Lucas Giolito

Lucas Giolito

30-Year-Old PitcherSP
Boston Red Sox
15-Day IL
Injury Hamstring
Est. Return 4/16/2025
2025 Fantasy Outlook
Giolito's first season with Boston ended before it began when he suffered an elbow injury in spring training that required surgery. Doctors opted for an internal bracing procedure, which gave Giolito a chance for a normal offseason. He began throwing in August and was in Fort Myers on a throwing program during the offseason. There could be restrictions early on, but Giolito is expected to be at spring training with other pitchers. He received Cy Young votes every season from 2019 to 2021, but his career arc took a hit in 2023 when he gave up 41 home runs with a 41.9 percent hard-hit rate. He said the troubles were due to falling behind batters and missing location in the zone. Thought of as a front-end starter after signing with Boston, it's a good bet that the organization isn't counting on a top-of-the-rotation starter in 2025, but the 30-year-old should have a spot at the back end. Read Past Outlooks
RANKS
Rest of Season From Preseason
#373
ADP
$Signed a one-year, $18 million contract with the Red Sox in December of 2023. Contract includes $19 million player option ($1 million buyout) for 2025. Contract includes $14 million team option for 2026 with less than 140 innings pitched in 2025 or $19 million mutual option ($1.5 million buyout) with 140 innings pitched in 2025. Contract includes $250,000 in incentives each season for each 150, 160, 170 and 180 innings pitched. Exercised his player option for 2025 in October of 2024.
Close to rehab assignment
PBoston Red Sox
Hamstring
March 29, 2025
Red Sox manager Alex Cora said Saturday that Giolito (hamstring) threw a bullpen session Friday and could begin his rehab assignment with Triple-A Worcester in the coming week, Mac Cerullo of the Boston Herald reports.
ANALYSIS
Giolito opened the season on the 15-day injured list due to a left hamstring strain that he sustained in mid-March. He wasn't shut down from throwing, and it appears he's progressed enough in his program to be closing in on a rehab assignment. There's optimism that the 30-year-old right-hander will be able to return to the Red Sox's rotation in mid-April.
Read More News
Pitching Stats
Loading Pitching Stats...
2025
2024
2023
2022
2021
2020
2019
2018
2017
2025 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2024 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2023 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2022 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2021 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2020 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2019 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2018 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2017 MLB Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
Minor League Game Log
calculator icon
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Left/Right Pitching Splits
Since 2023
 
 
-9%
BAA vs LHP
2025
No Stats
2024
No Stats
2023
 
 
-9%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .226 323 86 38 63 12 2 17
Since 2023vs Right .249 469 118 35 106 22 5 24
2025vs Left 0 0 0 0 0 0 0 0
2025vs Right 0 0 0 0 0 0 0 0
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
2023vs Left .226 323 86 38 63 12 2 17
2023vs Right .249 469 118 35 106 22 5 24
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-41%
ERA at Home
2025
No Stats
2024
No Stats
2023
 
 
-41%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 3.58 1.03 88.0 5 4 0 10.0 2.9 1.5
Since 2023Away 6.07 1.57 96.1 3 11 0 9.9 4.2 2.4
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0 0 0 0 0 0 0 0 0
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
2023Home 3.58 1.03 88.0 5 4 0 10.0 2.9 1.5
2023Away 6.07 1.57 96.1 3 11 0 9.9 4.2 2.4
More Splits View More Split Stats
Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
Recent RotoWire Articles Featuring Lucas Giolito See More
Spring Training Job Battles: American League Update
10 days ago
Several job battles have been settled around the American League, including the Royals' fifth starter job, which appears to have been won by Kris Bubic.
Mound Musings: A Look at Pitching in the AL East
10 days ago
Brad Johnson completes his pitching staff wrap up with the New York Yankees, who could be one of the best staffs this season with the addition of Max Fried.
AL FAAB Factor: Waiver Pickups of the Week
14 days ago
The first look of the season at the free-agent pool in the American League features a number of prospects in line to win Opening Day jobs, including young Texas Rangers pitcher Kumar Rocker.
The Z Files: Normalizing the ATC Pitching Projections
19 days ago
Todd Zola tries to remove volume from the equation when determining the value of pitchers, and finds that the market may have over-corrected on Logan Webb.
Underdog Fantasy: Rankings and Strategy for The Bullpen Contest
93 days ago
Todd Zola takes a look at some strategic wrinkles in Underdog's best ball The Bullpen contest and explains why top infielders like the Phillies' Trea Turner might drop relative to their ADP.
Past Fantasy Outlooks
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
In 2022, Giolito registered a 4.90 ERA but a 3.66 xFIP and 3.79 SIERA portended a rebound last season. Things did not turn out as hoped for as Giolito recorded a 4.88 ERA pitching for three different teams. This time, the bloated ERA was mostly supported by its estimators as the righty's control and command suffered all season. Fanning 204 in 184.1 innings was solid, but a 9.2 percent walk rate and 41 homers surrendered were major reasons the White Sox and Angels gave up on Giolito before the pitching desperate Guardians picked him up to absorb innings down the stretch. Giolito's velocity and pitch mix was in sync with recent seasons, and after signing a two-year deal (with an opt-out after the first year) with Boston, there's hope that new pitching coach Andrew Bailey can help Giolito maximize a sweeper and return to the form he showed in the first half last year with Chicago (3.45 ERA). Giolito misses bats and hasn't missed more than a start or two every season since 2018, although he'll now be pitching in his most hitter-friendly home park to date.
The right-hander established himself as a reliable front-end starter with a 3.47 ERA from 2019 to 2021, but he cratered last season with an ERA that approached 5.00. Giolito lost a tick on his fastball and saw his strikeout rate drop over two percentage points to 25.2 percent, though his HR/9 improved slightly to 1.3. The White Sox's poor defense certainly did him no favors, which is reflected in his 3.66 xFIP. Still, the poor results can't be entirely blamed on the defense, as he also allowed a 39 percent hard-hit rate, which represents a full-season career high. Giolito will turn 29 years old in July and is entering his final season of arbitration eligibility, and he's a prime rebound candidate with every incentive to deliver in a contract year.
Giolito caught some helium last draft season, and unfortunately, the end result was a little deflating for those that paid top dollar to acquire his services. It was far from a bad season, but Giolito took nine losses, served up 27 homers in 178.2 innings and lost nearly seven percentage points off his strikeout rate (27.9 K%). He spent time on the injured list late in the season with a hamstring injury and finished with more walks (five) than strikeouts (four) in his one postseason appearance. His swinging-strike rate remained elite at 15.3% (fifth in MLB), so his strikeout rate seems likely to tick back up in 2022. Giolito will continue to give up the occasional rocket when he leaves a changeup hanging or a fastball center-cut, but he's been one of the top arms in the American League since he reverted back to his old mechanics after the 2018 season. With his supporting cast, and in that division, Giolito should still be considered a fantasy ace.
Giolito was the worst starting pitcher in baseball in 2018 and some projection systems continue to ding him for that season. Track record matters and we can't pretend that season never happened, but Giolito is a unique case in that he is a fundamentally different pitcher than he was then. After the 2018 campaign, Giolito completely overhauled his arm action and delivery, ditched his sinker in favor of more four-seamers and later changed the grip on his slider. The change back to something resembling his high school mechanics paid immediate dividends and fueled his confidence, culminating in Giolito throwing one of the two no-hitters in the majors in 2020. He threw his changeup more frequently than ever in 2020 en route to a top-five strikeout rate among qualified starters (33.7%). James McCann and his framing are gone, but that's not reason enough to think Giolito won't finish among the elite.
Giolito posted the highest ERA among qualified starters in 2018, then reinvented himself, spending the offseason working on a shorter delivery, adding a couple more ticks to his fastball along with more spin to his curve and slider. He also reworked his arsenal, bagging his sinker, the pitch he threw second-most often in 2018, cutting back on his curve while using his fastball and change more. The result was a swinging-strike rate of 15%, compared to 8.3% the previous season. Giolito's control also improved, helping post a 24.3 K-BB%, sixth best among qualified starters. After five starts, Giolito's 5.32 ERA and 1.44 WHIP weren't encouraging, then his offseason work manifested, and he went 3.12/1.01 the rest of the way. Giolito finished strong, boding well for owning his new skills. Don't be afraid to invest, especially since he stands to gain with expert framer Yasmani Grandal in town.
It is easy to forget that Giolito was once the 16th overall pick of the 2012 draft, and that was only because he was injured in high school and everyone knew he needed Tommy John surgery. He went on to be considered the top pitching prospect in baseball from 2015-16, but Giolito's pitches have really backed up in recent years. He also has an inconsistent grasp of where those pitches are going (to put it nicely). His 6.13 ERA was by far the worst in the majors for all qualified starters and his 11.6% walk rate also brought up the rear. Fifteen of his 32 starts were of the quality variety, but his bad outings were extreme as he gave up five or more earned runs in 10 outings. Only Mike Leake had a lower strikeout percentage among qualified pitchers. It is important to be aware of a player's pedigree, and while Giolito has it in spades, his stuff and command are simply not befitting of a player we should expect significant improvement from.
The former top prospect posted sparkling numbers in seven starts for the White Sox, bouncing back from a miserable debut with the Nationals, but was it real or an illusion? By most measures, it was the latter; Giolito did miss more bats, but still had a modest 19 percent strikeout rate, and home runs were once again a problem (eight allowed in 45.1 innings). The right-hander showed improvement with his control (2.4 BB/9), but the ERA estimators suggest Giolito was closer to a 4.50 ERA pitcher, with luck playing a significant role in his surface stats (92 percent strand rate, .189 BABIP). Giolito saw another dip in fastball velocity -- his average settled at just over 92 mph -- and his larger body of work at Triple-A left a lot to be desired. His 10.1 percent swinging-strike rate and 62 percent first-pitch strike rate hint at room for strikeout growth, but the team context works against him, and there will likely be more bumps in the road.
Giolito began the year in Double-A and ended it in the majors, but it wasn't exactly a completely successful season for the phenom. He put up strong, but not truly dominant, numbers in the high minors but struggled with his command and control with Washington, resulting in walk and home run rates out of character for Giolito compared to his minor league work. End-of-season fatigue may have been a factor, as his fastball was averaging 93.4 mph in the majors instead of popping the high 90s, but his workload only increased marginally from 2015, so whispers about his health inevitably followed (he's had Tommy John once already). At his best, the right-hander still features that explosive fastball, plus a hammer curve and changeup that could soon surpass the curve as an out pitch, and an offseason of rest might be all he needs to regain his top-shelf stuff and seize hold of a spot in the White Sox's rotation. It's also possible that despite his scouting reports, he takes a while to adjust to the majors -- his numbers last year bear some similarities to Kevin Gausman's the season he broke into the majors as a 22-year-old.
This could be the year when Giolito goes from highly-touted prospect to mainstream ace. Three years removed from Tommy John surgery, the Nationals will set him loose on big league hitters when a need in the rotation arises. He cruised through High-A and Double-A in his age 20/21 season, but the numbers do not do him justice. He had a 1.96 FIP in 69.2 innings at High-A and a 3.18 FIP in 47.1 innings at Double-A. His combination of a plus-plus fastball and a borderline 80-grade curveball is something few pitchers on the planet can boast. He also has the potential for a plus changeup in two or three years, with above average command to boot. In short, this is a future ace. His body is built to log innings and his arsenal is built to embarrass big league hitters, the latter of which should begin sometime this summer.
Now two years removed from his Tommy John surgery, Giolito looked every inch the future ace as he tore through the South Atlantic League, posting outstanding 10.1 K/9 and 3.9 K/BB ratios over a restricted workload of 98 innings. The tall, young right-hander already possesses a high-90s fastball and power curve that will overmatch just about anybody he faces in A-ball, so the Nationals are focused on building up his stamina and having him develop his changeup into a quality offering, something which could be the difference between Giolito being merely good in the majors or being one of the best in the game. The club has no reason to rush him given their loaded major league rotation, so Giolito could easily spend two more seasons or more in the minors before getting the call, but at the moment, all signs point to dynasty owners being amply rewarded down the road for their patience.
The Nationals' 2012 first-round pick made an impressive return from Tommy John surgery, albeit in very limited work, and struck out 39 batters in 36.2 innings between rookie ball and Low-A while flashing the same high octane fastball, power curve and developing changeup that made him a much-ballyhooed high schooler prior to his surgery. The Nats are notoriously conservative with recovering pitchers so expect Giolito to be on a strict innings cap this season, but even in limited work he's more than capable of emerging as one of the game's elite pitching prospects. A violent delivery and spindly frame, the usual recipe for control and injury issues, might be the only thing keeping him from tearing into the majors as soon as 2015.
The 16th overall pick in the draft went under the knife for the least surprising Tommy John surgery ever in August, and the Nationals do not expect to get anything for their $3 million signing bonus until 2014. Giolito could be worth the wait though. Were it not for his elbow trouble he very well might have gone first overall, as high schoolers with prototypical power pitcher builds and fastballs that light up the third digit on the radar gun tend to get scouts drooling. It will be a long road back for Giolito, but if any team can get the most out of him it would be the Nats (see: Strasburg, Stephen and Zimmermann, Jordan).
More Fantasy News
Goes on 15-day IL
PBoston Red Sox
Hamstring
March 27, 2025
The Red Sox placed Giolito (hamstring) on the 15-day injured list Thursday, Mac Cerullo of the Boston Herald reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Will open season on injured list
PBoston Red Sox
Hamstring
March 13, 2025
Red Sox manager Alex Cora said Thursday that Giolito (hamstring) will open the season on the 15-day injured list, Julian McWilliams of The Boston Globe reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Tending to low-grade strain
PBoston Red Sox
Hamstring
March 13, 2025
Giolito was diagnosed Tuesday with a low-grade left hamstring strain, Jen McCaffrey of The Athletic reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
MRI on tap
PBoston Red Sox
Hamstring
March 11, 2025
Giolito (hamstring) is scheduled to undergo an MRI on Wednesday, Ian Browne of MLB.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Hamstring injury 'very minor'
PBoston Red Sox
Hamstring
March 11, 2025
Giolito believes the left hamstring injury that forced him from Tuesday's outing against the Phillies to be "very minor," Mac Cerullo of the Boston Herald reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Latest Fantasy Rumors
Mets have strong interest
PFree Agent
December 27, 2023
The Mets are "showing strong interest" in Giolito, Mike Puma of the New York Post reports.
ANALYSIS
The Mets fell short in their bid for Yoshinobu Yamamoto, but they're still in the market for rotation reinforcements. Giolito has some of the best upside of any free-agent starter still on the market and, at 29, is also one of the youngest. The right-hander collected a disappointing 4.88 ERA over 184.1 innings in 2023 but also struck out 200-plus batters for the third time in his career.
See All MLB Rumors