SEA · P

Simeon Woods Richardson

Age 26 B/T R/R 6′3″, 210 lb USA MLB debut 2022

Keystone Stuff 87 6th pct

2026 fWAR −0.5

Projected 2027 WAR 0.7 Keystone Marcel+ at 114 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,161 pitches

Keystone Stuff 87

Keystone Location 103

Keystone Pitching 85

Run value (xRV) −1.42

Strikeout % 13.2%

Walk % 12.2%

Whiff % 18.5%

Chase % 22.2%

Fastball velo 92.6

Extension 6.7 ft

66.0 IP6.68 ERA5.83 FIP 48° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 48° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam43% use	43%	92.6	18.4	+5.7	87	103	19%	−0.03
Splitter25% use	25%	86.8	6.9	+11.5	93	90	20%	−3.67
Slider22% use	22%	86.0	6.0	−4.0	98	110	19%	−2.16
Curveball10% use	10%	76.8	−13.8	−6.9	86	108	12%	−0.17

No mix change or new pitch clears its bar. The arsenal is efficient for its shapes.

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
69	Zac Gallen AZ · ’95	90	−0.1	0.6	Free agent
67	Casey Mize SD · ’97	90	2.3	2.1	Free agent
61	Tomoyuki Sugano COL · ’89	84	0.4	−0.1	Free agent
61	Tanner Gordon COL · ’97	80	0.4	0.5	—
56	Mike Burrows HOU · ’99	90	−0.4	0.5	Pre-arb

Zac Gallen (similarity 69, 0.6 WAR projected for 2027), Casey Mize (similarity 67, 2.1 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 47%

53% zone

Splitter 29%

29% zone

Curveball 13%

50% zone

Slider 12%

41% 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 0.7 WAR —

2028 0.7 WAR —

2029 0.7 WAR —

2030 0.7 WAR —

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026AAA	AAA	Tacoma Rainiers	25	9	33.2 IP	33.2 IP · 3.74 ERA · 19.7% K · 9.9% BB
2025AAA	AAA	St. Paul Saints	24	5	22.1 IP	22.1 IP · 4.43 ERA · 28.1% K · 6.3% BB