50 pitchers are tied for the highest K/9 by a relief pitcher in a season, with 27.00 per nine innings. The first three are Eury Pérez, Clarke Schmidt and Joe La Sorsa this season.
| NAME | K/9 | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | E. Pérez | 27.00 | 2026 | 1 | 0 | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 2 | | C. Schmidt | 27.00 | 2026 | 1 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0.2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0.00 | 0.00 | 50.0 | 0.0 | 3.00 | 1.000 | 0.00 | 27.00 | |||
| 3 | | J. La Sorsa | 27.00 | 2026 | 1 | 0 | 0 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0.1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 27.00 | 50.0 | 0.0 | 3.00 | 27.00 | 27.00 | ||||
| 4 | | Y. Marte | 27.00 | 2026 | 1 | 0 | 0 | 0 | 108.00 | 1 | 0 | 0 | 0 | 0.1 | 3 | 4 | 4 | 0 | 1 | 1 | 0 | 1 | 6 | 0 | 27.00 | 1.00 | 0.00 | 16.7 | 16.7 | 12.00 | 1.000 | 108.00 | 81.00 | ||
| 5 | | J. Sandridge | 27.00 | 2025 | 1 | 0 | 0 | 0 | 27.00 | 2 | 0 | 0 | 0 | 0.2 | 1 | 2 | 2 | 1 | 2 | 1 | 0 | 0 | 6 | 0 | 27.00 | 1.00 | 13.50 | 33.3 | 33.3 | 4.50 | 27.00 | 13.50 | |||
| 6 |  | W. Warren | 27.00 | 2024 | 1 | 0 | 0 | 0 | 27.00 | 3 | 0 | 0 | 0 | 1.0 | 2 | 3 | 3 | 1 | 1 | 0 | 1 | 0 | 6 | 0 | 9.00 | 3.00 | 9.00 | 50.0 | 16.7 | 3.00 | 1.000 | 27.00 | 18.00 | ||
| 7 | | E. Justice | 27.00 | 2024 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 27.00 | 1.00 | 0.00 | 50.0 | 50.0 | 3.00 | 0.00 | 0.00 | |||
| 8 | | C. Andrews | 27.00 | 2024 | 1 | 0 | 0 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0.1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 3 | 0 | 0.00 | 27.00 | 33.3 | 0.0 | 3.00 | 27.00 | 27.00 | ||||
| 9 | | R. Gonzalez | 27.00 | 2021 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 10 | | K. Quackenbush | 27.00 | 2021 | 1 | 0 | 0 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0.1 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0.00 | 0.00 | 25.0 | 0.0 | 9.00 | 1.000 | 27.00 | 81.00 | |||
| 11 | | N. Maton | 27.00 | 2021 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 12 | | M. Freeman | 27.00 | 2021 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 13 | | W. Crowe | 27.00 | 2021 | 1 | 0 | 0 | 0 | 13.50 | 2 | 0 | 0 | 0 | 0.2 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 5 | 2 | 27.00 | 1.00 | 0.00 | 40.0 | 40.0 | 4.50 | 1.000 | 13.50 | 13.50 | ||
| 14 | | C. Roe | 27.00 | 2021 | 1 | 0 | 0 | 0 | 27.00 | 2 | 0 | 0 | 0 | 0.2 | 1 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 13.50 | 2.00 | 0.00 | 50.0 | 25.0 | 3.00 | 1.000 | 27.00 | 13.50 | ||
| 15 |  | F. Peralta | 27.00 | 2021 | 1 | 0 | 0 | 0 | 0.00 | 6 | 0 | 0 | 0 | 2.0 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 11 | 0 | 13.50 | 2.00 | 0.00 | 54.5 | 27.3 | 2.50 | 1.000 | 0.00 | 9.00 | ||
| 16 | | M. Brosseau | 27.00 | 2020 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 17 | | J. Beasley | 27.00 | 2020 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0.00 | 0.00 | 33.3 | 0.0 | 6.00 | 1.000 | 0.00 | 54.00 | |||
| 18 | | T. Kahnle | 27.00 | 2020 | 1 | 0 | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 6 | 0 | 9.00 | 3.00 | 0.00 | 50.0 | 16.7 | 2.00 | .500 | 0.00 | 9.00 | ||
| 19 | | D. Betances | 27.00 | 2019 | 1 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 20 | | J. Castillo | 27.00 | 2019 | 1 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 4 | 1 | 13.50 | 2.00 | 0.00 | 50.0 | 25.0 | 1.50 | 0.00 | 0.00 | |||
| 21 | | A. Wojciechowski | 27.00 | 2019 | 1 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0.2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 0.00 | 0.00 | 66.7 | 0.0 | 1.50 | 1.000 | 0.00 | 13.50 | |||
| 22 | | J. Gyorko | 27.00 | 2019 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
| 23 | | A. Williams | 27.00 | 2019 | 2 | 0 | 0 | 0 | 162.00 | 1 | 0 | 0 | 0 | 0.1 | 5 | 6 | 6 | 2 | 1 | 0 | 0 | 0 | 7 | 0 | 27.00 | 1.00 | 54.00 | 14.3 | 14.3 | 18.00 | 1.000 | 162.00 | 135.00 | ||
| 24 | | A. Sampson | 27.00 | 2018 | 1 | 0 | 0 | 0 | 54.00 | 1 | 0 | 0 | 0 | 0.1 | 4 | 2 | 3 | 1 | 0 | 0 | 0 | 0 | 6 | 0 | 0.00 | 27.00 | 16.7 | 0.0 | 12.00 | .750 | 81.00 | 108.00 | |||
| 25 | | D. Valencia | 27.00 | 2018 | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.00 | 100.0 | 0.0 | 0.00 | 0.00 | 0.00 | ||||
MIA
CIN
COL
PIT
ARI
SDP
BAL
STL
WSH
TEXStatMuse has game-level data for K/9 going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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Team Batting Leaders 
HR
25
Hernández
RBI
71
Lopez
AVG
.305
Lopez
Team Pitching Leaders 
W
13
Alcantara
K
170
Pérez
ERA
2.68
Meyer
Team Rankings
HR
168
23rd
R
715
18th
SO
1,323
18th
ERA
4.09
13th
Mets
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 |
Diamondbacks
Giants| 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 |
Blue Jays
Twins
Tigers
Royals
Mariners
Athletics
Angels