Mark Leiter Jr. #38
Athletics
- P
- B/T: R/R
- 6' 0"/210
- Age: 35
- Mark Edward Leiter Jr.
- Status: Active
- Nickname: Junior
- Born: 3/13/1991 in Fort Lauderdale, FL
- Draft: 2013, Philadelphia Phillies, Round: 22, Overall Pick: 661
- College: New Jersey Institute of Technology
- MLB Debut: 4/28/2017
- Relationship(s): nephew of Al Leiter son of Mark Leiter cousin of Jack Leiter cousin of Cam Leiter
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 5 | 0-1 | 10.38 | 4.1 | 1 | 2.54 |
2023 Stats
| AB | AVG | HR | RBI | SB | OPS |
|---|---|---|---|---|---|
| 0 | .000 | 0 | 0 | 0 | .000 |
MiLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 155 | 42-35 | 3.55 | 641.1 | 660 | 1.19 |
MLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 275 | 16-30 | 4.67 | 356.2 | 397 | 1.34 |
MiLB Career Stats
| AB | AVG | HR | RBI | SB | OPS |
|---|---|---|---|---|---|
| 19 | .105 | 0 | 0 | 0 | .210 |
MLB Career Stats
| AB | AVG | HR | RBI | SB | OPS |
|---|---|---|---|---|---|
| 28 | .071 | 0 | 0 | 0 | .142 |
| Year | AB | R | H | HR | RBI | SB | AVG | OBP | OPS |
|---|---|---|---|---|---|---|---|---|---|
| 2023 MLB Stats | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 |
| MiLB Career Stats | 19 | 2 | 2 | 0 | 0 | 0 | .105 | .105 | .210 |
| MLB Career Stats | 28 | 0 | 2 | 0 | 0 | 0 | .071 | .071 | .142 |
| Year | W | L | ERA | G | GS | SV | IP | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2026 MLB Stats | 0 | 1 | 10.38 | 5 | 0 | 1 | 4.1 | 1 | 2.54 |
| MiLB Career Stats | 42 | 35 | 3.55 | 155 | 99 | 2 | 641.1 | 660 | 1.19 |
| MLB Career Stats | 16 | 30 | 4.67 | 275 | 15 | 10 | 356.2 | 397 | 1.34 |
- Next ATH Game: 4-08 @ NYY
Splits
| Duration | W | L | ERA | G | GS | SV | IP | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Last 7 Games | 0 | 1 | 10.38 | 5 | 0 | 1 | 4.1 | 10 | 5 | 1 | 1 | 2.54 |
| Last 15 Games | - | - | --- | - | - | - | --- | - | - | - | - | --- |
| Last 30 Games | - | - | --- | - | - | - | --- | - | - | - | - | --- |
| Last 3 Games | W | L | SV | IP | H | ER | BB | SO |
|---|---|---|---|---|---|---|---|---|
| 4/7 @ NYY | 0 | 1 | 0 | 0.2 | 4 | 4 | 0 | 0 |
| 4/5 vs HOU | 0 | 0 | 0 | 1.0 | 1 | 0 | 1 | 0 |
| 3/31 @ ATL | 0 | 0 | 1 | 1.0 | 2 | 0 | 0 | 1 |
2026 :
RP
(5)
More Mark Leiter Jr.
Leiter Jr. Shoves in Black Yankees Win over Richmond Saturday
Irvin tosses gem, Pigs fly in road trip finale
Pigs cap record-setting July with 11-8 win
Leibrandt breaks record as Pigs complete sweep
Leiter, Jr. recalls thrill of first MLB start
Crawford's Inside-The-Park Slam Lifts Pigs To 8-2 Win
Cozens, Florimon Homer As Leiter Picks Up Win
Phillies Triple-A Fall To Yankees, 4-2
Latest Transactions
| Team | Date | Transaction |
|---|---|---|
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December 17, 2025 | Athletics signed free agent RHP Mark Leiter Jr.. |
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November 21, 2025 | RHP Mark Leiter Jr. elected free agency. |
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October 9, 2025 | New York Yankees activated RHP Mark Leiter Jr.. |
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October 4, 2025 | RHP Mark Leiter Jr. roster status changed by New York Yankees. |
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August 5, 2025 | New York Yankees activated RHP Mark Leiter Jr. from the 15-day injured list. |
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August 2, 2025 | New York Yankees sent RHP Mark Leiter Jr. on a rehab assignment to Somerset Patriots. |
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July 8, 2025 | New York Yankees placed RHP Mark Leiter Jr. on the 15-day injured list retroactive to July 7, 2025. Left fibular head stress fracture. |
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April 16, 2025 | RHP Mark Leiter Jr. changed number to 56. |
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April 15, 2025 | RHP Mark Leiter Jr. changed number to 42. |
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December 20, 2024 | RHP Mark Leiter Jr. changed number to 56. |
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October 18, 2024 | New York Yankees activated RHP Mark Leiter Jr.. |
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October 5, 2024 | RHP Mark Leiter Jr. roster status changed by New York Yankees. |
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September 29, 2024 | New York Yankees activated RHP Mark Leiter Jr. from the paternity list. |
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September 26, 2024 | New York Yankees placed RHP Mark Leiter Jr. on the paternity list. |
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July 30, 2024 | Chicago Cubs traded RHP Mark Leiter Jr. to New York Yankees for SS Benjamin Cowles and RHP Jack Neely. |
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July 9, 2024 | Chicago Cubs activated RHP Mark Leiter Jr. from the 15-day injured list. |
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June 23, 2024 | Chicago Cubs placed RHP Mark Leiter Jr. on the 15-day injured list. Right forearm strain. |
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March 30, 2023 | Chicago Cubs selected the contract of RHP Mark Leiter Jr., and from Iowa Cubs. |
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February 3, 2023 | RHP Mark Leiter Jr. assigned to Iowa Cubs. |
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January 30, 2023 | RHP Mark Leiter Jr. roster status changed by Chicago Cubs. |
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January 30, 2023 | RHP Mark Leiter Jr. roster status changed by Chicago Cubs. |
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January 30, 2023 | Chicago Cubs signed free agent RHP Mark Leiter Jr. to a minor league contract. |
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January 22, 2023 | RHP Mark Leiter Jr. elected free agency. |
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January 19, 2023 | Chicago Cubs sent RHP Mark Leiter Jr. outright to Iowa Cubs. |
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January 13, 2023 | Chicago Cubs designated RHP Mark Leiter Jr. for assignment. |
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July 30, 2022 | Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs. |
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July 16, 2022 | Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs. |
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June 21, 2022 | Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs. |
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June 4, 2022 | Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs. |
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May 29, 2022 | Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs. |
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May 18, 2022 | Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs. |
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May 11, 2022 | Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs. |
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April 30, 2022 | Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs. |
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April 16, 2022 | Chicago Cubs selected the contract of RHP Mark Leiter Jr. from Iowa Cubs. |
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March 17, 2022 | RHP Mark Leiter Jr. and assigned to Chicago Cubs. |
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December 16, 2021 | Iowa Cubs activated RHP Mark Leiter Jr. |
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December 15, 2021 | Chicago Cubs signed free agent RHP Mark Leiter Jr. to a minor league contract. |
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November 7, 2021 | RHP Mark Leiter Jr. elected free agency. |
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June 15, 2021 | RHP Mark Leiter Jr. assigned to Toledo Mud Hens from Erie SeaWolves. |
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March 25, 2021 | P Mark Leiter Jr. assigned to Erie SeaWolves . |
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March 18, 2021 | Detroit Tigers signed free agent P Mark Leiter Jr.. |
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May 22, 2020 | Jackson Generals released RHP Mark Leiter Jr.. |
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March 2, 2020 | RHP Mark Leiter Jr. assigned to Jackson Generals. |
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February 7, 2020 | Arizona Diamondbacks signed free agent RHP Mark Leiter Jr. to a minor league contract. |
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November 4, 2019 | RHP Mark Leiter Jr. elected free agency. |
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September 18, 2019 | Buffalo Bisons activated RHP Mark Leiter Jr. from the 7-day injured list. |
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April 4, 2019 | Buffalo Bisons placed RHP Mark Leiter Jr. on the 7-day injured list. |
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January 28, 2019 | Toronto Blue Jays invited non-roster RHP Mark Leiter Jr. to spring training. |
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November 30, 2018 | Toronto Blue Jays sent RHP Mark Leiter Jr. outright to Buffalo Bisons. |
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November 26, 2018 | Toronto Blue Jays designated RHP Mark Leiter Jr. for assignment. |
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September 3, 2018 | Toronto Blue Jays activated RHP Mark Leiter Jr.. |
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September 1, 2018 | Toronto Blue Jays claimed RHP Mark Leiter Jr. off waivers from Philadelphia Phillies. |
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August 28, 2018 | Philadelphia Phillies designated RHP Mark Leiter Jr. for assignment. |
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August 17, 2018 | Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs. |
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August 16, 2018 | Philadelphia Phillies recalled Mark Leiter Jr. from Lehigh Valley IronPigs. |
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July 23, 2018 | Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs. |
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June 30, 2018 | Philadelphia Phillies recalled Mark Leiter Jr. from Lehigh Valley IronPigs. |
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June 17, 2018 | Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs. |
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May 31, 2018 | Philadelphia Phillies recalled Mark Leiter Jr. from Lehigh Valley IronPigs. |
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May 16, 2018 | Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs. |
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May 6, 2018 | Philadelphia Phillies sent RHP Mark Leiter Jr. on a rehab assignment to Clearwater Threshers. |
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March 29, 2018 | Philadelphia Phillies placed RHP Mark Leiter Jr. on the 10-day disabled list retroactive to March 26, 2018. Right forearm strain. |
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February 15, 2018 | Mark Leiter Jr. changed number to 31. |
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July 30, 2017 | Philadelphia Phillies recalled RHP Mark Leiter from Lehigh Valley IronPigs. |
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July 18, 2017 | Philadelphia Phillies optioned RHP Mark Leiter to Lehigh Valley IronPigs. |
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June 23, 2017 | Philadelphia Phillies recalled Mark Leiter from Lehigh Valley IronPigs. |
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June 3, 2017 | Philadelphia Phillies optioned RHP Mark Leiter to Lehigh Valley IronPigs. |
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April 18, 2017 | Philadelphia Phillies selected the contract of Mark Leiter from Lehigh Valley IronPigs. |
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March 31, 2017 | RHP Mark Leiter assigned to Lehigh Valley IronPigs from Reading Fightin Phils. |
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February 23, 2017 | RHP Mark Leiter assigned to Philadelphia Phillies. |
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June 24, 2016 | RHP Mark Leiter assigned to Reading Fightin Phils from Clearwater Threshers. |
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June 23, 2016 | RHP Mark Leiter assigned to Clearwater Threshers from Reading Fightin Phils. |
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May 9, 2016 | RHP Mark Leiter assigned to Reading Fightin Phils from Clearwater Threshers. |
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April 6, 2016 | RHP Mark Leiter assigned to Clearwater Threshers from GCL Phillies. |
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September 4, 2015 | RHP Mark Leiter assigned to GCL Phillies from Clearwater Threshers. |
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August 6, 2015 | RHP Mark Leiter assigned to Clearwater Threshers from Reading Fightin Phils. |
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July 20, 2015 | Reading Fightin Phils activated RHP Mark Leiter from the temporarily inactive list. |
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July 10, 2015 | Reading Fightin Phils placed RHP Mark Leiter on the temporarily inactive list. |
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June 19, 2015 | RHP Mark Leiter assigned to FSL North Division All-Stars. |
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June 15, 2015 | RHP Mark Leiter assigned to Reading Fightin Phils from Clearwater Threshers. |
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March 17, 2015 | RHP Mark Leiter assigned to Philadelphia Phillies. |
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June 25, 2014 | RHP Mark Leiter assigned to Clearwater Threshers from Lakewood BlueClaws. |
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March 15, 2014 | RHP Mark Leiter assigned to Philadelphia Phillies. |
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August 19, 2013 | Lakewood BlueClaws activated RHP Mark Leiter from the temporarily inactive list. |
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August 17, 2013 | RHP Mark Leiter assigned to Lakewood BlueClaws from GCL Phillies. |
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August 14, 2013 | Mark Leiter assigned to GCL Phillies from Clearwater Threshers. |
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August 13, 2013 | Mark Leiter assigned to Clearwater Threshers from GCL Phillies. |
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July 8, 2013 | Mark Leiter assigned to GCL Phillies from Clearwater Threshers. |
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July 5, 2013 | Mark Leiter assigned to Clearwater Threshers from GCL Phillies. |
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June 21, 2013 | Mark Leiter assigned to GCL Phillies. |
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June 12, 2013 | Philadelphia Phillies signed RHP Mark Leiter. |
+ Show More Transactions
Awards
FSL Pitcher of the Week
| Week | ||
|---|---|---|
| 07/21/2014 | Clearwater Threshers | FSL |
FSL Mid-Season All-Star
| Year | ||
|---|---|---|
| 2015 | Clearwater Threshers | FSL |
INT Pitcher of the Month
| Month | ||
|---|---|---|
| 07/2021 | Toledo Mud Hens | AAA E |
League Rankings
Games Played
| BP | ||
|---|---|---|
| 2026 | 5 | in AL |
| 2023 | 69 | in NL |
Hit By Pitch
| HBP | ||
|---|---|---|
| 2026 | 1 | in AL |
| 2023 | 8 | in NL |
Hits
| H | ||
|---|---|---|
| 2026 | 10 | in AL |
At Bats
| AB | ||
|---|---|---|
| 2026 | 23 | in AL |
Losses
| Losses | ||
|---|---|---|
| 2026 | 1 | in AL |