Jonathan Bowlan

Active

Philadelphia Phillies · RP

Age 296' 6" · 240 lbsThrows Right

#402 Current#682 Preseason

FBaseball Overview

Coming off a respectable start to 2026 with a 2-0 record and a 3.70 ERA through 24 innings, Bowlan remains a depth pitching option for fantasy managers seeking strikeout upside in middle relief or spot-start situations. His 27 strikeouts early in the season align with his 2025 trajectory, where he posted 46 K across 44 innings, though his ERA and WHIP have both shown modest improvement this year. The primary risk lies in limited volume and win opportunities given his role, which caps his ceiling in wins and saves categories despite solid strikeout potential. Bowlan represents a late-round speculative pitcher who could provide useful strikeout accumulation in deeper leagues if he earns increased innings.

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2023	Kansas City Royals	2	1	0	1	0	3.00	1.67	3	3.0	0
2024	Kansas City Royals	1	1	0	1	0	13.50	3.38	3	2.2	3
2025	Kansas City Royals	34	1	1	2	0	3.86	1.22	46	44.1	17
2026	Philadelphia Phillies	59	0	2	2	2	3.36	1.03	73	56.1	15
Career	Totals	96	3	3	6	2	3.81	1.18	125	106.1	35

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2018	Idaho Falls Chukars	9	9	1	4	0	6.94	1.71	23	35.0	9
2019	2 teams▼	26	23	11	5	1	3.14	0.99	150	146	23
2021	Northwest Arkansas Naturals	4	4	2	0	0	1.59	0.94	25	17.0	3
2022	3 teams▼	17	17	1	4	0	5.92	1.73	62	62.1	22
2023	2 teams▼	24	21	7	11	1	5.91	1.58	105	102	45
2024	Omaha Storm Chasers	35	16	12	4	0	4.67	1.35	98	104.0	34
2025	Omaha Storm Chasers	24	0	3	0	5	2.25	0.94	45	36.0	11
2026	Lehigh Valley IronPigs	1	0	0	0	0	0.00	0.00	2	1.0	0
Career	Totals	140	90	37	28	7	4.51	1.32	510	503.1	147

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Last Week / Last Month

Current season · MLB only

7 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
7	0	6.2	0-1	0	6.75	1.20	11	1

30 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
30	0	29.0	0-2	2	3.41	0.90	38	9

Game Log2026 MLB

Loading game log…

Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo97.1 mph

Avg Spin2318 rpm

Whiff %31.3%

K %31.9%

BB %6.6%

Hard Hit %36.5%

Barrel %7.3%

xERA2.85

xBA Against0.193

xSLG Against0.323

BA Against0.207

SLG Against0.351

What These Stats Mean

FB Velo — Average fastball velocity. Harder throwers generate more swings and misses, setting up every other pitch in their arsenal. Velocity is the foundation of strikeout upside.

Avg Spin — Average spin rate across all pitches. Higher spin creates more movement and makes pitches harder to square up — elite spinners run better strikeout and batting average against numbers.

Whiff % — Swings-and-misses per swing. The most direct measure of a pitcher's ability to miss bats and the best leading indicator of strikeout rate.

K % — Strikeout rate per batter faced. The core fantasy pitching stat — high K% means reliable strikeout totals that hold up even in shorter starts.

BB % — Walk rate per batter faced. The primary control metric. High BB% tanks ERA and WHIP and keeps baserunners on constantly. Elite starters typically run below 7%.

Hard Hit % — Percentage of batted balls hit 95 mph or harder against. Low hard-hit% means weak contact, protecting both ERA and the defense behind the pitcher.

Barrel % — Percentage of batted balls barreled against. The most direct home run predictor — low barrel% pitchers rarely give up long balls.

xERA — Expected ERA based on contact quality allowed, removing the effect of sequencing, luck, and defense. Better predictor of future ERA than ERA itself.

xBA Against — Expected batting average opponents should hit based on contact quality. A gap between xBA and actual BA indicates unsustainable luck in either direction.

xSLG Against — Expected slugging allowed based on contact quality. High xSLG against predicts future extra-base damage; low xSLG means the pitcher is genuinely suppressing power.

BA Against — Actual batting average opponents are hitting — a key WHIP component. Check xBA to see if the number is sustainable.

SLG Against — Actual slugging allowed. Captures hits, doubles, triples, and home runs — lower means the pitcher is limiting the power damage he gives up.

GB% — Ground ball rate. High GB% pitchers generate double plays, limit home runs, and keep the ball in the park — great for protecting ERA and WHIP ratios.

FB% — Fly ball rate. High FB% pitchers give up more air contact — dangerous when combined with high exit velocity, less so when contact is soft.

Loading player data...

Year

Team

ERA

WHIP

2023

Kansas City Royals

3.00

1.67

3.0

2024

Kansas City Royals

13.50

3.38

2.2

2025

Kansas City Royals

3.86

1.22

44.1

2026

Philadelphia Phillies

3.36

1.03

56.1

Career

Totals

3.81

1.18

125

106.1

Year

Team

ERA

WHIP

2018

Idaho Falls Chukars

6.94

1.71

35.0

2019

2 teams▼

3.14

0.99

150

146

2021

Northwest Arkansas Naturals

1.59

0.94

17.0

2022

3 teams▼

5.92

1.73

62.1

2023

2 teams▼

5.91

1.58

105

102

2024

Omaha Storm Chasers

4.67

1.35

104.0

2025

Omaha Storm Chasers

2.25

0.94

36.0

2026

Lehigh Valley IronPigs

0.00

1.0

Career

Totals

140

4.51

1.32

510

503.1

147

W-L

ERA

WHIP

6.2

0-1

6.75

1.20

W-L

ERA

WHIP

29.0

0-2

3.41

0.90