What years did Geoff Hartlieb play?

Geoff Hartlieb played in Major League Baseball from 2019 to 2026.

Was Geoff Hartlieb a pitcher?

Yes. Geoff Hartlieb pitched in the major leagues, recording 3 wins and 103 strikeouts.

What are Geoff Hartlieb's career stats?

In 86 games, Geoff Hartlieb has gone 3-2 with a 7.16 ERA, 103 strikeouts, and 110.2 innings pitched.

What position does Geoff Hartlieb play?

Geoff Hartlieb plays primarily as a pitcher, the position where he has appeared in the most games.

How tall is Geoff Hartlieb and how much does he weigh?

Geoff Hartlieb is listed at 6 feet 5 inches and 240 pounds.

What number does Geoff Hartlieb wear?

Geoff Hartlieb wears number 31, according to MLB's 2026 roster data.

What was Geoff Hartlieb's career ERA?

Geoff Hartlieb finished with a 7.16 career ERA, going 3-2 with 103 strikeouts.

How many strikeouts did Geoff Hartlieb have?

Geoff Hartlieb recorded 103 career strikeouts.

Geoff Hartlieb

Pitcher · Career Stats, Bio & Records (2019-2026)

Geoff Hartlieb is a pitcher who has played in Major League Baseball since 2019 for 7 teams, including the Pittsburgh Pirates, a span of 8 seasons. Across 86 career appearances, he has gone 3-2 with a 7.16 ERA and 103 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 October 15, 2026

Active Player

W–L 3–2

ERA 7.16

WHIP 1.86

SO 103

Pitcher PIV thru 2025 -1240.9

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'5" / 240 lb
Born: 12/9/1993 in Highland Park, IL, USA
MLB Debut: 2019-05-18
Jersey: #31

Full name: Geoffery Thomas Hartlieb

📊 Compare This Player 📈 View Career Timeline

Career Pitching Statistics

Geoff Hartlieb — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
3	2	86	0	0	0	0	110.2	131	88	14	75	103	7.16	-1240.9

Career ERA 7.16 vs. league average 4.26 across their career seasons — 67.8% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Geoff Hartlieb Stats, Bio & Career Records
Year	Team	Lg	W	L	G	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2019	PIT	NL	0	1	29	35.0	52	35	18	38	9.00	4.51 (-100%)	-920.4
2020	PIT	NL	1	0	21	22.1	16	9	19	19	3.63	4.45 (+19%)	-320.5
2021	PIT	NL	0	0	4	4.2	3	4	5	4	7.71	—	0.0
2021	NYN	NL	0	0	3	4.1	7	7	6	5	14.54	—	0.0
2023	MIA	NL	0	0	2	4.0	2	1	3	3	2.25	—	0.0
2024	COL	NL	0	0	5	9.0	13	9	4	7	9.00	4.08 (-121%)	0.0
2025	NYA	AL	0	0	2	1.1	5	6	4	4	40.50	—	0.0
2025	DET	AL	0	0	2	2.0	3	2	2	1	9.00	—	0.0
2026	ATH	AL	2	1	18	28.0	30	15	14	22	4.82	4.18 (-15%)	-
Career · 9 seasons			3	2	86	110.2	131	88	75	103	7.16	—	-1,241

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

Geoff Hartlieb — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
68	0	0	0	0	0	0	0	0	0	0	.000	.000	.000	.000	0

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Geoff Hartlieb — Season-by-Season Batting
Year	Team	Lg	G	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2019	PIT	NL	29	.000	—	—	—	—	0.0
2020	PIT	NL	21	.000	—	—	—	—	0.0
2021	PIT	NL	4	.000	—	—	—	—	0.0
2021	NYN	NL	3	.000	—	—	—	—	0.0
2023	MIA	NL	2	.000	—	—	—	—	0.0
2024	COL	NL	5	.000	—	—	—	—	0.0
2025	NYA	AL	2	.000	—	—	—	—	0.0
2025	DET	AL	2	.000	—	—	—	—	0.0
Career · 8 seasons			68	—	—	—	—	—	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.

Game Log & Splits

View full game log (136 games) →

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

Batting — Home / Away

Geoff Hartlieb — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	34	0	0	0	0	0	—
Away	34	0	0	0	0	0	—

Pitching — Home / Away

Geoff Hartlieb — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	34	42.0	48	40	39	39	8.57
Away	34	40.2	53	33	22	42	7.30

Last 10 Games — Pitching

Geoff Hartlieb — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2025-07-25	DET	TOR	—	1.0	0	0	0	2	1	0
2025-07-24	DET	TOR	—	1.0	3	2	2	0	0	1
2025-07-08	NYY	SEA	—	0.1	3	3	3	1	1	1
2025-07-01	NYY	TOR	—	1.0	2	3	3	3	3	0
2024-06-21	COL	WAS	—	3.0	4	3	3	0	2	0
2024-06-17	COL	LAD	—	1.2	4	4	4	3	1	0
2024-06-15	COL	PIT	—	1.1	1	2	1	0	1	1
2024-06-12	COL	MIN	—	1.0	2	0	0	0	1	0
2024-06-09	COL	STL	—	2.0	2	1	1	1	2	0
2023-09-02	MIA	WAS	—	3.0	1	0	0	2	1	0

Fielding Statistics

Career Fielding Totals by Position

Geoff Hartlieb — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	68	0	7	8	1	0

Season-by-Season Fielding

Geoff Hartlieb — Season-by-Season Fielding
Year	Team	Pos	G	PO	A	E
2019	PIT	P	29	2	5	0
2020	PIT	P	21	2	3	1
2021	PIT	P	4	0	0	0
2021	NYN	P	3	0	0	0
2023	MIA	P	2	0	0	0
2024	COL	P	5	2	0	0
2025	NYA	P	2	0	0	0
2025	DET	P	2	1	0	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Geoff Hartlieb — Career Games by Position
Position	Games
Pitcher	68

Geoff Hartlieb: the record in brief

Active since a debut on May 18, 2019, Geoff Hartlieb has a record on this page that is still being added to. The season rows list, in order, the Pittsburgh Pirates (2019 to 2021), the New York Mets (2021), the Miami Marlins (2023), the Colorado Rockies (2024), the New York Yankees (2025), and the Detroit Tigers (2025). Hartlieb played primarily as a pitcher and batted and threw right-handed. The bio adds a birth date on December 9, 1993, in Highland Park, IL, USA and a listed size of 6 feet, 5 inches and 240 pounds. Hartlieb's full given name, per the bio, is Geoffery Thomas Hartlieb.

Hartlieb has gone 3-2 with a 7.16 ERA in 86 games, 0 of them starts. The totals include 103 strikeouts. The league ERA over Hartlieb's seasons was 4.26, so the 7.16 figure ran 67.8% worse than average. 2020 was Hartlieb's sharpest full season, a 3.63 ERA against the league's 4.45.

Hartlieb appears at one position only: pitcher, in 68 games. On the mound, the fielding record shows 1 errors alongside 7 putouts and 8 assists.

Retrosheet box scores cover 136 of Hartlieb's games, and the full game log is linked from the splits section.

Frequently Asked Questions about Geoff Hartlieb

What years did Geoff Hartlieb play?: Geoff Hartlieb played in Major League Baseball from 2019 to 2026.
Was Geoff Hartlieb a pitcher?: Yes. Geoff Hartlieb pitched in the major leagues, recording 3 wins and 103 strikeouts.
What teams has Geoff Hartlieb played for?: Geoff Hartlieb has played for 7 teams: the Pittsburgh Pirates (2019–2021), the New York Mets (2021), the Miami Marlins (2023), the Colorado Rockies (2024), the New York Yankees (2025), the Detroit Tigers (2025), and the Athletics (2026).
What are Geoff Hartlieb's career stats?: In 86 games, Geoff Hartlieb has gone 3-2 with a 7.16 ERA, 103 strikeouts, and 110.2 innings pitched.
What position does Geoff Hartlieb play?: Geoff Hartlieb plays primarily as a pitcher, the position where he has appeared in the most games.
How tall is Geoff Hartlieb and how much does he weigh?: Geoff Hartlieb is listed at 6 feet 5 inches and 240 pounds.
What number does Geoff Hartlieb wear?: Geoff Hartlieb wears number 31, according to MLB's 2026 roster data.
What was Geoff Hartlieb's career ERA?: Geoff Hartlieb finished with a 7.16 career ERA, going 3-2 with 103 strikeouts.
How many strikeouts did Geoff Hartlieb have?: Geoff Hartlieb recorded 103 career strikeouts.