2026 fantasy baseball starting pitcher sleepers to target in late rounds, featuring Emmett Sheehan, Jack Leiter, and more high-upside arms poised to beat their NFBC ADP.
Finding starting pitching value after the early rounds is how you build a dominant fantasy baseball staff, and this group of 2026 sleepers is loaded with strikeout upside and breakout potential. From post-surgery velocity spikes to former elite prospects finally finding command, these arms are positioned to crush theirSheehan elected to have a hybrid TJ surgery in 2024 that was paired with an internal brace.
Based on the pitchers I’ve seen so far, he had the most success after returning to a minor league mound a year later. Between his six low-inning starts in the minors and 15 appearances with the Dodgers, Sheehan went 7-4 with a 3.10 ERA, 0.957 WHIP, and 125 strikeouts over 93.0 innings. He averaged 4.4 innings per start while throwing more than 61 pitches in only four games . Over his final nine appearances with Los Angeles, Sheehan went 4-1 with a 2.42 ERA, 0.876 WHIP, and 63 strikeouts over 48.1 innings. Despite his success, his arsenal was less effective on the road . His average fastball came in at 95.7 mph. Sheehan added a low-volume curveball while upping the usage of his slider at the expense of his changeup and four-seamer . Sheehan spent part of four seasons in the minors, leading to a 15-5 record with a 3.08 ERA, 1.004 WHIP, and 278 strikeouts over 166.1 innings.Sheehan isn’t a lock to pitch every fifth day in 2026. Los Angeles had six viable starting arms, and they’ve stated that Roki Sasaki will be in their rotation this year. Both pitchers have a low ceiling of innings this year for different reasons. The Dodgers should push Sheehan to about 140.0 innings this year. The progression in his arm is enticing, putting him on a path to win 10+ games with a sub-3.00 ERA, a favorable WHIP, and over 150 strikeouts.Texas Rangers starting pitcher Jack Leiter throws a pitch against the Cleveland Guardians during the first inning at Progressive Field. | Ken Blaze-Imagn Images After an electric 22 games at Vanderbilt , the Rangers drafted Leiter second overall in the 2021 MLB June Amateur Draft. He allowed only 53 hits, leading to a difference-maker WHIP . Unfortunately, Leiter battled walks and home runs over his three seasons between AA and AAA, leading to a significant step back in his ERA and WHIP . In 2024, his arsenal started to show signs of growth at AAA . He struck out 11.7 batters per nine in the minors. Pitching injuries in Texas gave Leiter a chance to start last season. He allowed two runs or fewer in 13 of his 29 starts, when pitching at least five innings. His two highlight games came over his final seven starts. Leiter showed the most risk in May and June . Baserunners stole 17 bases in 18 chances against him. Leiter struggled against right-handed batters . His average fastball had plus velocity. Leiter added a sinker last year while also trusting his changeup more. He also featured a four-seamer , slider , and curveball .Leiter was challenging to hit last year while not finding his stride with his strikeout rate and still walking too many batters . His experience bodes well for more improvement in 2026. With 15 fewer walks, I could see a jump to close 11 strikeouts per nine innings and more length in his starts. Trending toward 12+ wins with a sub-3.50 ERA and 180+ strikeouts with 165 innings pitched. The key to his success is better command of his fastball, in and out of the strike zone.The Royals took a flier on Cameron in the seventh round in the 2021 MLB June Amateur Draft after having TJ surgery. His left arm was trending higher over his first 26 games in the minors , but AA batters banged him up in 2023 . Cameron was a much better pitcher at AAA over the past two seasons . Kansas City gave him his first major league opportunity last year in late April. He hit the ground running over his first five starts . Batters roughed him up in two of his next four starts . Cameron went 7-3 over his final 15 starts with a 3.12 ERA, 1.154 WHIP, and 76 strikeouts over 86.2 innings. His average fastball came in below the league average. He threw his changeup , curveball , and cutter about the same percentage of time. Cameron mixed in a four-seamer and slider . All of his arsenal played well against left-handed batters .With 171.0 innings on his resume, Cameron looks poised to make 30 starts for the Royals this year. His minor league career showed a higher strikeout rate, painting a higher ceiling. With an increase in velocity on his fastball, he will be that much better. The next step in Cameron’s development will be locating his fastball better vs. righties, which may require fewer cutters. A drafter could make a case that he is mispriced in a good way in 2026. Possible 12 wins with a sub-3.50 ERA and 175 strikeouts.Chicago White Sox pitcher Shane Smith pitches against the New York Yankees during the first inning at Yankee Stadium. | John Jones-Imagn Images Smith missed his development time with Wake Forest in 2020 due to COVID-19, limiting him to only five relief appearances . The following year, he had TJ surgery. In 2023 and 2024, the Brewers gave him 70 appearances , resulting in a 2.63 ERA, 1.013 WHIP, and 199 strikeouts over 154.0 innings. Smith picked up 13 wins and 11 saves. The White Sox acquired him in the Rule 5 draft before last season. Chicago had to keep in the majors all year, and Smith was up to the task. He allowed two runs or fewer in 16 of his 29 starts, with at least five innings pitched. Smith opened his major league career with a 2.37 ERA, 1.171 WHIP, and 64 strikeouts over 68.1 innings. After a six-game slump , he regained his form over his final 55.1 innings . His average fastball had plenty of life. Smith mixed in a changeup , curveball , sinker , and slider as his secondary pitches. His success was driven by his four-seamer .Smith has the feel of a workhorse arm, who should naturally improve in his second year in the majors. Batters only hit .216 against, even with command issues . I expect him to be significantly better this year, highlighted by a jump in his strikeout rate and a push over 170.0 innings. The White Sox allowed him to throw over 90 pitches only eight times last year. I I view Smith as a deep sleeper target, with the talent to make a run at a 3.00 ERA and over 180 strikeouts. Giddy Up.Tampa Bay Rays pitcher Ian Seymour throws during the fifth inning against the Baltimore Orioles at Oriole Park at Camden Yards. | Daniel Kucin Jr.-Imagn Images The Rays drafted Seymour in the second round of the 2020 MLB June Amateur Draft after flashing in four games in college . His final year at Virginia Tech was cut short by the COVID-19 outbreak. In his first year in the minors, Seymour blew through three levels of the minors , highlighted by four starts at AA and AAA . He gave up two years of development due to TJ surgery in 2022. In 2024, the Rays gave Seymour 27 starts across AA and AAA, resulting in a 9-4 record, a 2.35 ERA, a 0.950 WHIP, and 162 strikeouts in 145.1 innings. He followed up that success with another winning 16 appearances at AAA last season . Tampa Bay called him up for one relief appearance in June , and gave him the ball 11 more times out of their bullpen in July and August . Six of his runs allowed came in one relief outing. Over his final seven games , Seymour went 3-3 with a 3.48 ERA, 1.188 WHIP, and 38 strikeouts over 33.2 innings. His average fastball puts him in the soft-tosser category, but Seymour makes up for this shortfall with an elite changeup while mixing in a cutter and slider . He barely threw his sinker and curveball . Batters struggled to hit his four-seamer .Seymour brings craftiness to the pitching mound that frustrates batters due to his ability to change speeds. He averaged 11.0 strikeouts per nine innings in the minors with reasonable command. Over 28 games at AAA, he went 14-4 with a 2.34 ERA, 1.120 WHIP, and 176 strikeouts over 150.00 innings. He pitched 145.1 innings in 2024 and 143.0 last season, putting Seymour on a path to make 30 starts for Tampa this year. I like the sum of his parts, and I expect him to outperform his ADP. Think double-digit wins with a sub-3.50 ERA and a run at 175 strikeouts. He’ll have some down days, but the good should outweigh the bad by a wide margin. Each of these pitchers carries some workload or command risk, but their skills point to massive profit potential relative to draft cost. If even two of these late-round targets hit their projected innings and strikeout growth, they can anchor a championship-caliber fantasy rotation.With 20+ years of experience in the high-stakes fantasy market, I aim to research and compete at the highest level in baseball and football each season. I've contributed as a writer/analyst for Sports Draft Daily, ScoutPro, Scout Fantasy, Fulltime Fantasy, FFToolbox, and Sports Illustrated Fantasy. I'm honored to be in the National Fantasy Baseball Championship Hall of Fame. My drafting philosophy is risk-averse yet open to betting on potential game-changers. I approach player selection with a neutral perspective, acknowledging that fantasy sports are inherently unpredictable due to injuries, performance dips, and managerial decisions. My work focuses on these main areas: - Season-long fantasy baseball and football - BestBall Baseball and Football Events - Daily Fantasy Sports : DraftKings, FanDuel, and Underdog - Long Shot Player Prop Parlays for NFL I participate in various leagues and contests, including NFBC, NFFC, RTSports, FFPC, DraftKings, Underdog Fantasy, FanDuel, and FFWC, with the goal of leveraging my extensive experience and research for success in each game format. A fantasy follower can expect in-depth profiles of NFL and MLB players, along with season-long and weekly projections for each fantasy football season. In addition, I have many strategy articles to help develop fantasy players' learning curves.
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