Players / Player profile
CLE · P

Tanner Bibee

Age 27 B/T R/R 6′2″, 205 lb USA MLB debut 2023
40-man Dead-weight pitch
  • Cleveland’s roster as it stands #4 starter · 148 IP · 1.4 WAR in the role
  • Trade read Available at a price: CLE sits on the contender line (49% playoff odds, within a projected win of 50%), so it could buy or sell; control through 2030.
Keystone Stuff 99 46th pct
2026 fWAR 1.5
Projected 2027 WAR 1.8 at 182 IP · 1.4 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 2,968 pitches

Keystone Stuff 99 Keystone Stuff: 99, 46th percentile
Keystone Location 98 Keystone Location: 98, 44th percentile
Keystone Pitching 104 Keystone Pitching: 104, 74th percentile
Run value (xRV) −0.18 Run value (xRV): −0.18, 34th percentile
Strikeout % 19.0% Strikeout %: 19.0%, 27th percentile
Walk % 7.0% Walk %: 7.0%, 78th percentile
Whiff % 23.5% Whiff %: 23.5%, 38th percentile
Chase % 27.8% Chase %: 27.8%, 22nd percentile
Fastball velo 93.6 Fastball velo: 93.6, 36th percentile
Extension 6.6 ft Extension: 6.6 ft, 71st percentile
188.0 IP4.36 ERA4.52 FIP 55° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →FC4SSICHCUST
RHP · arm angle 55° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Cutter24% use24%85.82.1−6.91109131%−0.48
Four-seam23% use23%94.015.6+4.77910016%−0.59
Sinker21% use21%93.29.1+14.69910715%+0.02
Changeup15% use15%80.913.0+11.71179336%+0.96
Curveball11% use11%78.1−8.0−14.2939624%−0.43
Sweeper5% use5%82.5−0.6−16.410410617%−0.51
Dead weight

Four-seam grades 79 and gets below-average expected results on 23% usage. Against all hitters, moving about 11 of every 100 pitches to the changeup (117 Stuff), about 45% of his four-seams to them, is worth an estimated 2.6 runs per season, after a 50% haircut for diminishing returns. vs. lefties: the changeup is worth +1.5 runs per 100 pitches more, 2.2 standard errors (380 and 473 pitches; his own results against that side combined with Stuff and the league’s platoon split). vs. righties: the changeup is worth +1.8 runs per 100 pitches more, 2.4 standard errors (78 and 223 pitches; his own results against that side combined with Stuff and the league’s platoon split). His fastballs stay at 35%+.

Weak pitch to watch

Curveball grades 93 with below-average expected results; his changeup grades 117. The best case is against lefties: the changeup is worth +1.3 runs per 100 pitches more, 1.7 standard errors (380 and 208 pitches), short of the 2 needed. No mix change until it clears.

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
30Aaron Civale CHC · ’95960.80.7Free agent
19Drew Rasmussen TB · ’951125.03.4Club option $8.0M
14Walker Buehler SD · ’94951.50.5Free agent
9Gabriel Hughes COL · ’01971.11.3—
5Chase Shugart PHI · ’96104−0.10.0Pre-arb

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 27%
42% zone
Changeup 22%
40% zone
Cutter 21%
44% zone
Sinker 14%
51% zone
Curveball 12%
36% zone
Sweeper 4%
45% 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 1.8 WAR Guaranteed $7.4M
2028 1.7 WAR Guaranteed $10.4M
2029 1.6 WAR Guaranteed $21.4M
2030 1.3 WAR Club option $21.0M

Contract Studio →

ABS challenges · 2026

Baseball Savant

As pitcher 100% 1/1 won · 0.0 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.