2025 Stats
W-L
0-0
ERA
4.50
WHIP
1.17
K
7
SV
0
Rest-of-Season Projections
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

Encouraging results in season debut
Giolito didn't factor into the decision Wednesday against the Blue Jays after allowing three runs on five hits and two walks in six innings. He struck out seven.
ANALYSIS
After missing all of last season due to elbow surgery and the start of 2025 due to a hamstring issue, Giolito registered a quality start in his Red Sox debut Wednesday. The right-hander's fastball touched 96 mph, which is an especially encouraging sign coming off a significant injury. It was equally promising to see Giolito throw 90 pitches, which suggests he's mostly stretched out following a five-start rehab assignment. He'll look to build on this performance in his next outing, currently projected for next week versus a Rangers team that ranked 25th in runs scored (102) ahead of Wednesday's action.
After missing all of last season due to elbow surgery and the start of 2025 due to a hamstring issue, Giolito registered a quality start in his Red Sox debut Wednesday. The right-hander's fastball touched 96 mph, which is an especially encouraging sign coming off a significant injury. It was equally promising to see Giolito throw 90 pitches, which suggests he's mostly stretched out following a five-start rehab assignment. He'll look to build on this performance in his next outing, currently projected for next week versus a Rangers team that ranked 25th in runs scored (102) ahead of Wednesday's action.
Pitching Stats
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2025
2024
2023
2022
2021
2020
2019
2018
2017
Minor League Game Log

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Pitching Appearances Breakdown
Average Pitch Count
90
Last 10 Games
90
Last 5 Games
90
How many pitches does Lucas Giolito 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+
What part of the game does Lucas Giolito generally pitch?
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 2023
-12%
BAA vs LHP
2025
-73%
BAA vs LHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2023vs Left | .221 | 90 | 38 | 64 | 18 | |||
Since 2023vs Right | .251 | 121 | 37 | 110 | 25 | |||
2025vs Left | .091 | 4 | 0 | 1 | 1 | |||
2025vs Right | .333 | 3 | 2 | 4 | 1 | |||
2024vs Left | 0 | 0 | 0 | 0 | 0 | |||
2024vs Right | 0 | 0 | 0 | 0 | 0 | |||
2023vs Left | .226 | 86 | 38 | 63 | 17 | |||
2023vs Right | .249 | 118 | 35 | 106 | 24 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2023
-40%
ERA at Home
2025
-100%
ERA at Home
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2023Home | 3.58 | 1.03 | 88.0 | 10.0 | 2.9 | ||||
Since 2023Away | 5.98 | 1.54 | 102.1 | 9.9 | 4.1 | ||||
2025Home | 0 | 0 | 0 | 0 | 0 | ||||
2025Away | 4.50 | 1.17 | 6.0 | 10.5 | 3.0 | ||||
2024Home | 0 | 0 | 0 | 0 | 0 | ||||
2024Away | 0 | 0 | 0 | 0 | 0 | ||||
2023Home | 3.58 | 1.03 | 88.0 | 10.0 | 2.9 | ||||
2023Away | 6.07 | 1.57 | 96.1 | 9.9 | 4.2 | ||||
More Splits→ | View More Split Stats |
Stat Review
How does Lucas Giolito 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.
* 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
3.50K/9
10.5BB/9
3.0HR/9
3.0Fastball
93.3 mphERA
4.50WHIP
1.17BABIP
.232GB/FB
0.75Left On Base
95.2%Exit Velocity
0.0 mphBarrels/BBE
0.0%Spin Rate
0 rpmBalls Hit 95+ MPH
0.0%Swinging Strike
8.9%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
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.
More Fantasy News

All set for Red Sox debut
The Red Sox activated Giolito (hamstring) from the 15-day injured list Wednesday.
ANALYSIS
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Confirmed for Wednesday debut
Giolito (hamstring) will be activated from the 15-day injured list to start Wednesday's game against the Blue Jays, Christopher Smith of MassLive.com reports.
ANALYSIS
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Makes final rehab start
Giolito (hamstring) allowed three runs on three hits and six walks while striking out four over 4.2 innings for Triple-A Worcester on Friday.
ANALYSIS
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Scheduled for season debut May 1
Red Sox manager Alex Cora said Wednesday that Giolito (hamstring) is tentatively scheduled to return from the 15-day injured list to make his season debut May 1 in Toronto, Jen McCaffrey of The Athletic reports.
ANALYSIS
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Covers five innings in rehab start
Giolito (hamstring) struck out four and allowed three earned runs on six hits and no walks over five innings in his rehab start Sunday with Double-A Portland.
ANALYSIS
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Latest Fantasy Rumors

Mets have strong interest
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.
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.