CIN · P

Brandon Williamson

Age 28 B/T R/L 6′6″, 210 lb USA MLB debut 2023

40-man

Cincinnati’s roster as it stands on the 40-man, off the 26-man (call-up depth)
Injured list 2026: Left shoulder fatigue (Apr 30–Sep 1)
Trade read Available at a price: CIN 16% playoff odds; control through 2029.

Keystone Stuff 94 24th pct

2026 fWAR −0.1

Projected 2027 WAR 0.0 Keystone Marcel+ at 96 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 907 pitches

Keystone Stuff 94

Keystone Location 91

Keystone Pitching 87

Run value (xRV) −1.41

Strikeout % 15.6%

Walk % 13.0%

Whiff % 23.5%

Chase % 24.4%

Fastball velo 93.0

Extension 6.0 ft

52.2 IP5.30 ERA5.89 FIP 41° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

LHP · arm angle 41° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Cutter33% use	33%	89.7	9.9	−1.9	96	101	19%	+0.25
Changeup21% use	21%	85.4	6.6	+16.4	96	92	36%	−1.46
Four-seam17% use	17%	92.9	17.1	+8.7	86	75	12%	−4.69
Sweeper11% use	11%	81.7	2.0	−13.4	119	100	41%	+1.50
Curveball9% use	9%	75.1	−11.5	−12.1	94	91	6%	−0.60
Sinker8% use	8%	93.1	14.5	+13.2	83	106	10%	−6.01

Weak pitch to watch

Changeup grades 96 with below-average expected results; his sweeper grades 119. Neither side has 60+ of each pitch. No mix change until it clears.

Weak pitch to watch

Four-seam grades 86 with below-average expected results; his sweeper grades 119. Neither side has 60+ of each pitch. No mix change until it clears.

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
65	Foster Griffin CLE · ’95	100	2.6	1.8	Free agent
56	Zac Thornton NYM · ’02	101	0.7	1.0	Pre-arb
47	Jose Quintana COL · ’89	84	−0.1	0.1	Free agent
40	Andrew Abbott CIN · ’99	100	1.4	2.0	Arb
39	Tyler Alexander TEX · ’94	96	1.2	0.6	Free agent

Foster Griffin (similarity 65, 1.8 WAR projected for 2027) is a free agent 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

Cutter 34%

44% zone

Changeup 27%

32% zone

Four-seam 18%

40% zone

Curveball 10%

35% zone

Sinker 7%

46% 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 0.0 WAR Arbitration $1.1M*

2028 0.0 WAR Arbitration $1.6M*

2029 −0.2 WAR Arbitration $1.6M*

2030 −0.3 WAR Free agent

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026AA	AA	Chattanooga Lookouts	28	1	2 IP	2 IP · 4.50 ERA · 33.3% K · 22.2% BB
2026AAA	AAA	Louisville Bats	28	5	14.2 IP	14.2 IP · 6.14 ERA · 15.5% K · 14.1% BB