2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.33
K
4
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Schwellenbach was one of the biggest surprises of the 2024 season, as he posted a 3.35 ERA, 1.04 WHIP and 127:23 K:BB across 123.2 innings spanning 21 starts for Atlanta after getting the call in late May. He was especially stingy down the stretch, going 5-2 with a 2.47 ERA, 0.96 WHIP and six strikeouts for every one walk in his final 73 innings. While he had some prospect pedigree as a second-round pick in 2021, this level of success was impossible to foresee for a player that had not pitched above the High-A level coming into the season. After missing all of 2022 following Tommy John surgery, Schwellenbach made his professional debut in 2023, pitching a total of 65 innings that year. In another day and age, the jump from 65 innings to 168.2 total frames last season would scare some drafters off, but conventional wisdom regarding pitching injuries has been challenged in recent years. Most will be eager to draft an arm of this caliber, so long as the pitcher is ostensibly healthy in the moment. A jump in strikeouts is possible with his six-pitch mix and 96th percentile chase rate. Read Past Outlooks
No-decision in quality start
Schwellenbach came away with a no-decision in Saturday's 1-0 loss to the Padres. He allowed one hit and one walk while striking out four across six scoreless innings.
ANALYSIS
It was an outstanding 2025 debut for Schwellenbach, who constantly put batters behind with 13 first-pitch strikes, and he retired 13 of the final 14 batters he faced. The right-hander's efforts weren't enough to get the win, as Atlanta failed to generate any runs and went 0-for-6 with runners in scoring position. The 24-year-old right-hander had a strong spring training certainly carried that momentum into his first start of the regular season Saturday. Schwellenbach is slated to pitch against the Marlins at home next week.
It was an outstanding 2025 debut for Schwellenbach, who constantly put batters behind with 13 first-pitch strikes, and he retired 13 of the final 14 batters he faced. The right-hander's efforts weren't enough to get the win, as Atlanta failed to generate any runs and went 0-for-6 with runners in scoring position. The 24-year-old right-hander had a strong spring training certainly carried that momentum into his first start of the regular season Saturday. Schwellenbach is slated to pitch against the Marlins at home next week.
Pitching Stats
Loading Pitching Stats...
2025
2024
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Pitching Appearances Breakdown
Average Pitch Count
90
Last 10 Games
90
Last 5 Games
90
How many pitches does Spencer Schwellenbach 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 Spencer Schwellenbach 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
-22%
BAA vs RHP
2025
-100%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .247 | 58 | 17 | 60 | 7 | |||
| Since 2023vs Right | .193 | 73 | 7 | 47 | 7 | |||
| 2025vs Left | .100 | 3 | 1 | 1 | 0 | |||
| 2025vs Right | .000 | 1 | 0 | 0 | 0 | |||
| 2024vs Left | .253 | 55 | 16 | 59 | 7 | |||
| 2024vs Right | .200 | 72 | 7 | 47 | 7 | |||
| 2023vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2023vs Right | 0 | 0 | 0 | 0 | 0 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-11%
ERA on Road
2025
No Stats
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 3.38 | 0.98 | 66.2 | 9.5 | 1.1 | ||||
| Since 2023Away | 3.00 | 1.05 | 63.0 | 8.7 | 2.3 | ||||
| 2025Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2025Away | 0.00 | 0.33 | 6.0 | 6.0 | 1.5 | ||||
| 2024Home | 3.38 | 0.98 | 66.2 | 9.5 | 1.1 | ||||
| 2024Away | 3.32 | 1.12 | 57.0 | 9.0 | 2.4 | ||||
| 2023Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2023Away | 0 | 0 | 0 | 0 | 0 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Spencer Schwellenbach 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
4.00K/9
6.0BB/9
1.5HR/9
0.0Fastball
96.4 mphERA
0.00WHIP
0.33BABIP
.072GB/FB
4.00Left On Base
100.0%Exit Velocity
76.5 mphBarrels/BBE
0.0%Spin Rate
2134 rpmBalls Hit 95+ MPH
13.3%Swinging Strike
12.2%Prospect Rankings History
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 Spencer Schwellenbach See More
Todd Zola presents the weekly pitcher rankings for the first full week of the regular season, with a few big names leading the way.
RotoWire's baseball staff has come together to get their MLB picks out for the 2025 season, including predictions for MVP, Cy Young and Rookie of the Year.
Bo Bichette may have had a down season last year, but that could mean now is the time to go get him for your Sorare squad.
With supposed paragon of durability George Kirby opening the year on the injured list, it's time to ask whether or not we really have any idea about which pitchers are injury-prone.
Tarik Skubal's Cy Young defense gets off to a tough start this weekend as he takes on the defending champions in Dodger Stadium. Where does he rank in Todd Zola's first pitcher rankings of the year?
2024 Fantasy Outlook
Atlanta gave Schwellenbach $1 million after drafting him out of Nebraska in the second round in 2021 and he had Tommy John surgery right after the draft. He put up good numbers in 2023 as a 23-year-old in the lower levels, but his stuff ticked up in 2024, with his fastball going from a 93-94 mph pitch to a 95-96 mph offering. He generated groundballs over 55 percent of the time at High-A and Double-A and was surprisingly summoned to the big-league rotation after just two starts at Double-A. There's nothing about Schwellenbach's arsenal or command that would cap his short-term potential, but even as an older prospect, it's quite the jump in competition to the majors after logging only 13 innings above High-A, so there could be some understandable bumps in the road.
More Fantasy News
Blanks Yanks in dominant start
Schwellenbach gave up two hits and a walk over six scoreless innings while striking out 10 in Wednesday's Grapefruit League game against the Yankees.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Fans seven Nats on Friday
Schwellenbach gave up two runs on four hits over 4.2 innings in Friday's Grapefruit League game against the Nationals. He struck out seven without walking a batter.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Tagged for first runs of spring
Schwellenbach gave up three runs on six hits and a walk over three innings in Saturday's Grapefruit League game against the Pirates. He struck out four.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Sharp in spring debut
Schwellenbach gave up a hit and struck out two over two scoreless innings in Tuesday's split-squad game against the Pirates.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Excluded from wild-card roster
Schwellenbach is not on Atlanta's roster for the National League Wild Card Series against the Padres.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.