Colorado Rockies Walks / 9 Leaders
Career totals with the Rockies and the best single seasons in club history. Records run through the 2025 season.
Kyle Freeland holds the Rockies career record with 2.71 walks / 9. The single-season record is 1.81, by German Marquez in 2019.
Rate records use the league's own minimums: a season needs the standard 1.0 inning per team game with the club, a career 1,000+ innings pitched with the club.
All-time Rockies leaders
Career totals with the club| # | Player | With the club | BB/9 | G |
|---|---|---|---|---|
| 1 |
 Kyle Freeland
|
2017–2026 | 2.71 | 262 |
| 2 |
 German Marquez
|
2016–2025 | 2.78 | 203 |
| 3 |
 Aaron Cook
|
2002–2011 | 2.80 | 238 |
| 4 |
 Jeff Francis
|
2004–2013 | 2.81 | 197 |
| 5 |
 Jorge De La Rosa
|
2008–2016 | 3.79 | 209 |
Single-season Rockies records
Best seasons in club history| # | Player | Season | BB/9 | G |
|---|---|---|---|---|
| 1 |
German Marquez
|
2019 | 1.81 | 28 |
| 2 |
Aaron Cook
|
2008 | 2.04 | 32 |
| 3 |
 Austin Gomber
|
2024 | 2.07 | 30 |
| 4 |
Kyle Freeland
|
2025 | 2.10 | 31 |
| 5 |
 Jason Hammel
|
2009 | 2.14 | 34 |
| 6 |
 Antonio Senzatela
|
2020 | 2.21 | 12 |
| 7 |
Aaron Cook
|
2006 | 2.33 | 32 |
| 8 |
Jason Hammel
|
2010 | 2.38 | 30 |
| 9 |
Aaron Cook
|
2007 | 2.39 | 25 |
| 10 | Armando Reynoso | 1996 | 2.61 | 30 |
| 11 |
German Marquez
|
2018 | 2.62 | 33 |
| 12 |
Jeff Francis
|
2007 | 2.63 | 34 |
| 13 |
 Jon Gray
|
2018 | 2.72 | 31 |
| 13 |
German Marquez
|
2017 | 2.72 | 29 |
| 15 |
Kyle Freeland
|
2022 | 2.73 | 31 |
| 16 |
German Marquez
|
2020 | 2.76 | 13 |
| 16 |
 John Thomson
|
1997 | 2.76 | 27 |
| 18 |
 Jhoulys Chacin
|
2013 | 2.78 | 31 |
| 19 |
 Chad Bettis
|
2016 | 2.85 | 32 |
| 19 | Masato Yoshii | 2000 | 2.85 | 29 |
| 21 |
 Ryan Feltner
|
2024 | 2.88 | 30 |
| 22 |
 Pedro Astacio
|
1999 | 2.91 | 34 |
| 23 |
Kyle Freeland
|
2020 | 2.93 | 13 |
| 24 | Armando Reynoso | 1993 | 3.00 | 30 |
| 25 |
 Tyler Anderson
|
2018 | 3.02 | 32 |