Mark Leiter

Pitcher · Career Stats, Bio & Records (2017-2026)

Mark Leiter is a pitcher who has played in Major League Baseball since 2017 for 5 teams, including the Philadelphia Phillies, a span of 10 seasons. Across 306 career appearances, he has gone 16-30 with a 4.57 ERA and 434 strikeouts.

W (Wins):
Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):
Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):
For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):
Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated

Active Player
W–L 16–30
ERA 4.57
WHIP 1.33
SO 434
Pitcher PIV thru 2025 -746.9
Position
Pitcher
Bats / Throws
R / R
Height / Weight
6'0" / 210 lb
Born
3/13/1991 in Fort Lauderdale, FL, USA
MLB Debut
2017-04-28

Full name: Mark Edward Leiter

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Career Pitching Statistics

Mark Leiter — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
16 30 306 15 0 0 13 386.0 370 196 57 142 434 4.57 -746.9

Career ERA 4.57 vs. league average 4.17 across their career seasons — 9.5% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Mark Leiter (b. 1991) Stats, Bio & Career Records
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
2017 PHI NL 3 6 27 11 0 0 0 90.2 90 50 31 84 4.96 4.36 (-14%) -1779.2
2018 PHI NL 0 1 12 0 0 0 0 16.2 22 10 8 13 5.40 4.15 (-30%) -1238.2
2018 TOR AL 0 0 8 0 0 0 0 6.2 13 10 4 9 13.50 — 0.0
2022 CHN NL 2 7 35 4 0 0 3 67.2 52 30 25 73 3.99 3.97 (-1%) -552.1
2023 CHN NL 1 3 69 0 0 0 4 64.1 48 25 24 77 3.50 4.33 (+19%) 918.6
2024 CHN NL 2 4 39 0 0 0 0 36.1 27 17 13 53 4.21 4.08 (-3%) 1791.3
2024 NYA AL 2 1 21 0 0 0 0 21.2 28 12 9 33 4.98 4.08 (-22%) -631.2
2025 NYA AL 6 7 59 0 0 0 2 48.1 57 26 17 54 4.84 4.16 (-16%) 743.9
2026 ATH AL 0 1 36 0 0 0 4 33.2 33 16 11 38 4.28 4.18 (-2%) -
Career · 9 seasons 16 30 306 15 0 0 13 386.0 370 196 142 434 4.57 — -747

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

Mark Leiter — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
270 28 0 2 0 0 0 0 0 0 14 .071 .071 .071 .143 0

Career AVG .071 vs. league average .247 across their career seasons — 71.1% below league average.

Career OBP .071 vs. league average .317 across their career seasons — 77.5% below league average.

Career SLG .071 vs. league average .408 across their career seasons — 82.5% below league average.

Career OPS .143 vs. league average .725 across their career seasons — 80.3% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Mark Leiter — Season-by-Season Batting
Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
2017 PHI NL 27 25 0 2 0 0 0 0 0 0 12 .080 — — — — 0.0
2018 PHI NL 12 3 0 0 0 0 0 0 0 0 2 .000 — — — — 0.0
2018 TOR AL 8 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2022 CHN NL 35 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2023 CHN NL 69 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2024 CHN NL 39 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2024 NYA AL 21 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2025 NYA AL 59 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
Career · 8 seasons 270 28 0 2 0 0 0 0 0 0 14 .071 — — — — 0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Postseason Statistics

Playoff Career Batting

Mark Leiter — Playoff Career Batting
G AB R H 2B 3B HR RBI BB SO AVG
6 0 0 0 0 0 0 0 0 0 .000

Playoff Batting by Year

Mark Leiter — Playoff Batting by Year
Year Round Team G AB R H 2B 3B HR RBI BB SO AVG
2024 ALCS NYA 2 0 0 0 0 0 0 0 0 0 .000
2024 WS NYA 4 0 0 0 0 0 0 0 0 0 .000

Playoff Career Pitching

Mark Leiter — Playoff Career Pitching
W L G GS SV IP H ER BB SO ERA
1 0 6 0 0 5.1 3 1 5 5 1.69

Playoff Pitching by Year

Mark Leiter — Playoff Pitching by Year
Year Round Team W L G GS SV IP H ER BB SO ERA
2024 ALCS NYA 1 0 2 0 0 2.1 2 1 3 2 3.86
2024 WS NYA 0 0 4 0 0 3.0 1 0 2 3 0.00

Game Log & Splits

View full game log (540 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Mark Leiter — Batting — Home / Away
SplitGABRHHRRBIAVG
Home137150100.067
Away133130100.077

Pitching — Home / Away

Mark Leiter — Pitching — Home / Away
SplitGIPHERBBSOERA
Home137188.217186722184.10
Away133163.216694591785.17

Last 10 Games — Pitching

Mark Leiter — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
2025-09-26 NYYBAL — 0.2000210
2025-09-19 NYYBAL — 1.0100010
2025-09-16 NYYMIN W 1.2100000
2025-09-14 NYYBOS — 1.0100000
2025-09-10 NYYDET — 0.1211010
2025-09-09 NYYDET — 0.0244100
2025-09-05 NYYTOR — 1.0111120
2025-08-28 NYYCHW — 1.0000010
2025-08-25 NYYWAS — 0.1111011
2025-08-22 NYYBOS L 1.0211000

Fielding Statistics

Career Fielding Totals by Position

Mark Leiter — Career Fielding Totals by Position
Position G GS PO A E DP
P 270 15 22 28 2 2

Season-by-Season Fielding

Mark Leiter — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
2017 PHI P 27 11 10 8 0 0
2018 PHI P 12 0 2 1 0 0
2018 TOR P 8 0 0 1 0 0
2022 CHN P 35 4 2 9 0 2
2023 CHN P 69 0 5 3 0 0
2024 CHN P 39 0 1 2 0 0
2024 NYA P 21 0 0 2 1 0
2025 NYA P 59 0 2 2 1 0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Mark Leiter — Career Games by Position
Position Games
Pitcher 270

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

  1. 98
    Keegan Akin
    16-23, 4.55 ERA
  2. 95
    Robert Stephenson
    19-20, 4.59 ERA
  3. 84
    Austin Voth
    17-20, 4.84 ERA
  4. 79
    Heath Hembree
    21-13, 4.37 ERA
  5. 78
    Trent Thornton
    19-24, 4.27 ERA
  6. 72
    Trevor May
    36-28, 4.24 ERA

Mark Leiter: the record in brief

The debut date in the bio is April 28, 2017; Mark Leiter is an active player, and this profile updates as the season goes on. Club by club, the record runs the Philadelphia Phillies (2017 to 2018), the Toronto Blue Jays (2018), the Chicago Cubs (2022 through 2024), and the New York Yankees (2024 to 2025). Leiter, a pitcher by primary position, both batted and threw right-handed. The recorded size is 6-foot-0 and 210 pounds. Leiter was born on March 13, 1991, in Fort Lauderdale, FL, USA. Mark Leiter was the playing name; the full given name is Mark Edward.

Leiter's career pitching line is 16 wins, 30 losses and a 4.57 ERA over 306 appearances. Also on Leiter's record: 434 strikeouts and 13 saves. Against a 4.17 league ERA for the same seasons, the 4.57 mark was 9.5% worse. 2025 brought Leiter a season-high 6 wins. Leiter struck out 84 batters in 2017, a career high. 2023 was Leiter's sharpest full season, a 3.50 ERA against the league's 4.33.

Frequently Asked Questions about Mark Leiter

What years did Mark Leiter play?
Mark Leiter played in Major League Baseball from 2017 to 2026.
Was Mark Leiter a pitcher?
Yes. Mark Leiter pitched in the major leagues, recording 16 wins and 434 strikeouts.
How many home runs did Mark Leiter hit?
Mark Leiter hit 0 career home runs with 2 hits.
What was Mark Leiter's career batting average?
Mark Leiter batted .071 over his career, with 2 hits in 28 at bats.
What was Mark Leiter's career ERA?
Mark Leiter finished with a 4.57 career ERA, going 16-30 with 434 strikeouts.
How many strikeouts did Mark Leiter have?
Mark Leiter recorded 434 career strikeouts.