Joe Mantiply

Active

Toronto Blue Jays · Pitcher

Age 356' 4" · 219 lbsThrows Left

FBaseball Overview

At 35 years old, Mantiply arrives in Toronto as a veteran arm looking to bounce back after a disastrous 2025 campaign marked by a 15.83 ERA across limited innings. Early 2026 returns are encouraging, as he's posted a sharp 2.04 ERA with a 1.13 WHIP through 17.2 innings while striking out 16 batters, suggesting he may have found his footing in a new organization. The concern for fantasy managers is durability and role stability—his injury-plagued 2025 and age raise questions about whether he can sustain this early success over a full season. If healthy, Mantiply offers modest strikeout upside and solid ERA/WHIP potential, but he's best viewed as a waiver-wire depth piece rather than a reliable starter in most formats.

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2016	Detroit Tigers	5	0	0	0	0	16.88	3.38	2	2.2	2
2019	New York Yankees	1	0	1	0	0	9.00	1.67	2	3.0	2
2020	Arizona Diamondbacks	4	0	0	0	0	15.43	3.00	2	2.1	4
2021	Arizona Diamondbacks	57	0	0	3	0	3.40	1.56	38	39.2	17
2022	Arizona Diamondbacks	69	0	2	5	2	2.85	1.08	61	60.0	6
2023	Arizona Diamondbacks	35	3	2	2	0	4.62	1.13	28	39.0	9
2024	Arizona Diamondbacks	75	2	6	2	1	3.92	1.17	53	59.2	18
2025	Arizona Diamondbacks	10	0	0	1	0	15.83	3.00	8	9.2	3
2026	Toronto Blue Jays	20	0	2	0	0	2.42	1.12	20	22.1	5
Career	Totals	276	5	13	13	3	4.34	1.33	214	238.1	66

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
2013	Connecticut Tigers	13	12	0	1	0	2.04	1.16	30	35.1	10
2014	2 teams▼	46	0	6	3	9	2.52	1.11	86	82	22
2015	2 teams▼	39	0	4	2	3	2.27	1.07	51	63.1	13
2016	2 teams▼	56	1	4	2	1	2.73	1.06	69	59.1	12
2017	Scranton/Wilkes-Barre RailRiders	35	6	6	5	1	2.83	1.29	62	70.0	18
2019	3 teams▼	24	0	0	0	1	3.99	1.07	33	38.1	4
2021	Reno Aces	5	0	0	1	2	1.93	0.86	10	4.2	0
2023	3 teams▼	14	1	3	0	0	5.19	1.44	17	17.1	5
2025	3 teams▼	24	0	4	1	0	4.33	1.33	30	27.0	3
2026	2 teams▼	7	0	0	0	0	7.56	1.68	9	8.1	2
Career	Totals	265	21	28	15	17	3.02	1.17	397	408	92

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

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo88.6 mph

Avg Spin2091 rpm

Whiff %17.3%

K %21.4%

BB %4.8%

Hard Hit %44.3%

Barrel %9.8%

xERA5.02

xBA Against0.281

xSLG Against0.470

BA Against0.263

SLG Against0.382

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.

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Year

Team

ERA

WHIP

2016

Detroit Tigers

16.88

3.38

2.2

2019

New York Yankees

9.00

1.67

3.0

2020

Arizona Diamondbacks

15.43

3.00

2.1

2021

Arizona Diamondbacks

3.40

1.56

39.2

2022

Arizona Diamondbacks

2.85

1.08

60.0

2023

Arizona Diamondbacks

4.62

1.13

39.0

2024

Arizona Diamondbacks

3.92

1.17

59.2

2025

Arizona Diamondbacks

15.83

3.00

9.2

2026

Toronto Blue Jays

2.42

1.12

22.1

Career

Totals

276

4.34

1.33

214

238.1

Year

Team

ERA

WHIP

2013

Connecticut Tigers

2.04

1.16

35.1

2014

2 teams▼

2.52

1.11

2015

2 teams▼

2.27

1.07

63.1

2016

2 teams▼

2.73

1.06

59.1

2017

Scranton/Wilkes-Barre RailRiders

2.83

1.29

70.0

2019

3 teams▼

3.99

1.07

38.1

2021

Reno Aces

1.93

0.86

4.2

2023

3 teams▼

5.19

1.44

17.1

2025

3 teams▼

4.33

1.33

27.0

2026

2 teams▼

7.56

1.68

8.1

Career

Totals

265

3.02

1.17

397

408