TEX · P

Chase Silseth

Age 26 B/T R/R 6′0″, 217 lb USA MLB debut 2022

40-man

Texas’ roster as it stands bullpen · 57 IP · 0.3 WAR in the role
Trade read Available at a price: TEX 25% playoff odds; control through 2030.

Keystone Stuff 98 42nd pct

2026 fWAR 0.4

Projected 2027 WAR 0.3 at 61 IP · 0.3 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,089 pitches

Keystone Stuff 98

Keystone Location 99

Keystone Pitching 98

Run value (xRV) +0.24

Strikeout % 27.3%

Walk % 12.9%

Whiff % 32.8%

Chase % 30.3%

Fastball velo 95.8

Extension 5.9 ft

60.0 IP3.60 ERA3.93 FIP 35° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 35° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam42% use	42%	95.9	16.1	+6.8	97	103	38%	+0.29
Splitter24% use	24%	88.2	1.7	+10.6	97	82	38%	−0.46
Sweeper21% use	21%	85.9	−0.7	−10.4	108	110	30%	+2.02
Sinker13% use	13%	95.7	9.4	+14.1	89	100	9%	−1.54

Weak pitch to watch

Sinker grades 89 with below-average expected results; his sweeper grades 108. The best case is against righties: the sweeper is worth +1.1 runs per 100 pitches more, 1.4 standard errors (179 and 89 pitches), short of the 2 needed. No mix change until it clears.

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
70	Luis Medina ATH · ’99	103	0.9	0.6	Arb
56	Ryne Stanek STL · ’91	102	0.0	−0.1	Free agent
51	Luke Weaver PIT · ’93	105	1.4	0.7	Signed $12.5M
49	Anthony Nunez BAL · ’01	109	0.6	0.6	—
49	Raisel Iglesias ATL · ’90	92	1.1	0.5	Free agent

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 35%

48% zone

Sweeper 32%

45% zone

Splitter 17%

23% zone

Sinker 16%

51% 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 Pre-arb $780K*

2028 0.3 WAR Arbitration $1.6M*

2029 0.3 WAR Arbitration $1.9M*

2030 0.3 WAR Arbitration $2.0M*

* 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
2025AAA	AAA	Salt Lake Bees	25	18	39 IP	39 IP · 3.23 ERA · 25.6% K · 14.3% BB
2025ROK	ROK	ACL Angels	25	5	7 IP	7 IP · 5.14 ERA · 38.7% K · 3.2% BB