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Delta Mustangs
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Baseball Official Athletic Site of San Joaquin Delta College 
Coaching Staff

Reed Peters
5151 Pacific Avenue
Stockton, CA 95207-6370
Office: Budd 124
Phone: 209-954-5183
Fax: 209-954-5696

Head Coach, Reed Peters

Head Coach, Reed Peters began at San Joaquin Delta in 2008. With over 20 years as a collegiate coach, he has taken that experience and risen the Mustangs to a top program in the state. In his seven seasons the Mustangs have reached the Final Four three times including a State Championship in 2011 and State Runner up finishes in 2009 and 2014. During his tenure there have been six All Americans, ten players drafted by Major League Baseball teams, 32 Division I transfers, 24 Division II transfers and 24 NAIA transfers.

  • 2014: State Runner Up. #5 National Ranking by Perfect Game. Big 8 Champions
  • 2013: California Elite 8 Finalist: #3 Norcal Ranking
  • 2011: State Champion. #6 National Ranking by Perfect Game
  • 2009: State Runner Up
  • 2008: 1st Playoff Appearance for Delta in 20 years

Before joining Delta College, Coach Peters enjoyed success at all of his previous stops.  In Peters' four seasons at Feather River College he compiled impressive totals which include, two conference championships, four straight top twenty rankings and playoff appearances, three coach of the year honors (2005, 2006, & 2007), and a unprecedented 25-0 Golden Valley Conference record in 2007. 

1999-2003 was spent at the Air Force Academy. The 2002 Mountain West Conference Coach of the Year, Peters, in his first three seasons at Air Force won more conference games than any other Falcon coach in their first three seasons. Peters won 28 league games in three seasons, passing the record of Joe Robison and Eric Campbell, who each won 24 games in his first three seasons. Peters won 73 games overall from 2000-02, the second most by a Falcon baseball coach in the first three seasons. Peters led the Falcons to back-to-back 23-win seasons in 2000 and 2001 and to 27 in 2001.

Peters' coaching career began at his alma mater, UNLV, where he was an assistant coach. In 1994, he left UNLV to take the head coaching job at Colby Community College in Colby, Kansas. In his four seasons at Colby, Peters posted a 123-80 record for a .600 winning percentage. In his first season, he led the Trojans to the Region VI Championship, the first and only championship in the school's 50+ years. His 1996 team was the west sub-region runner-up while his 1997 team was the west region conference runner-up.

A 1984 graduate of Cherry Creek High School in Denver, he was one of only three people in the school's history to earn four varsity letters in baseball. A member of Cherry Creek's first state championship teams in football and baseball, Peters received all-state honors in both sports, and was inducted into the Cherry Creek High School Hall of Fame in 2006. He earned three letters playing centerfield at UNLV from 1985-87, while starting and playing every inning of every game prior to signing professionally after his junior year. Peters earned all-Big West honors in 1986 and 1987 and led the league in home runs with 18 in 1987. Peters was equally impressive in the classroom as he earned GTE/CoSIDA Academic All-American honors in 1986. Peters earned his bachelor's degree in business administration from UNLV in 1992 and his Masters Degree in Sports Administration from the United States Sports Academy in 2005.

Following his collegiate career, Peters was a 12th-round draft choice of the California Angels in June, 1987. He played five years in the Angels' organization: 1987 Salem, Oregon (Short A), 1988 Palm Springs, Calif., (High A), 1989 Midland, Texas (AA) and 1990 and 1991 Edmonton, Alberta (AAA). He then spent two seasons in the San Francisco Giants organization playing for Shreveport, La. (AA) and the Phoenix Firebirds (AAA) in 1992. He spent the entire 1993 season with the Firebirds, followed by a season of winter ball in San Pedro de Marcoris of the Dominican Republic. He finished his professional career hitting over .300 four times. Most of his time was in the outfield, however he played all nine positions during his pro career.

Baseball runs in the family as Peters' twin brother, Rex, is the head assistant baseball coach at UCLA. Rex played in the Los Angeles Dodgers organization from 1989-92, Reed's father, Rex, Sr., was with the Baltimore Orioles organization from 1962-65. His brother-in-law, John Orton, was a major league catcher with the Angels and is currently the roving catching instructor for the Chicago White Sox..

Peters, and his wife, Audrey, have three children: sons, Cade (18), Beau (15) and Drew (11).

Assistant Coach, Denny Peterson  

Denny Peterson began as an assistant coach with the Delta Mustangs in 2005. He is a veteran of nine years of high school and thirteen years of college coaching experience. Coach Peterson's primary responsibilities include coaching the pitchers and recruiting. He has established himself as one of the top pitching coaches in California Community College Baseball. In the last four seasons he has produced 11 Division I transfers and four players drafted.

  • 2014: State Runner Up. Five Division I transfer pitchers and 1 drafted pitcher
  • 2013: Elite 8.
  • 2011: State Champion. Five Division I transfer pitchers and 1 drafted pitcher
  • 2009: State Runner Up. California Pitcher of the Year: Zach DeValle

Peterson came to Delta after spending the previous three seasons at the University of The Pacific. The previous year (1999), Peterson was an assistant coach at Johnson County Community College in Overland Park, Kansas. In addition to coaching the pitchers and catchers, Peterson was also an associate scout for the Tampa Devil Rays organization of Major League Baseball.

Before entering college coaching, Peterson spent the previous nine years as a high school and American Legion coach in Arizona, Missouri, and Nebraska. Three different teams won a conference championship for the first time in the programs history.

As a player, Peterson played baseball at Northwest Missouri State University from 1988-1991 before suffering a career ending shoulder injury. As a Bearcat catcher in 1988, he helped Northwest Missouri State to a 39-12 record and an appearance in the NCAA Midwest Regional. Peterson transferred to Northwest Missouri State from Cloud County Community College and also represented the USA as a player in 1987.

Peterson earned both his Bachelor's and Master's Degree in Physical Education and Health with an emphasis in administration from Northwest Missouri State. Peterson and his wife of 12 years, Heather, have two daughters, Sydney (8) and Ellie (6).

Assistant Coach, Chris Rodriguez

Coach Rodriguez joined the coaching staff in 2012 with the Mustangs. Chris handles the catchers, coaches third base and helps run the offense. He is also the recruiting coordinator. In 2014, his catcher, Collin Theroux, earned ALL Regin and All Big 8 1st team honors. In 2013, both his catchers had great success. Jordan Devencenzi earned All American honors and signed with the University of Nevada. Marcus Mastrobuoni also had a solid year and committed to Cal State Stanislaus where he went on to earn the Conference Player of the Year. He spent the previous seven years at Modesto Junior College where he was the Head Coach from 2009-12 and an assistant from 2007-2009.

Chris was a catcher at Modesto Junior College under Coach Bo Aiello. After the two seasons at Modesto Junior College, Chris was drafted by the Colorado Rockies and signed after the
1996 season. While playing with Colorado, Chris learned from former Major
Leaguers like Clint Hurdle and Jim Eppard. Chris received his Associates-
Degree from Modesto Junior College, a Bachelors degree from CSU Stanislaus
in Physical Education and Health, and his Masters degree in Sports Coaching from the United Sports Academy .


Assistant Coach Mat Keplinger

Mat Keplinger began in 2013 with the Delta Baseball staff. His primary responsibility is assisting with the pitching staff and running the strength conditioning program. He also is in charge of sports information and fundraising. Mat graduated from Lincoln HS in Stockton, earning SJAA Pitcher of the Year in 2006. He received a scholarship to the University of Nevada where he pitched for the WolfPack from 2006-11. He earned his B.A. in Journalism. Mat spent 2012 playing professionally in Germany being named to the Bundesliaga All Star Team.


Assistant Coach Pat Kelly

Pat Kelly started as an assistant coach with the Mustangs in 2011. He spent the previous five years as an assistant coach at St. Mary's High School in Stockton. During his time there he helped lead the Rams to four Section Final appearances and two consecutive Section Final Championships in 2010 and 2011. Pat graduated from the University of Colorado in 1974 where he earned four letters in Baseball and Basketball. In 2002 Regis Jesuit High School named Pat to their "All Regis Teams of All Times" in baseball and basketball. Pat married his wife Diane in 1986. They have two children: Ty Kelly (25) and Niki Kelly (19). Ty is currently playing in the Seattle Mariners organization. He was a selected in the 13th round by the Baltimore Orioles out of UC Davis. Niki is a sophomore at USC.

Assistant Coach Joe Piombo

Joe Piombo joined the Mustangs in 2014. He will be assisting with the outfielders, hitters and recruiting. Coach Pionmbo spent the previous 9 years (2004-2013: 2004-05 Section Champions) as the Head Coach at Linden High School where he was the Mother Lode League Coach of the Year in 2010, 2012, 2013. His last five years he coached the North team in the annual United Way High School All Star game. Recent Mustang players that played for Piombo include Aaron Rowley, Thomas Shull, Justin Tomek, Peter Rajkovich and Brandon Taylor. He also coached the New York Yankees 2013 first round selection, Aaron Judge. Other coaching stops include Delta College (1986), Lincoln HS (1991-93), St. Mary's HS (1995), Amador HS (1998-2002: 1998 CIF Finalist)

Joe played at Stagg High School where he was a 1st team S.J.A.A. infielder before moving on to Delta College where he played for Pat Doyle's 1980 Elite 8 team. His honors at Delta included Freshman Player of the Year and Camino Norte All Conference, earning him a scholarship at Azusa Pacific University.

Joe earned his A.A. degree in Social Science from Delta College, a B.S. from UOP, and his teaching credential from National University. He is currently working on his master's degree in Educational Administration from California Coacst University. He and his wife Kellie have been married for 30 years. They have two sons: Joe Jr. (28) and John (25) and one grandchild, Kaeah, who is 18 months old.



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San Joaquin Delta College
5151 Pacific Ave
Stockton, California 95207
(209) 954-5151