Michael Wacha

35-Year-Old PitcherSP

Kansas City Royals

2026 Stats

W-L

5-6

ERA

3.45

WHIP

1.16

Rest-of-Season Projections

W-L

ERA

WHIP

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2026 Fantasy Outlook

Wacha was once again an effective starter for the Royals in 2025, though his results saw some regression pretty much across the board. He set career highs in starts (31) and innings (171.1) and had a 3.86 ERA, 1.22 WHIP and 126:45 K:BB to go along with a 10-13 record. It was his fourth straight season with double-digit wins, but his strikeout rate dropped nearly four points to a career-worst 17.6 percent. Wacha did a great job keeping the ball in the yard with a 0.78 HR/9, which ranked 10th among qualified starters, and ranked in the 89th percentile in average exit velocity. However, a 4.20 xERA and 4.56 xFIP indicate some trouble could be in store, and he's already walking a bit of a tightrope as he relies on limiting hard contact. Wacha's fantasy ceiling is capped due to the low strikeout numbers, but he's provided a strong ERA and WHIP the past four years. It's just worth keeping in mind the underlying numbers and risk of regression as he enters his age-34 season. Read Past Outlooks

RANKS

Rest of Season

Dynasty

From Preseason

#356

ADP

League Majors

Bats R

Throws R

40 Man Yes

Height 6'5"

Weight 215

DOB 7/1/1991

Born Iowa City, IA

College Texas A&M

Drafted 1st Rd 2012 STL

Allows six runs in loss

PKansas City Royals

July 9, 2026

Wacha (5-7) took the loss Thursday against the Mets, allowing six runs on six hits and three walks over 4.2 innings. He struck out five.

Analysis
Wacha held the Mets to one run through his first four innings, but he'd unravel in the fifth, when New York would score five runs, including three with two outs. Wacha's performances have been up and down of late -- he's gone 1-5 with a 5.33 ERA in his last eight outings (49 innings). The right-hander figures to head into the All-Star break with a 3.77 ERA, 1.19 WHIP and 96:34 K:BB across 19 starts (119.1 innings) this season.

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Pitching Stats

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2026 MLB Game Log

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Pitching Appearances Breakdown

Average Pitch Count

Last 10 Games

Last 5 Games

101

How many pitches does Michael Wacha generally throw?

1-10

11-20

21-30

31-40

41-50

51-60

61-70

71-80

81-90

91-100

101-110

111-120

121+

1-10

11-20

21-30

31-40

41-50

51-60

61-70

71-80

81-90

91-100

101-110

111-120

121+

1-10

11-20

21-30

31-40

41-50

51-60

61-70

71-80

81-90

91-100

101-110

111-120

121+

What part of the game does Michael Wacha generally pitch?

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

Extra

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

Extra

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

Extra

% Games Reaching Innings Threshold

% Games By Number of Innings Pitched

Left/Right Pitching Splits

Since 2024

-3%

BAA vs LHP

2026

-2%

BAA vs LHP

2025

-6%

BAA vs LHP

2024

Even Split

	BAA	Batters	K	BB	H	2B	3B	HR
Since 2024vs Left	.244	993	199	61	223	40	9	21
Since 2024vs Right	.251	872	163	60	199	41	5	24
2026vs Left	.238	269	58	17	59	9	2	7
2026vs Right	.242	195	33	14	43	14	2	6
2025vs Left	.245	372	63	23	84	13	4	5
2025vs Right	.260	344	63	22	82	16	2	10
2024vs Left	.247	352	78	21	80	18	3	9
2024vs Right	.246	333	67	24	74	11	1	8
More Splits→	View More Split Stats

Home/Away Pitching Splits

Since 2024

-9%

ERA at Home

2026

-13%

ERA at Home

2025

-5%

ERA on Road

2024

-24%

ERA at Home

	ERA	WHIP	IP	W	L	SV	K/9	BB/9	HR/9
Since 2024Home	3.39	1.19	225.1	15	13	0	7.5	2.2	0.8
Since 2024Away	3.74	1.20	228.2	13	14	0	6.8	2.6	1.0
2026Home	3.21	1.07	53.1	3	3	0	7.3	2.0	1.2
2026Away	3.67	1.24	61.1	2	3	0	7.0	2.8	0.9
2025Home	3.96	1.29	91.0	5	7	0	7.6	2.5	0.6
2025Away	3.75	1.15	81.2	5	6	0	5.4	2.2	1.0
2024Home	2.89	1.16	81.0	7	3	0	7.6	2.1	0.8
2024Away	3.78	1.23	85.2	6	5	0	8.1	2.7	1.1
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Stat Review

How does Michael Wacha compare to other starting pitchers?

This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.

K/BB

2.94

K/9

7.1

BB/9

2.4

HR/9

1.0

Fastball

93.2 mph

ERA

3.45

WHIP

1.16

BABIP

.277

GB/FB

1.13

Left On Base

75.8%

Exit Velocity

81.6 mph

Barrels/BBE

4.3%

Spin Rate

2010 rpm

Balls Hit 95+ MPH

22.4%

Swinging Strike

9.6%

Advanced Pitching Stats

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Defensive Stats

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Stats Vs Today's Lineup

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Past Fantasy Outlooks

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Pitching for his sixth team over the last six seasons, Wacha turned in arguably the best season of his career in 2024 with the Royals. He turned in enough innings to qualify for the ERA title for the first time since 2017, and Wacha's 3.35 ERA ranked 10th on the junior circuit. Wacha was also better than ever at suppressing hard contact, turning in an average exit velocity in the 89th percentile and hard-hit rate in the 92nd percentile. The strikeouts are going to be lacking. Wacha has never had 160 of them in a season, and a likely injured list stint or two would further hinder that total. That said, Wacha has been a quality source for ERA and WHIP three years running and he returns to a pretty good situation after re-upping with Kansas City on a multi-year deal.

Wacha recorded near-elite ratios for the second straight season, but for they again come with a couple of red flags. Wacha's ERA estimators pegged his actual ERA around over a run too low. In addition, a .266 BABIP artificially deflated his WHIP. Since he did almost the same thing in 2022, it may be perceived this is a skill Wacha owns, but the better explanation is he was blessed by Lady Luck two consecutive years. To his credit, Wacha doesn't beat himself with walks, and he keeps the ball in the yards, but his strikeout rate is pedestrian and his Stuff+ metrics are all below average for all his pitches except his changeup which checks in as neutral. Durability is also a concern as Wacha hasn't logged more than 24 starts since 2017. Despite stellar ratios the previous two seasons, Wacha is best considered in the streaming class, best suited to be deployed in pitching venues, and against lesser lineups.

Wacha joined Boston on a one-year, $7 million deal for 2022, and he delivered a 2.70 ERA before he surrendered 11 runs in his final two starts of the campaign. He was limited to 23 starts (127 innings) due to a shoulder injury but still compiled an 11-2 record, and it was a major bounce-back effort after he posted a 5.11 ERA across the previous three seasons. He cut his HR/FB rate nearly six percentage points to 12.4 percent from that three-year stretch, and he also reduced his hard-hit rate (35.4 percent) more than four percentage points. However, Wacha also had a 4.56 xERA in 2022, so there's reason to be worried about some regression. He'll turn 32 years old in July and should be able to secure a rotation spot somewhere in free agency, but his fantasy potential could vary significantly depending on where he lands. Wacha's season-to-season inconsistency through his career also provides pause on whether to expect a repeat performance in 2023.

Wacha was much the same pitcher in 2021 that he was the year previous. An inflated 5.05 ERA belied more advanced metrics like xFIP (3.91) and SIERA (4.00); however, there is another story to tell. Opponents barreled his offerings at a greater rate and increased exit velocity against the right-hander. Enter the Red Sox, the fourth team in the last four years that will attempt to reverse a worrisome trend. The pitcher himself vowed to make changes, ditching a cutter that had been his third pitch, in addition to a four-seamer and changeup, in favor of throwing his curveball more often. The results were promising over his final eight appearances in 2021, and Wacha won the fourth-starter job for Boston, which is expected to have an offense to support the 30-year-old Wacha.

Poor ratios are usually a combination of bad luck and bad pitching. Wacha's actual 6.62 ERA dwarfed his 4.30 xFIP and 3.99 SIERA, but it wasn't all misfortune. In a vacuum, a 23.7 K% and 4.5 BB% should lead to better outcomes. However, Wacha lacks the 10-mph delta between his fastball and change to keep hitters off balance. His repertoire consists of three pitches: a 94-mph fastball, an 89-mph cutter and an 87-mph changeup. Hitters can sit on a pitch, and if they guess right, hammer it as evidenced by a .366 BABIP and 20.5% HR/FB. Wacha signed with the Rays and if there's any organization able to put Wacha in a position to succeed, it's Tampa Bay. There's a chance it's as an opener, quelling chances to earn wins, but it could be as a primary pitcher, increasing the odds. It's purely a speculative bet, but one worth considering at the nominal cost.

Wacha's 2019 campaign wasn't what he wanted heading into free agency, and he had to settle for a one-year deal with the Mets. He again battled injuries and bounced between the rotation and bullpen. In April, Wacha missed a couple of starts with left knee tendinitis before ending the season dealing with shoulder soreness. He was able to throw bullpens in October so he should be healthy heading into the spring. How long he stays that way is the concern, along with eroding peripherals. Wacha's K-BB% dropped to a career-worst 8.7%. He surrendered 26 homers in just 126.2 innings for a 1.85 HR/9, one of the worst marks in the league, despite Busch Stadium suppressing home runs. Be it as a starter, primary pitcher or reliever, Wacha is an injury-prone, fantasy liability. He's shown no signs of skills growth, sporting a weak SwStr%, failing to eclipse 10% since 2014. Let someone else hope, "This is the year."

There was a stretch in 2018 where it seemed like Wacha had found a time machine, as he was dealing as he did as a rookie in 2014. Over that 10-game stretch, Wacha went 6-0 with a 1.74 ERA and struck out 23% of the batters he faced. The fact he pitched in just 15 games and had an overall 3.20 ERA tells you two things: he ended up hurt (oblique), and he pitched poorly in the bookends around that 10-game stretch before going down. Wacha’s FIP was a full run higher than his actual ERA because he got away with a lot of walks thanks to a surprisingly low batting average on balls in play. Wacha’s 10% K-BB rate ranked 111th out of the 144 starting pitchers who worked at least 80 innings in 2018. For all his talents, he has but twice made 30 starts in a season. The skills are there, but the consistency and health are not. He is a filler or a flier more than part of a foundation.

While Wacha has not developed into an ace as some expected, the right-hander has performed at an above-average level when on the field over the past four seasons, and he may not be done improving. He boosted his strikeout rate from 18.8 percent to 22.5 percent last season, thanks in part to an uptick in first-pitch strike rate to a career-high 65.8 percent (from 59.1 percent), and he maintained a walk rate right around his career average of 7.6 percent. Wacha trimmed his HR/9 slightly (to 0.92), which was no small feat in 2017, but manager Mike Matheny was quick to give Wacha the hook when he didn't have it; he had eight starts of 4.1 innings or fewer and that led to a modest innings total over 30 starts. That's probably a good thing for a player with Wacha's injury history, and that kind of limited workload is not a big deterrent in fantasy in this day and age with so few players throwing 200 innings.

Things went from bad to worse for Wacha when an inflamed shoulder sent him to the DL for over a month from August to September. There had been high hopes that he'd be ready to take the next step in establishing himself as a solid major-league starter, but a 4.62 ERA and 1.44 WHIP built over 24 starts did just the opposite. He also managed to average just 5.5 innings per start while his strikeout rate fell for the third straight year. Wacha's array of struggles have sparked conversations about transitioning him to a relief role and dropping him from the rotation altogether, and based off last season's performance, St. Louis has every right to do so. Opponents owned a .289 batting average and .800 OPS when facing Wacha, both of which are career-highs for the 25-year-old righty. He'll likely stretch out during spring training in case injuries impact the Cards' projected starting five, but Wacha's 2017 may feature a transition to a super-relief role.

If one were to look at Wacha’s ERA by halves, it looks like he started strong and then faded with a 2.93/4.01 split, but that doesn’t really tell the story. First off, he had a 2.69 ERA through August before a really rough September (7.88). His first six starts yielded a 2.09 ERA, but just a 4.4 K/9 which left many skeptical. He then ran off an ace-like 19-start stretch of 2.88 ERA, 1.15 WHIP, and 8.7 K/9 in 119 frames before September. That’s where the wheels come off with seven home runs allowed and a 1.1 K:BB ratio in 25 innings. It looks a lot like normal fatigue of a young pitcher grinding through his first full season as the velocity dropped and homers spiked. Now just 24, Wacha will be eyeing his first 200-inning season as the reins should be off entirely. We’ve seen the premium strikeout rate in spurts every year. If he can hold it over a full season, he will be a budding ace, but even if he stays in that mid-7.0s range, he’s still a top-30 arm.

One of the most popular picks in 2014 fantasy drafts, Wacha was limited to just 107 innings in 2014 after dealing with a stress reaction in his right shoulder for much of the summer. Wacha was not impressive in his four September starts after returning form his injury, but prior to hitting the disabled list he looked even better than he did in 2013, posting a 2.79 ERA and 1.12 WHIP while striking out 83 batters in 90.1 innings. Still just 23 years old and with a clean bill of health, Wacha should be in line for another excellent season in 2015, and will likely be available later than he was in 2014 drafts due to injury concerns and recency bias. Wacha will likely slot in as the second or third starter for an improved Cardinals team in 2015.

Wacha didn't receive a full-time shot in the rotation until September and he quickly locked up a spot in the rotation for 2014 by being nearly unhittable while leading the Cardinals into the playoffs and to the World Series. Wacha made things look very easy at times, nearly throwing a no-hitter, and holding opposing hitters to a .198 batting average against him during his five September starts while striking out 28 across 31.1 innings. The 22-year-old will start 2014 near the top of the Cardinals' rotation, likely as the team's No. 2 or No. 3 starter. His ceiling won't be much higher, but his floor is extremely high for a pitcher his age and he should be a very good starting pitcher for years to come.

Things moved fast for Wacha last year. After going in the first round in June, he was with Double-A Springfield by August. The 21-year-old right-hander only pitched 21 innings in the minors last year, but nobody could hit him, as he posted video-game stats of 0.86 ERA, 0.57 WHIP, and an out-of-this-world 40:4 K:BB. He's on the fast track to St. Louis and could be pitching in their bullpen sometime this season. Don't forget him on draft day.

More Fantasy News

Serves up three long balls in loss

PKansas City Royals

July 4, 2026

Wacha (5-6) took the loss against Philadelphia on Saturday, allowing four runs on eight hits and one walk while striking out seven batters over six innings.