 0 | 1 | 441 | 11 | 3.36 | 3.68 | 1.18 | 33.3 | 9.1 | 1.27 | .343 | 4.46 | 8.07 | |
| 22 |  | R. Johnson | 12.35 | 214.1 | 1995 | 30 | 18 | 2 | .900 | 30 | 2.48 | 294 | 6 | 3 | 0 | 159 | 59 | 65 | 12 | 65 | 6 | 0 | 1 | 866 | 5 | 2.73 | 4.52 | 0.50 | 33.9 | 7.5 | 1.05 | .301 | 2.73 | 6.68 | |
| 23 | | R. Johnson | 12.28 | 211.0 | 1997 | 29 | 19 | 4 | .826 | 29 | 2.30 | 288 | 5 | 2 | 0 | 145 | 54 | 60 | 20 | 77 | 10 | 0 | 2 | 842 | 4 | 3.28 | 3.74 | 0.85 | 34.2 | 9.1 | 1.05 | .280 | 2.56 | 6.18 | |
| 24 |  | D. Cease | 12.28 | 165.2 | 2021 | 32 | 13 | 7 | .650 | 32 | 3.91 | 226 | 1 | 1 | 0 | 139 | 72 | 77 | 20 | 68 | 9 | 0 | 0 | 708 | 13 | 3.69 | 3.32 | 1.09 | 31.9 | 9.6 | 1.25 | .309 | 4.18 | 7.55 | |
| 25 | | M. Scherzer | 12.24 | 220.2 | 2018 | 33 | 18 | 7 | .720 | 33 | 2.53 | 300 | 2 | 1 | 0 | 150 | 62 | 66 | 23 | 51 | 12 | 0 | 4 | 866 | 4 | 2.08 | 5.88 | 0.94 | 34.6 | 5.9 | 0.91 | .265 | 2.69 | 6.12 | |
ARI
TOR
WSH
SFG
MIA
SEAStatMuse has game-level data for K/9 and innings pitched going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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Riley
AVG
.500
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Team Pitching Leaders 
W
1
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K
9
Sale
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0.00
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Team Rankings
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204
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MLB 2026 Batting Leaders
MLB 2026 Pitching Leaders
MLB Fantasy 2026
MLB 2026 Betting
MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
74 | 88 | .457 | 20.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
75 | 87 | .463 | 28.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
Pirates
Cardinals
Reds
Diamondbacks
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 85 | 77 | .525 | |
 White Sox - w | 84 | 78 | .519 | 1.0 |
77 | 85 | .475 | 8.0 | |
76 | 86 | .469 | 9.0 | |
69 | 93 | .426 | 16.0 | |
| AL West | W | L | PCT | GB |
 Astros - y | 81 | 81 | .500 | |
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |
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Twins
Tigers
Royals
Rangers
Athletics
Angels