PHI · P

Jonathan Bowlan

Age 29 B/T R/R 6′6″, 240 lb USA MLB debut 2023

40-man

Philadelphia’s roster as it stands late-inning relief · 58 IP · 0.4 WAR in the role
Injured list 2026: Right groin strain (Apr 13–Apr 28)
Trade read Available at a price: PHI 38% playoff odds; control through 2031.

Keystone Stuff 114 90th pct

2026 fWAR 0.8

Projected 2027 WAR 0.5 at 62 IP · 0.4 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 966 pitches

Keystone Stuff 114

Keystone Location 99

Keystone Pitching 107

Run value (xRV) +1.01

Strikeout % 31.9%

Walk % 6.6%

Whiff % 31.3%

Chase % 35.2%

Fastball velo 97.1

Extension 6.7 ft

56.1 IP3.35 ERA3.37 FIP 42° arm2 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 42° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam48% use	48%	97.1	18.0	+7.9	110	101	37%	+2.54
Slider19% use	19%	86.8	−1.5	−2.4	112	102	34%	+0.70
Changeup13% use	13%	90.5	5.5	+12.0	99	93	30%	+0.11
Sinker11% use	11%	97.1	12.5	+15.2	111	104	5%	−0.69
Sweeper8% use	8%	84.7	−1.5	−15.1	119	78	27%	−3.15

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

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
69	Michael Petersen MIA · ’94	115	1.5	0.6	Pre-arb
61	Trevor Megill MIL · ’93	121	2.5	1.5	Arb
59	Ryne Stanek STL · ’91	102	0.0	−0.1	Free agent
58	Bryan Abreu HOU · ’97	109	−0.3	0.6	Free agent
57	Victor Vodnik MIA · ’99	109	0.2	0.4	Arb

Bryan Abreu (similarity 58, 0.6 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

Four-seam 59%

45% zone

Changeup 23%

41% zone

Slider 15%

35% 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 0.5 WAR Pre-arb $780K*

2028 0.4 WAR Pre-arb $803K*

2029 0.3 WAR Arbitration $1.7M*

2030 0.2 WAR Arbitration $2.2M*

* 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
2026AAA	AAA	Lehigh Valley IronPigs	29	1	1 IP	1 IP · 0.00 ERA · 66.7% K · 0.0% BB
2025AAA	AAA	Omaha Storm Chasers	28	24	36 IP	36 IP · 2.25 ERA · 31.7% K · 7.7% BB