Greg Mamula
Head Coach
- Greg Mamula was named University of Delaware head baseball coach in June of 2022. The 2025 season will be his third as head coach of the Blue Hens.
- The 2024 season was another step in the right direction for the Blue Hens baseball team. UD’s 31-26 overall record and 15-9 record in conference play, which led to a fourth place finish in the CAA standings, all of which are the program best since 2017
- Offensively, the Blue Hens ranked first in runs scored (478), RBI’s (459), second in home runs (105), and walks (337, program record). In the field, the Blue Hens committed the fewest errors with 40, leading to a .980 fielding percentage. Mamula’s squad had six players receive All-CAA accolades
- During his first season at the helm in 2023, Mamula led Delaware to a 30-29 record, its first CAA Tournament appearance since 2018 and best conference record (17-13) since 2018.
- Serving as the Blue Hens hitting coach, the 2023 offense was one of the best in all of college baseball averaging 7.6 runs per game and finishing first or second in the CAA in OPS, slugging %, doubles, triples, walks and homeruns. He coached three All-CAA members.
- A highly regarded collegiate hitting coach, Mamula has coached three current everyday big leaguer hitters (Nolan Schanuel – Angels, Ian Happ – Cubs and Joey Wendle – Marlins), two 1st round draft picks (Nolan Schanuel and Ian Happ), two 2nd rounders (Tyler Frank – Rays and CJ Chatham – Red Sox) and one 3rd rounder (Gabe Rincones – Phillies).
- Prior to being the Blue Hen Skipper, Mamula was the Associate Head Coach at Florida Atlantic University.
- During Mamula's tenure, the Owls made three NCAA Regional appearances and won two Conference USA regular season titles, while featuring an offense annually ranked among the leaders in C-USA.
- Mamula was named 2019 Conference USA Assistant Coach of the Year when the Owls' offense led the league in batting average, hits, RBI, runs and slugging percentage. His 2018 squad ranked 12th in the nation in home runs, while three offensive players were selected in the 2018 MLB Draft.
- Prior to his tenure at FAU, Mamula served as assistant coach at the University of Cincinnati where he coached the offense and infielders, assisted with recruiting and was the third base coach. During his first year as the Bearcats' hitting coach, the team's offensive numbers improved dramatically, while Ian Happ was selected with the ninth overall pick in the 2015 MLB Draft.
- Mamula previously served as head coach at West Chester University for three years, helping the Golden Rams average 41 wins per season. He was named PSAC East Coach of the Year and Atlantic Region Coach of the Year in 2009, as WCU reached the DII College World Series and finished the year ranked seventh in the nation.
- Mamula served five years as assistant coach and recruiting coordinator at Delaware from 2002-06 under Jim Sherman. During his five recruiting classes at UD, Mamula brought in 20 All-Conference performers and two All-Americans, while 13 of his recruits were selected in the MLB Draft. During his final season in Newark, the Blue Hens' offense led Division I with 111 home runs, 143 doubles and a .574 slugging percentage.
- Mamula began his coaching career as an assistant coach at Division II Shippensburg University from 1999-2001.
- Mamula was a four-year starter as an infielder at St. Bonaventure University, where he was an Atlantic 10 All-Academic Team selection during his final two years and served as team captain as a senior.
Chris Bresnahan
Recruiting Coordinator
- Bresnahan will begin his first season at UD in 2025
- Prior to to joining the Blue Hen program, Bresnahan served as the Associate Head Coach at UNC Asheville
- During his time in Asheville, Bresnahan helped recruit and coach 23 All-Big South honorees during his tenure.
- 6 Bulldogs entered the record books during Bresnahan's tenure, which includes Asheville's all-time home run leader Brandon Lankford (52 home runs) and the program's all-time saves leader, Kole Harris (17 saves).
- Bresnahan coached 1 Freshman All-American, 2 finalists for the Brooks Wallace Award (Best SS in the country), and 1 Preseason Big South Player of the Year.
- Prior to Asheville, Bresnahan helped coach the Fordham Rams to their first Atlantic 10 Championship appearance in four seasons and their first tournament win since 2007. Fordham also saw four players earn All-League honors, a number not attained since 1997. Among the honorees was First-Team All-Atlantic 10 outfielder Tim Swatek, who led the conference in batting average (.392), on-base percentage (.491), and walks (32).
- Bresnahan played at Elon University from 2010-2013 where he was a 2x Southern Conference Champion and appeared in 2 NCAA regionals.
Daniel Sweeney
Pitching Coach
- Daniel Sweeney will begin his first season as the Blue Hen pitching coach in 2025
- Sweeney served as the pitching coach at William & Mary for three seasons from 2022 to 2024.
- In 2024, Sweeney led the Tribe pitching staff to a 4.75 ERA (34th in Div. I), 8.75 hits per 9 (42nd in Div. I), 1.46 WHIP (47th in Div. I) and struck out 564 (1st CAA and 20th in Div. I). Right-hander Nate Knowles was named as the CAA Pitcher of the Year and will be drafted in the July 2024 MLB Draft.
- The 2023 season saw the William & Mary team ERA drop to 4.17 (9th best in Div. I & 2nd CAA). The Tribe pitching staff held opponents to a .252 batting average against while striking out 470. Their 8.45 k’s per 9 innings was the third most in program history. In addition, right-hander Cory Wall was drafted in the 8th round by the Atlanta Braves.
- In his first season at William & Mary, he helped to lower the team ERA from 5.88 to 4.34 (38th in Div. I) while also decreasing the team WHIP from 1.65 to 1.43. Freshman pitcher Carter Lovasz was named a Freshman All-American in 2022.
- Prior to William & Mary, Sweeney served as the Volunteer Assistant (2021) and Director of Baseball Operations (2020) at his alma mater East Tennessee State University.
- As a senior starting pitcher at ETSU in 2019, Sweeney had a 6-3 record, 3.23 ERA and struck out 71 in 78 innings. For his career, he posted a 4.30 ERA.
Sky Duff
Assistant Coach/Camp Director
- Duff will begin his first season with UD in 2025.
- Sky, a talented young coach, joins the Blue Hens following a standout career and coaching stint at the University of Pittsburgh.
- Following his playing career, Duff transitioned into coaching, serving as a graduate assistant at Pitt during the 2023-2024 season. In this role, he assisted with the Panthers’ infielders, hitters, and in-game defensive positioning. During the summer of 2024, Duff took on multiple roles with the Y-D Red Sox in the Cape Cod League, where he served as the infield coach, hitting coach, and third-base coach.
- Duff had an illustrious playing career at Pitt, where he excelled as a four-year starting infielder. He holds several records at Pitt, including the all-time career leader in doubles (54) and walks (171). Additionally, Duff ranks second in career at-bats (794), third in games started (203), fifth in runs (163), and eighth in hits (226). His exceptional performance in 2021 earned him a spot on the all-ACC team and the ABCA all-region team, with a .366 batting average and a .986 OPS.