Jandel Gustave

Born: October 12, 1992
Height: 6’3″
Weight: 220
Bats: Right
Throws: Right
Signed: Int’l Free Agent, 2010 (Astros)
How Acquired: Minor League Free Agent
Country: Dominican Republic
Agent: N/A


Gustave signed with the Astros as a pitcher with great velocity but no control at all.  He slowly developed an ability to throw strikes as he moved up through the minors, while frequently hitting triple digits on the radar gun.  He throws a slider that took a long time to develop as an effective secondary pitch.  Gustave has been very successful throughout his career at avoiding the longball, although he’s not an extreme groundball pitcher.  His fastball has generally registered 96-98 mph in the majors.  He’s had only a limited platoon split.  He seemed to get established with the Astros in 2016, but had Tommy John surgery the following year.

DSL:  0-5-0, 8.20 ERA, 2.17 WHIP, 26.1 IP, 11.3 BB/9, 9.2 K/9

Gustave pitched both as a starter and reliever in his pro debut.  Obviously, he had a lot of trouble throwing strikes.

DSL:  0-4-0, 12.10 ERA, 3.00 WHIP, 19.1 IP, 15.8 BB/9, 8.8 K/9

Back in the DSL, Gustave’s control problems got even worse.

R:  2-1-0, 5.79 ERA, 1.82 WHIP, 28.0 IP, 8.7 BB/9, 7.1 K/9

The Astros moved Gustave up to rookie ball and he started to get a bit of a handle on his control issues.

R+:  2-3-0, 2.68 ERA, 1.40 WHIP, 43.2 IP, 4.7 BB/9, 10.1 K/9

Gustave made significant progress in advanced rookie ball, including a strong K rate.  Baseball America rated him the 27th best prospect in the Astros’ system after the season.

A:  5-5-2, 5.01 ERA, 1.56 WHIP, 79.0 IP, 3.3 BB/9, 9.3 K/9

In full season ball, Gustave had a rougher time.  His control continued to improve, but he got hit harder than before, with opponents batting .289 against him.  He made 14 starts and nine relief appearances, and pitched far better in relief.  After the season, the Astros did not add him to their 40-man roster.  Boston selected him in the Rule 5 draft and immediately sent him to Kansas City for cash.  BA ranked him 30th in the Royals’ system.

AA:  5-2-20, 2.15 ERA, 1.30 WHIP, 58.2 IP, 3.8 BB/9, 7.5 K/9

In spring training, the Royals put Gustave on waivers and the Padres claimed him.  He didn’t make the Padres’ roster, though, and he was returned to the Astros.  Houston moved him full time to relief and he pitched effectively, although with a lower K rate.  BA rated him 18th in the Houston system after the season and the Astros added him to their 40-man roster.

AAA:  3-3-3, 3.79 ERA, 1.21 WHIP, 57.0 IP, 3.6 BB/9, 8.7 K/9
MLB:  1-0-0, 3.52 ERA, 1.11 WHIP, 15.1 IP, 2.3 BB/9, 9.4 K/9

The Astros sent Gustave to AAA, where he had a solid season.  They called him up in mid-August and he made three appearances, went back to AAA, then returned for September.  He was actually more effective in the majors, with very good walk an K rates.  BA again rated him 18th in the system after the season.

MLB:  0-0-0, 5.40 ERA, 2.40 WHIP, 5.0 IP, 12.6 BB/9, 3.6 K/9

Gustave opened the season with Houston, but after six rough outings he went out with elbow problems.  He ended up having Tommy John surgery.  BA still rated him 28th in the system.


Gustave missed the season following the surgery.  The Astros outrighted him after the season and he refused assignment, becoming a free agent.  He signed a minor league deal with San Francisco.

A+:  0-0-0, 0.00 ERA, 0.00 WHIP, 3.0 IP, 0.0 BB/9, 12.0 K/9
AAA:  2-2-7, 6.15 ERA, 1.52 WHIP, 26.1 IP, 4.1 BB/9, 8.5 K/9
MLB:  0-0-1, 2.96 ERA, 1.11 WHIP, 24.1 IP, 3.3 BB/9, 5.2 K/9

Gustave returned in May and eventually worked his way back to the majors.  The Giants called him up in July and he pitched reasonably well, although with a low K rate.

At the start of the truncated 2020 season, the Giants outrighted Gustave to their training facility.  He refused assignment and the Pirates signed him to a minor league deal that runs through 2021.

2017: $537,200
Minor league salary
2021: Minor league salary
Signing Bonus: N/A
MiLB Debut: 2010
MLB Debut: 8/11/16
MiLB FA Eligible: 2021
MLB FA Eligible: 2024
Rule 5 Eligible: Eligible
Added to 40-Man: 12/11/2014 (since removed)
Options Remaining: 1 (USED: 2016, 2020)
MLB Service Time: 2.097
June 4, 2010: Signed as an international free agent by the Houston Astros.
December 11, 2014: Selected in the Rule 5 draft by the Boston Red Sox from the Houston Astros.
December 11, 2014: Traded by the Boston Red Sox to the Kansas City Royals for cash considerations.
March 24, 2015: Designated for assignment by the Kansas City Royals.
March 26, 2015: Claimed off waivers from the Kansas City Royals by the San Diego Padres.
April 3, 2015: Returned to the Houston Astros by the San Diego Padres.
November 20, 2015: Contract purchased by the Houston Astros.
October 31, 2018: Outrighted to AAA by the Houston Astros, refused assignment and became a free agent.
February 14, 2019: Signed as a minor league free agent by the San Francisco Giants.
July 18, 2019: Called up by the San Francisco Giants.
August 2, 2020: Outrighted to AAA by the San Francisco Giants; refused assignment and became a free agent on August 10.
August 17, 2020: Signed as a minor league free agent by the Pittsburgh Pirates.