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Geoff Hartlieb
RP · 
Oakland Athletics · #31
Bats/ThrowsR/R
Height6' 5"
Weight240 lbs
BirthplaceHighland, IL
MLB Debut2019
Draft2016: Rd 29, Pk 885 (PIT)
🪪Bio
Bats/ThrowsR/R
Height6' 5"
Weight240 lbs
BirthplaceHighland, IL
MLB Debut2019
Draft2016: Rd 29, Pk 885 (PIT)
📊Season Stats (2026)
ERA5.28
W-L1-1
IP15.1
K7
WHIP1.83
SV0
Full Stat Line
G9
GS0
QS0
HLD1
H19
ER9
HR1
BB9
K/94.11
WAR0.05
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.259
OBP.364
SLG.370
OPS.734
vs Right-Handed Batters
AVG.375
OBP.421
SLG.594
OPS1.015
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 5.28 | 15.1 | 7 | 9 | .322 |
| Target Field | 11.57 | 2.1 | 2 | 3 | .455 |
| AT&T Park | 0.00 | 2.0 | 1 | 1 | .000 |
| Angel Stadium | 13.50 | 0.2 | 0 | 0 | .500 |
| Chase Field | 27.00 | 0.1 | 0 | 2 | .000 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 0.00 | 2.0 | 1 | 0 | .286 |
| Last 15 Days | 0.00 | 2.0 | 1 | 0 | .286 |
| Last 30 Days | 0.00 | 2.0 | 1 | 0 | .286 |
| June | 5.19 | 8.2 | 3 | 3 | .314 |
| July | 7.71 | 4.2 | 3 | 6 | .353 |
| September | 0.00 | 2.0 | 1 | 0 | .286 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 93 | 38.3% | 46.2% | 24.4% | 12.2% | .211 | .327 | .356 |
| Slider | 76 | 31.3% | 39.5% | 37.1% | 37.1% | .250 | .276 | .210 |
| Cutter | 39 | 16.1% | 48.7% | 30.0% | 15.0% | .308 | .356 | .352 |
| Sinker | 35 | 14.4% | 45.7% | 52.4% | 28.6% | .636 | .671 | .321 |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| 4-Seam Fastball | 45 | 95.3 | 2,319 | +13.5" | +0.6" | 6.3 |
| Slider | 33 | 84.9 | 2,489 | -0.8" | -0.2" | 6.2 |
| Cutter | 19 | 91.5 | 2,487 | +9.0" | -0.0" | 6.2 |
| Sinker | 17 | 94.0 | 2,309 | +6.4" | +1.1" | 6.3 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
👥Team — Oakland Athletics
| Player | Pos | Key Stat |
|---|---|---|
| Nick Kurtz | 1B | .256 AVG |
| Joey Meneses | 1B | .150 AVG |
| Jeff McNeil | 2B | .268 AVG |
| Michael Stefanic | 2B | .375 AVG |
| Donovan Walton | 2B | .274 AVG |
| Zack Gelof | 3B | .256 AVG |
| Max Muncy | 3B | .214 AVG |
| Tommy White | 3B | .255 AVG |
| Jonah Heim | C | .215 AVG |
| Shea Langeliers | C | .263 AVG |
| Brian Serven | C | .232 AVG |
| Henry Bolte | CF | .274 AVG |
| Denzel Clarke | CF | .169 AVG |
| Tyler Soderstrom | LF | .245 AVG |
| Scott Barlow | Relief Pitcher | 6.48 ERA |
| Joel Kuhnel | Relief Pitcher | 4.84 ERA |
| Lawrence Butler | RF | .231 AVG |
| Carlos Cortes | RF | 9.00 ERA |
| Colby Thomas | RF | .202 AVG |
| Elvis Alvarado | RP | 4.00 ERA |
| Mason Barnett | RP | 7.08 ERA |
| Brady Basso | RP | 4.75 ERA |
| Scott Blewett | RP | 2.70 ERA |
| Ben Bowden | RP | 36.00 ERA |
| Hogan Harris | RP | 3.49 ERA |
| Seth Johnson | RP | 7.29 ERA |
| Hayden Juenger | RP | 9.00 ERA |
| Mark Leiter Jr. | RP | 4.28 ERA |
| Luis Medina | RP | 3.61 ERA |
| Jack Perkins | RP | 6.42 ERA |
| Taylor Rashi | RP | 7.94 ERA |
| Drew Rom | RP | 6.35 ERA |
| Chris Roycroft | RP | 7.31 ERA |
| Justin Sterner | RP | 6.12 ERA |
| Jose Suarez | RP | 5.87 ERA |
| Yunior Tur | RP | 21.86 ERA |
| Andy Ibanez | Second Baseman | .087 AVG |
| J.T. Ginn | SP | 3.71 ERA |
| Gage Jump | SP | 5.15 ERA |
| Jacob Lopez | SP | 4.71 ERA |
| Kade Morris | SP | 9.82 ERA |
| Jeffrey Springs | SP | 6.37 ERA |
| Darell Hernaiz | SS | .235 AVG |
| Joshua Kuroda-Grauer | SS | .417 AVG |
| Alika Williams | SS | .272 AVG |
| Jacob Wilson | SS | .266 AVG |
| Luis Severino | Starting Pitcher | 4.16 ERA |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for Geoff Hartlieb and every MLB game — available in the BlowOutAlert workspace.