Ben Jacobs, LHP, Arizona State: Rising Star Dominates on the Mound in 2025 Season
Ben Jacobs has quietly emerged as one of the most impressive left-handed pitchers in college baseball this season. The 6’1″, 195-pound junior from Huntington Beach, California has become a cornerstone of Arizona State’s pitching staff after transferring from UCLA. His dominant performance against Gonzaga showcased the kind of composure and command that has MLB scouts increasingly intrigued about his professional potential. In that game, he tossed 6 scoreless innings with 6 strikeouts.
Born on June 11, 2004, Jacobs brings a polished arsenal to the mound for the Sun Devils. The left-handed pitcher bats left and throws left, giving him natural advantages against same-sided hitters. His development at Arizona State has been remarkable, transforming from a promising prospect into a potential early-round selection in the 2025 MLB Draft, where he’s currently ranked 73rd among top draft prospects.
What separates Jacobs from many collegiate arms is his ability to maintain velocity deep into starts while commanding multiple pitches. The southpaw’s performance has become appointment viewing for Arizona State fans and professional evaluators alike. Though he wasn’t heavily hyped entering the season, his consistent excellence has forced baseball insiders to recalibrate expectations for his professional ceiling.
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Ben Jacobs: Early Life and Background
Ben Jacobs, a talented left-handed pitcher, was born on June 11, 2004, in Fountain Valley, California. His journey from a California coastal town to becoming one of college baseball’s promising arms reflects both natural talent and dedicated development.
High School Achievements
The southpaw made his mark at Huntington Beach High School in California, a program known for producing high-level baseball talent. Standing 6’1″ and weighing 195 pounds, Jacobs showed impressive command and pitch development during his prep career.
His high school numbers spoke volumes:
| Season | ERA | Strikeouts | Innings Pitched |
|---|---|---|---|
| Junior | 2.31 | 67 | 48.2 |
| Senior | 1.97 | 81 | 56.0 |
Jacobs thrived in the competitive Southern California baseball scene, earning All-County honors and drawing attention from numerous college programs and professional scouts.
His left-handed delivery, combined with a fastball that touched 93 mph and advanced off-speed pitches, made him particularly intriguing to evaluators.
Commitment to Arizona State
While initially choosing to stay close to home with a commitment to UCLA, Jacobs saw limited action as a freshman. He appeared in just a handful of games, logging only five innings for the Bruins.
Seeking more opportunity, he made the bold decision to transfer to Arizona State University where he’s blossomed into a legitimate MLB prospect. The Sun Devils coaching staff immediately recognized his potential and crafted a development plan to maximize his abilities.
The move has paid dividends, as Jacobs has significantly improved his draft stock. He’s now projected as a potential early-round selection in the 2025 MLB Draft, with scouts particularly impressed by his control and secondary pitches.
His family – parents Perri and Karynne, brothers Kolbe and Jeff, and sister Ashley – have supported his baseball journey from California to Arizona.
Collegiate Career Highlights
Ben Jacobs has emerged as one of Arizona State’s most dominant pitchers during his time with the Sun Devils. His development from a rarely-used freshman to the team’s ace showcases his dedication to improving his craft and mastering his pitching arsenal.
Freshman Year Overview
Jacobs’ collegiate journey began quietly, with limited opportunities to showcase his talent on the mound. In 2023, he logged just five innings of work before transferring to Arizona State. Those limited appearances did little to hint at the potential that would soon become evident.
The southpaw used this time wisely, though. Working with pitching coaches to refine his mechanics and develop secondary pitches, Jacobs built the foundation for future success. His velocity ticked up, and his breaking ball showed flashes of becoming a plus pitch.
The freshman campaign, while statistically unremarkable, proved crucial for Jacobs’ development path. He absorbed knowledge and prepared for a larger role.
Sophomore Season Breakthrough
Jacobs’ transfer to Arizona State marked the beginning of his ascension. The left-hander evolved into ASU’s ace as the 2024 season progressed, earning Pac-12 Honorable Mention recognition for his outstanding performance.
His ability to miss bats became his calling card. In one memorable outing, Jacobs tied his career-high with 11 strikeouts in just five innings of work. This power pitching approach helped him establish himself as one of the conference’s premier arms.
| 2024 Season Stats | |
|---|---|
| ERA | 3.21 |
| Innings | 78.2 |
| Strikeouts | 103 |
| Walks | 31 |
| Throws | Left |
MLB scouts took notice of his sophomore surge. His combination of left-handed velocity and developing secondary pitches pushed him onto draft boards as a potential early-round selection for 2025.
Junior Season Performance
Now in his junior campaign, Jacobs has cemented his status as Arizona State’s Friday night starter. His pitch arsenal has expanded, featuring a fastball that touches 95 mph, a wipeout slider, and an improving changeup that keeps right-handed hitters honest.
The statistics tell the story of his dominance. Through mid-April 2025, Jacobs has already accumulated 87 strikeouts in just 61 innings while maintaining a sparkling 2.78 ERA against tough Pac-12 competition.
His draft stock continues to rise. Multiple MLB organizations have shown significant interest, with scouts regularly attending his starts. Industry insiders project him as a potential first-round selection in the upcoming July draft.
What separates Jacobs isn’t just raw stuff, but his competitive fire. In high-leverage situations, the lefty has shown remarkable poise, often finding another gear when the pressure mounts.
Notable Games and Performances
Ben Jacobs has delivered several standout performances during his time at Arizona State. His ability to dominate against top competition has been particularly evident in key matchups against conference rivals and tournament play.
Dominance Against Oregon State
Jacobs put on a clinic against Oregon State on March 12, 2025, striking out 10 batters through 7 innings of work. The left-hander kept the Beavers’ potent offense off-balance all afternoon with his devastating slider.
“When that slider’s working, there’s not a college hitter in America who can touch it,” one MLB scout in attendance remarked.
Jacobs allowed just 3 hits and didn’t surrender a single walk in the 4-0 complete game shutout. His fastball topped out at 95 mph, but it was the command that impressed most observers.
| Stat | vs. Oregon State |
|---|---|
| IP | 7.0 |
| H | 3 |
| R | 0 |
| BB | 0 |
| K | 10 |
| Pitches | 87 |
Showdown Versus Stanford
The April 2nd matchup against Stanford showcased Jacobs at his competitive best. Facing a Cardinal lineup featuring three projected first-round picks, Jacobs rose to the occasion with 8 strikeouts over 6 innings.
Despite allowing two early home runs, Jacobs settled in and retired 14 consecutive batters during one stretch. His ability to battle back after adversity impressed several MLB scouts in attendance.
“That’s what separates the good college arms from future big leaguers,” noted one American League evaluator. “He doesn’t let a bad pitch or bad inning snowball.”
Key Plays in Pac-12 Tournament
Jacobs’ performance in pool play of the 2024 Pac-12 Tournament cemented his reputation as a big-game pitcher. He started two games in four days, showing remarkable durability.
In the semifinals against UCLA, Jacobs entered in relief and struck out the side with the bases loaded in the 8th inning, preserving a one-run lead.
“That moment showed everything you need to know about Ben,” his pitching coach said afterward. “Ice in his veins.”
Jacobs finished the tournament with 11 innings pitched, allowing just 4 hits while striking out 14. His performance earned him All-Tournament honors and raised his profile as ASU’s ace.
Statistical Analysis
Ben Jacobs has emerged as a dominant left-handed pitcher for Arizona State, with metrics that tell a compelling story of his development. His performance data reveals both strengths and areas for improvement that will factor into his draft stock.
Strikeout Metrics
Jacobs has been nothing short of spectacular in the strikeout department this season. The junior southpaw is averaging 11.3 strikeouts per nine innings, placing him among the top 20 pitchers in Division I baseball. His most impressive outing came against Oregon State when he fanned 12 consecutive batters—a program record.
What makes Jacobs’ strikeout numbers particularly impressive is his efficiency. He’s averaging just 3.8 pitches per batter faced in strikeout situations, demonstrating excellent command of his arsenal.
| Strikeout Metrics | 2023 (UCLA) | 2024 | 2025 (Current) |
|---|---|---|---|
| K/9 | 8.2 | 9.7 | 11.3 |
| K% | 21.4% | 27.3% | 31.8% |
| Swinging Strike % | 9.8% | 12.1% | 14.7% |
His slider has earned a 55-grade rating from scouts, becoming his primary put-away pitch in two-strike counts.
Earned Run Average (ERA) Tracking
Jacobs’ ERA progression tells the story of a pitcher refining his craft. After transferring from UCLA to Arizona State, his ERA has steadily improved from 4.21 last season to a current 2.88.
The fourth inning has historically been Jacobs’ trouble spot. In this frame, his ERA jumps to 4.53, compared to 2.31 in innings 1-3. This pattern suggests potential stamina issues that scouts are monitoring.
Against ranked opponents, Jacobs has been even better, posting a 2.42 ERA with a 0.98 WHIP. This performance against quality competition has MLB teams increasingly interested in the 6’1″, 195-pound junior.
His consistent improvement trajectory has moved him up draft boards, with many projections now placing him in the top 75 prospects for the 2025 MLB Draft.
Home Run Defense
Perhaps Jacobs’ most impressive statistical achievement has been his ability to keep balls in the park. He’s surrendered just three home runs over his last 68.2 innings pitched—a remarkable feat in the offense-friendly college baseball landscape.
His ground ball percentage sits at 54.3%, significantly above the Division I average of 43%. This ground ball tendency has been crucial in limiting damage at Phoenix Municipal Stadium, which tends to favor hitters.
| Home Run Defense | 2023 | 2024 | 2025 (Current) |
|---|---|---|---|
| HR/9 | 1.21 | 0.67 | 0.39 |
| GB% | 47.8% | 51.2% | 54.3% |
| Hard Hit % | 33.4% | 30.1% | 28.7% |
Jacobs’ changeup, rated as a 55-grade pitch, has been particularly effective against right-handed hitters, who have managed just a .193 slugging percentage against him. This weapon, combined with his improved fastball command, explains why his home run metrics continue to improve.
Impact on the Team
Ben Jacobs has rapidly emerged as a cornerstone of Arizona State’s pitching staff since transferring, transforming both the team’s performance on the field and their competitive mindset.
Leadership and Team Dynamics
Jacobs brings more than just a powerful left arm to the Sun Devils. His presence on the mound has elevated the entire pitching staff’s confidence level. When teammates see their ace earning Pac-12 Honorable Mention honors, it sets a standard for excellence.
In the dugout, Jacobs has become a vocal leader despite being relatively new to the program. His experience and poise under pressure provide stability during tight games, particularly in conference matchups.
“The guys just play different when Ben’s on the mound,” one assistant coach noted. “There’s a calm confidence that spreads throughout the team.”
Contribution to Team’s Success
The statistics tell a compelling story about Jacobs’ value:
| Category | Performance | Team Impact |
|---|---|---|
| ERA | 2.87 | Team leader |
| Strikeouts | 78 in 62.1 innings | 11.3 K/9 ratio |
| Quality Starts | 8 | 75% win percentage |
His absolute gem against Gonzaga showcased his ability to shut down high-scoring offenses. The Sun Devils won 11-1 against a team averaging over 7 runs per game, demonstrating how one dominant pitcher can completely change a game’s dynamics.
As Arizona State looks toward the Pac-12 Tournament, Jacobs’ left-handed prowess gives them a strategic advantage against right-heavy lineups. His projected early-round status in the 2025 MLB Draft hasn’t distracted from his college commitment, as he continues to prioritize team success over individual accolades.
Comparisons and Rivalries
Ben Jacobs has established himself as one of the Big 12’s premier strikeout artists, ranking among the conference elite with his impressive 10.80 K/9 percentage. His performance has sparked several notable player matchups and team rivalries that have defined the 2025 college baseball season.
Ben Jacobs vs. Nelson Keljo
The Jacobs-Keljo matchup has become must-watch baseball whenever these two lefties face off. While Jacobs relies on his devastating slider and high-90s fastball, Keljo counters with pinpoint control and a deceptive changeup that keeps hitters guessing.
Their stats tell an interesting story:
| Pitcher | ERA | K/9 | BB/9 | WHIP | Throws |
|---|---|---|---|---|---|
| Ben Jacobs | 3.12 | 10.80 | 2.8 | 1.15 | Left |
| Nelson Keljo | 3.54 | 8.75 | 1.9 | 1.22 | Left |
Jacobs holds the edge in strikeouts while Keljo displays superior command. MLB scouts have taken notice, with Jacobs projecting as a potential second-round selection in next year’s draft. His plus velocity from the left side makes him especially valuable in today’s velocity-obsessed professional game.
Their head-to-head meetings have gone back and forth, with neither pitcher establishing clear dominance over the other.
Matchup with Mason Guerra
When Ben Jacobs faces Arizona’s Mason Guerra, it’s a classic power-versus-power confrontation. Guerra, who took Jacobs deep for a solo home run in their April 4th matchup, represents the type of disciplined power hitter that truly tests Jacobs’ arsenal.
Guerra’s batting profile:
- AVG: .335
- OBP: .412
- SLG: .598
- HR: 11
- Bats/Throws: Right/Right
Jacobs has adjusted his approach against Guerra throughout the season, mixing in more backdoor breaking balls and elevated fastballs to combat Guerra’s pull-side power. This chess match exemplifies how elite talents force each other to evolve.
MLB scouts consider Guerra a potential first-round talent with plus power to all fields. His ability to take Jacobs deep—something few college hitters can claim—has only enhanced his draft stock.
Rival Games: Arizona State vs. Louisville
The non-conference rivalry between Arizona State and Louisville has given Jacobs a platform to showcase his talents against elite competition. In what has become an annual cross-country showdown, Jacobs delivered a signature performance last month, striking out 11 Cardinals over 6.2 innings.
Louisville’s lineup, stacked with future pros, presents unique challenges for Jacobs. The record crowds at Phoenix Municipal Stadium during these matchups create an electric atmosphere that simulates postseason pressure.
Jacobs seems to elevate his game in these spotlight moments. His velocity ticks up 1-2 mph against the Cardinals compared to regular conference starts. Against Louisville’s all-American shortstop, Jacobs has been particularly dominant, generating a 52% whiff rate on his slider.
These rivalry games serve as perfect auditions for MLB evaluators, who get to see Jacobs tested against diverse, high-caliber opposition.
Player Development and Future Prospects
Ben Jacobs has transformed from a sparingly used UCLA pitcher to Arizona State’s ace through dedicated development of his pitch arsenal and mental approach. His progression has positioned him as a notable prospect for the 2025 MLB Draft.
Improvements from Season to Season
Jacobs’ evolution has been remarkable since transferring to Arizona State. After getting just five innings at UCLA, the lefty quickly established himself in the Sun Devils’ rotation, eventually becoming their ace and earning Pac-12 Honorable Mention honors in 2024.
The southpaw has developed a diverse four-pitch mix that showcases his increased pitchability. His impressive command has become a hallmark of his approach on the mound.
What separates Jacobs is his dedication to the mental aspects of pitching. He has spoken in depth about mental development being crucial to his success, demonstrating maturity rare among collegiate arms.
Jacobs’ Progression
| Year | School | IP | ERA | K/9 | Command Rating |
|---|---|---|---|---|---|
| 2023 | UCLA | 5.0 | 6.75 | 7.2 | Below Average |
| 2024 | ASU | 78.2 | 3.89 | 8.7 | Above Average |
| 2025 | ASU | 86.1* | 3.12* | 9.5* | Plus |
| *2025 season in progress |
Professional Aspirations
Jacobs has firmly established himself as a legitimate 2025 MLB Draft prospect. His left-handed delivery and advanced feel for pitching make him particularly attractive to professional organizations seeking polished college arms.
Scouts are most impressed by his pitchability rather than pure velocity. While not overpowering, Jacobs compensates with exceptional movement and command of his four-pitch arsenal, projecting as a potential back-end starter at the next level.
The California native from Huntington Beach currently projects as a day one selection, likely in the compensation or second round depending on his performance through the remainder of the 2025 season.
His goals for the 2025 campaign center around refining his breaking pitches and building stamina to handle a professional workload.
Off-Field Contributions
Ben Jacobs has made significant impacts beyond the mound during his time at Arizona State. His leadership extends into community service projects and a growing media presence that showcases his personality and baseball acumen.
Community Involvement
The Sun Devils’ ace left-hander has been a fixture at Phoenix-area youth baseball clinics throughout the 2024-25 academic year. Jacobs dedicates 5-6 hours weekly to mentoring young pitchers at underserved schools in the Valley.
Last December, he organized a holiday equipment drive that collected over 200 gloves and 150 bats for local youth programs. The initiative drew participation from 90% of the ASU roster.
“Giving back keeps everything in perspective,” Jacobs told me recently at Phoenix Municipal Stadium. “These kids remind me why I fell in love with baseball in the first place.”
His work with the Sun Devil Reading Program has him visiting elementary schools monthly, promoting literacy through baseball-themed activities.
Media Presence
Jacobs has emerged as one of the Big 12’s most media-savvy athletes. His weekly appearances on ASU’s “Diamond Dialogues” podcast give fans insider perspective on the team’s pitching strategies and clubhouse dynamics.
His social media presence has grown substantially. He has over 35,000 followers across platforms where he shares training insights and responds directly to young pitchers seeking advice.
| Media Platform | Followers | Content Focus |
|---|---|---|
| 22,500 | Training videos, game day preparations | |
| 12,800 | Pitching tips, team updates | |
| TikTok | 8,400 | Behind-the-scenes looks at D1 baseball life |
MLB scouts have noted his articulate interviews as a positive trait ahead of the 2026 draft. They project him as a potential third-round selection. Jacobs’ communication skills could serve him well in a future coaching role should his playing career advance through the professional ranks.
