Players / Player profile
ATH · P

Jeffrey Springs

Age 34 B/T L/L 6′3″, 218 lb USA MLB debut 2018
40-man
  • Free agent est. 1 yr × $2.2M ($1M–$5M) if his club option is declined
    1 caution
    • His $15.0M club option for 2027 is expected to be declined (projected value below it); the decision comes about five days after the World Series.
  • Injured list 2026: Right hip discomfort (Aug 4–Aug 19)
Keystone Stuff 96 31st pct
2026 fWAR −0.4
Projected 2027 WAR 0.3 Keystone Marcel+ at 142 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 2,464 pitches

Keystone Stuff 96 Keystone Stuff: 96, 31st percentile
Keystone Location 108 Keystone Location: 108, 84th percentile
Keystone Pitching 99 Keystone Pitching: 99, 48th percentile
Run value (xRV) −0.70 Run value (xRV): −0.70, 13th percentile
Strikeout % 17.8% Strikeout %: 17.8%, 17th percentile
Walk % 9.0% Walk %: 9.0%, 47th percentile
Whiff % 22.9% Whiff %: 22.9%, 31st percentile
Chase % 30.0% Chase %: 30.0%, 47th percentile
Fastball velo 91.3 Fastball velo: 91.3, 8th percentile
Extension 6.4 ft Extension: 6.4 ft, 43rd percentile
142.2 IP6.18 ERA6.02 FIP 47° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →4SCHSLSTFC
LHP · arm angle 47° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Four-seam43% use43%91.316.7+9.98710216%−0.90
Changeup25% use25%79.56.7+12.911210635%+0.23
Slider22% use22%84.22.1−4.010011223%−1.51
Sweeper6% use6%77.61.0−12.51069713%−0.81
Cutter4% use4%87.59.8+1.4789514%+0.17
Weak pitch to watch

Four-seam grades 87 with below-average expected results; his changeup grades 112. The best case is against righties: the changeup is worth +1.1 runs per 100 pitches more, 1.7 standard errors (572 and 752 pitches), short of the 2 needed. No mix change until it clears.

Most similar pitchers

Pitches like Springs: same hand, shape, slot and mix

SimilarityPlayerStuff’26 WAR’27 proj2027
59Quinn Mathews STL · ’00940.81.1Pre-arb
59Patrick Sandoval BOS · ’961061.31.3Free agent
56Robbie Ray SD · ’91960.90.7Free agent
51Patrick Corbin TOR · ’89900.40.5Free agent
50Noah Cameron KC · ’99992.82.4Pre-arb

Patrick Sandoval (similarity 59, 1.3 WAR projected for 2027), Robbie Ray (similarity 56, 0.7 WAR projected for 2027) are free agents this winter: a similar arsenal available without trading talent, at a free agent’s price. Opportunity Finder →

Same-handed pitchers nearest on fastball velocity and shape, arm angle, extension, pitch mix, secondary shapes, Stuff, whiff rate and workload. 2026 regulars only.

Pitch locations · 2026

Where each pitch finishes, by batter side

Four-seam 42%
44% zone
Changeup 32%
25% zone
Slider 15%
54% zone
Sweeper 5%
43% zone
Cutter 5%
40% zone

Where each pitch finishes, catcher’s view. The bar marks the batter’s side; the box is an average strike zone. Pitches with 40+ thrown to this side.

Contract & projection

Club control (RosterResource) · Keystone projected WAR

2027 0.3 WAR Club option $15.0M
2028 −0.1 WAR Free agent
2029 −0.4 WAR Free agent
2030 −0.6 WAR Free agent

His 2027 is a $15.0M club option, decided by the Athletics ≈ Nov 1–5. The Free-Agent Board expects it declined, so it prices him as a free agent. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AAStockton Ports3313 IP 3 IP · 3.00 ERA · 25.0% K · 0.0% BB

ABS challenges · 2026

Baseball Savant

As pitcher 100% 1/1 won · +0.1 runs
Keystone is an independent portfolio project. It is not affiliated with Major League Baseball or any club. Data: MLB Stats API, Baseball Savant, FanGraphs. Used under their terms for individual, non-commercial use.