John Dale Hammer (born July 12, 1994) is an American
professional baseball pitcher who is a free agent. In 2019 and 2021, he played in
Major League Baseball (MLB) for the
Philadelphia Phillies
The Philadelphia Phillies are an American professional baseball team based in Philadelphia. They compete in Major League Baseball (MLB) as a member of the National League (NL) National League East, East division. Since 2004, the team's home sta ...
.
Hammer was born in
Fort Collins, Colorado
Fort Collins is a home rule municipality that is the county seat and the most populous municipality of Larimer County, Colorado
Larimer County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 359 ...
. He was the oldest of four children, all of whom helped with their parents' pizza business and played baseball. After graduating from
Fort Collins High School, he joined the
Navarro College baseball team as a
shortstop. His coaches transitioned him into pitching, and he became the team's
ace in 2014. Hammer spent two seasons with Navarro before continuing his
college baseball career with the
Marshall Thundering Herd. After graduating from Marshall, the Rockies selected Hammer in the 24th round of the
2016 MLB Draft
The 2016 Major League Baseball (MLB) First-Year Player Draft began on June 9, 2016, to assign amateur baseball players to MLB teams.
The draft order is the reverse order of the 2015 MLB season standings. In addition, compensation picks will be d ...
.
While Hammer was playing in the Rockies'
farm system
In sports, a farm team, farm system, feeder team, feeder club, or nursery club is generally a team or club whose role is to provide experience and training for young players, with an agreement that any successful players can move on to a higher ...
, he was traded to the Phillies in exchange for
Pat Neshek. He missed most of the 2018 season with an elbow injury but rose through the Phillies' minor leagues at the start of the 2019 season, making his MLB debut that May. Hammer was sent back down to
Triple-A in July and remained there for the rest of the season. He did not play in 2020 due to the
COVID-19 pandemic but returned to the Phillies
bullpen
In baseball, the bullpen (or simply the pen) is the area where relief pitchers warm up before entering a game. A team's roster of relief pitchers is also metonymically referred to as "the bullpen". These pitchers usually wait in the bullpen if t ...
in 2021. After being
outrighted from Philadelphia's roster, Hammer re-signed with the team that drafted him before the 2022 season.
Early life
Hammer was born on July 12, 1994, in
Fort Collins, Colorado
Fort Collins is a home rule municipality that is the county seat and the most populous municipality of Larimer County, Colorado
Larimer County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 359 ...
,
the oldest of four children born to Jason and Sindi Hammer, who owned a pizza franchise in the
Denver area. In addition to helping with the family business, all of the Hammer children played baseball at the encouragement of their father, who had been a
shortstop for
Lewis–Clark State College in Idaho.
Hammer played two seasons of baseball at
Fossil Ridge High School before transferring to
Fort Collins High School in 2010. During his
junior year, Hammer was a Second Team All-State selection after
hitting
A strike is a directed physical attack with either a part of the human body or with an inanimate object (such as a weapon) intended to cause blunt trauma or penetrating trauma upon an opponent.
There are many different varieties of strikes. A ...
.390 with eight
home runs.
College career
Hammer enrolled at
Navarro College as a shortstop, but he did not do well as a hitter. His coaches offered him an option between becoming a
pitcher or being
redshirted, and he elected to pitch.
He made 18 pitching appearances as a freshman in 2012, all of which came
in relief, and went 2–0 with a 3.00
earned run average (ERA) and 35 strikeouts in 39 innings pitched. After gaining attention from coaches during the 2013
JUCO World Series, in which Navarro was eliminated by
Palm Beach State College, Hammer became Navarro's
ace in 2014. He became a starting pitcher that season, pitching his first
complete game
In baseball, a complete game (CG) is the act of a pitcher pitching an entire game without the benefit of a relief pitcher. A pitcher who meets this criterion will be credited with a complete game regardless of the number of innings played—pitche ...
on March 13. Hammer came close to pitching a
shutout, but Bossier Parish scored on an
error from Navarro's center fielder, and the final score was 5–1. He went 5–1 with a 1.37 ERA during his sophomore season, striking out 58 batters in innings, and was named an All-Region XIV first team selection.
Hammer left Navarro to join the
Marshall Thundering Herd for the
2015 NCAA baseball season. He made his first start for the new team on February 27, striking out six batters and allowing six hits in seven innings, while Michael Taylor picked up the win in Marshall's 2–1 victory over the
Towson Tigers. He picked up his first win on April 18, striking out two and allowing one run on five hits in innings of the Herd's 5–1 win over
Old Dominion. Hammer's next win came on May 9, when he set personal highs with 11 strikeouts in eight innings, allowing six hits and three walks as the Herd defeated the
Western Kentucky Hilltoppers 5–3. Hammer finished the 2015 season with a 2–6 record, 3.83 ERA, and one save in 15 appearances, 12 of which were starts, and he struck out 56 batters in a team-leading 80 innings.
Hammer picked up his first win of the
2016 college baseball season on March 6, when he struck out nine batters and allowed three
earned runs in six innings of a 12–6 victory over
Lehigh
Lehigh may refer to:
Places United States
*Lehigh, Iowa
*Lehigh, Kansas
*Lehigh, Oklahoma
*Lehigh, Barbour County, West Virginia
*Lehigh, Wisconsin
*Lehigh Acres, Florida
*Lehigh Township (disambiguation)
*Lehigh Valley, a region in eastern Penns ...
. The next week, he pitched a 7–2
complete game
In baseball, a complete game (CG) is the act of a pitcher pitching an entire game without the benefit of a relief pitcher. A pitcher who meets this criterion will be credited with a complete game regardless of the number of innings played—pitche ...
victory over
Brown, carrying a
no-hitter
In baseball, a no-hitter is a game in which a team was not able to record a hit. Major League Baseball (MLB) officially defines a no-hitter as a completed game in which a team that batted in at least nine innings recorded no hits. A pitcher wh ...
through four innings before surrendering a
double in the fifth. Hammer missed nine games with an upper body injury but finished the season 4–2 with a 4.88 ERA in 14 appearances, 11 of which were starts, and with 56 strikeouts in innings.
Hammer appeared as a relief pitcher for Marshall in the semifinal round of the
Conference USA baseball tournament, and despite holding the
Southern Miss Golden Eagles scoreless in his outing, Marshall fell 3–2 and was eliminated from the postseason.
Professional career
Colorado Rockies organization (2016–2017)
The
Colorado Rockies
The Colorado Rockies are an American professional baseball team based in Denver. The Rockies compete in Major League Baseball (MLB) as a member club of the National League (NL) West division. The team plays its home baseball games at Coors Fie ...
of
Major League Baseball (MLB), Hammer's hometown team, selected him in the 24th round, 710th overall, of the
2016 MLB Draft
The 2016 Major League Baseball (MLB) First-Year Player Draft began on June 9, 2016, to assign amateur baseball players to MLB teams.
The draft order is the reverse order of the 2015 MLB season standings. In addition, compensation picks will be d ...
.
He signed with the team for a
bonus of only $1,000 and was assigned to the
Rookie-level Grand Junction Rockies of the
Pioneer League. The Grand Junction Rockies were managed at the time by Frank Gonzales, who had coached Hammer when he was in high school. Hammer made 27 Pioneer League appearances, all in relief, in his first season of professional baseball. He posted a 0–2 record and a 3.92 ERA while striking out 52 batters in innings.
Hammer opened the 2017 baseball season as the designated
closer for the
Class A Asheville Tourists. After going 3–1 with a 1.08 ERA, 40 strikeouts, and six saves in his first 25 innings, he became one of six Tourists named to the
South Atlantic League Mid-Season All-Star Team that June. He pitched five more innings, earning another win and striking out two more batters, before being called up to the
Class A-Advanced Lancaster JetHawks. In 12 games there, Hammer went 0–1 with a 5.25 ERA, striking out 18 batters in 12 innings and converting six saves.
Between the two teams, Hammer successfully converted 13
saves in 14 opportunities and averaged 13.9
strikeouts per nine innings (K/9).
Philadelphia Phillies (2017–2021)
On July 26, 2017, the
Philadelphia Phillies
The Philadelphia Phillies are an American professional baseball team based in Philadelphia. They compete in Major League Baseball (MLB) as a member of the National League (NL) National League East, East division. Since 2004, the team's home sta ...
traded sidearm reliever
Pat Neshek and cash to the Rockies in exchange for three
prospects: Hammer, Alejandro Requena, and Jose Gomez. Hammer was assigned to the Class A-Advanced
Clearwater Threshers
The Clearwater Threshers are a Minor League Baseball team of the Florida State League and the Single-A affiliate of the Philadelphia Phillies. They are located in Clearwater, Florida, and have played their home games at BayCare Ballpark since 2 ...
of the
Florida State League
The Florida State League (FSL) is a Minor League Baseball league based in the state of Florida. Having been classified at various levels throughout its existence, it operated at Class A-Advanced from 1990 until its demotion to Single-A following ...
(FSL), becoming a
bullpen
In baseball, the bullpen (or simply the pen) is the area where relief pitchers warm up before entering a game. A team's roster of relief pitchers is also metonymically referred to as "the bullpen". These pitchers usually wait in the bullpen if t ...
staple with a 2–0 record and a 0.57 ERA in 12 appearances. Hammer struck out 20 batters in FSL innings, issued only two
walks, and held his opponents to a .154
batting average. Impressed with his regular season performance, the Phillies sent Hammer to the
Arizona Fall League to continue working on his pitch mechanics as a member of the
Glendale Desert Dogs
The Glendale Desert Dogs are a baseball team that plays in the West Division of the Arizona Fall League. They play their home games at Camelback Ranch in Glendale, Arizona. The ballpark is also the spring training facility of the Chicago White Sox ...
.
In 10 appearances for Arizona, Hammer posted an ERA of 0.66, with 11 strikeouts in innings and only 0.805
walks plus hits per innings pitched
In baseball statistics, walks plus hits per inning pitched (WHIP) is a sabermetric measurement of the number of baserunners a pitcher has allowed per inning pitched. WHIP is calculated by adding the number of walks and hits allowed and div ...
(WHIP).
After starting the 2018 baseball season in extended
spring training
Spring training is the preseason in Major League Baseball (MLB), a series of practices and exhibition games preceding the start of the regular season. Spring training allows new players to try out for Schedule (workplace), roster and position spo ...
with the Phillies, Hammer reported back to Clearwater in June. He appeared in only three games, allowing three
earned runs in innings before going on the
disabled list
In Major League Baseball (MLB), the injured list (IL) is a method for teams to remove their injured players from the roster in order to summon healthy players. Before the 2019 season, it was known as the disabled list (DL).
General guidelines
...
(DL). He spent most of the season on the DL with a strained elbow, appearing in only 12 games.
Nine of those appearances were in relief for the Threshers, with whom he went 1–2 with a 2.79 ERA and struck out 12 batters in innings. The other three were quick outings with the
Gulf Coast League Phillies
The Florida Complex League Phillies are a Rookie-level affiliate of the Philadelphia Phillies, competing in the Florida Complex League of Minor League Baseball. Prior to 2021, the team was known as the Gulf Coast League Phillies. The team plays ...
.
Although he was not invited to spring training in 2019, Hammer did receive a promotion, starting the season with the
Double-A Reading Fightin' Phils
The Reading Fightin Phils (also called the Reading Fightins) are a Minor League Baseball team based in Reading, Pennsylvania, playing in the Northeast Division of the Eastern League. The team plays their home games at FirstEnergy Stadium. The Re ...
. In 13 games and 21 innings there, Hammer went 1–0 with a 1.77 ERA. He made one appearance for the
Triple-A Lehigh Valley IronPigs as well, recording
outs against all six batters he faced.
When Pat Neshek was placed on the injured list on May 25, 2019, Hammer was called up to fill his place in the
bullpen
In baseball, the bullpen (or simply the pen) is the area where relief pitchers warm up before entering a game. A team's roster of relief pitchers is also metonymically referred to as "the bullpen". These pitchers usually wait in the bullpen if t ...
and on the 25-man roster.
He made his MLB debut the following day, pitching a scoreless inning against the
Milwaukee Brewers
The Milwaukee Brewers are an American professional baseball team based in Milwaukee. They compete in Major League Baseball (MLB) as a member club of the National League (NL) National League Central, Central division. The Brewers are named for t ...
by getting out
Christian Yelich,
Ryan Braun, and
Mike Moustakas. Hammer played 20 games with the Phillies, during which he went 1–0 with a 3.79 ERA and 1.421 WHIP while striking out 13 batters in 19 innings. He was sent back down to the IronPigs on July 23, however, to prevent him from being overworked following his injury-shortened 2018 season. Upon his return, Hammer's
fastball velocity sharply declined with the rigors of a full season of professional baseball, and in his last 16 outings, he recorded a 14.49 ERA, .345
batting average against, and opposing batters had a 1.128
on-base plus slugging against him.
Coupled with his earlier appearance, Hammer went 2–2 with a 12.64 ERA in 17 games for Lehigh Valley, striking out 16 batters in innings.
Recognizing that his declining pitch velocity and the lack of
breaking balls in his pitch repertoire had affected his performance, Hammer spent the 2019–20 offseason weightlifting and developing his
slider and
curveball
In baseball and softball, the curveball is a type of pitch thrown with a characteristic grip and hand movement that imparts forward spin to the ball, causing it to dive as it approaches the plate. Varieties of curveball include the 12–6 curve ...
.
He was sent to Triple-A that February, but on June 30,
Minor League Baseball responded to the
COVID-19 pandemic by cancelling the season. Every team was afforded a 60-player pool, of which 30 were on the major league roster and the other 30 practiced an at alternate training site instead of playing in minor league games. Hammer was included in the alternate training site player pool, and he spent the entirety of the abbreviated season training in Lehigh Valley. Hammer opened the 2021 season with the IronPigs, posting a 1.74 ERA and striking out 33 batters in innings before he was called up to Philadelphia on July 10. He made his season debut that day against the
Boston Red Sox, loading the bases on a
hit by pitch
In baseball, hit by pitch (HBP) is an event in which a batter or his clothing or equipment (other than his bat) is struck directly by a pitch from the pitcher; the batter is called a hit batsman (HB). A hit batsman is awarded first base, provided ...
, a
single and a
walk before retiring the next three batters to escape the inning without allowing a run. Hammer appeared in 20 major league games during the 2021 season, recording a 4.95 ERA and striking out 22 batters in 20 innings. On November 5, 2021, the Phillies attempted to
outright Hammer off of the 40-man roster, but he opted for
free agency instead.
Second stint with Colorado (2022–present)
On December 1, 2021, Hammer signed a minor league contract with the Rockies to rejoin the team that drafted him. Following the
2021–22 MLB lockout, Hammer was one of ten non-roster players that the Rockies invited to a condensed spring training. He was assigned to the
Albuquerque Isotopes, the Triple-A affiliate of the Rockies, to begin the season. The assignment reunited Hammer with his high school baseball coach Frank Gonzales, who had since taken a job as pitching coach for the Isotopes. He spent the entire season in Albuquerque. In 53 appearances for the Isotopes, all of which came in relief, Hammer was 1–1 with a 5.94 ERA. He struck out 47 batters in 47 innings.
He elected free agency on November 10, 2022.
Pitching style
During the 2021 season, Hammer threw three pitches: a
fastball with an average velocity of , which he threw 61 percent of the time, and an
slider and
curveball
In baseball and softball, the curveball is a type of pitch thrown with a characteristic grip and hand movement that imparts forward spin to the ball, causing it to dive as it approaches the plate. Varieties of curveball include the 12–6 curve ...
as his
breaking balls. He added the slider early in the 2019 season, before his first MLB recall, and has also used a
changeup. Hammer credits his minor-league elbow injury with teaching him "that I need to take better care of my body and how to prepare and not just go out there and throw".
Personal life
Hammer is known for the thick black plastic glasses that he wears when pitching, which have been compared to the glasses that
Charlie Sheen's character Ricky "Wild Thing" Vaughn wears in the 1989 baseball film ''
Major League''.
He began wearing them during the 2017 season after his poor vision prevented him from reading the
signs
Signs may refer to:
* ''Signs'' (2002 film), a 2002 film by M. Night Shyamalan
* ''Signs'' (TV series) (Polish: ''Znaki'') is a 2018 Polish-language television series
* ''Signs'' (journal), a journal of women's studies
*Signs (band), an American ...
indicating which pitches his
catcher was calling for him to throw.
As his parents' firstborn, Hammer was named John Dale after both of his grandfathers, but primarily goes by his initials because his parents thought that "J. D. Hammer" was a "
seball name".
He has two younger brothers, Garrett and Kalen, and a sister named Brenli. Garrett Hammer played baseball for
Rocky Mountain High School,
Kellogg Community College, and
New Mexico Highlands University.
References
External links
*
{{DEFAULTSORT:Hammer, J. D.
1994 births
Living people
Albuquerque Isotopes players
Asheville Tourists players
Baseball players from Colorado
Clearwater Threshers players
Glendale Desert Dogs players
Grand Junction Rockies players
Florida Complex League Phillies players
Lancaster JetHawks players
Lehigh Valley IronPigs players
Major League Baseball pitchers
Marshall Thundering Herd baseball players
Navarro Bulldogs baseball players
Philadelphia Phillies players
Reading Fightin Phils players
Sportspeople from Fort Collins, Colorado