Jeff Rabberman – Head Coach


Coach Rabberman is entering his 9th year in the Gaithersburg Giants Organization.  He is a 1997 graduate of Council Rock High School (PA) where he played football, basketball, and baseball, and continued his baseball career with Bucks County Community College.  He then transferred to Temple University where he earned his B.S. Degree in Kinesiology in 2002. He earned his Master's of Science in Athletic Administration from McDaniel College in 2016.
Rabberman has been the Head Varsity Baseball Coach at Gaithersburg High School since 2009.  His teams have posted a record of 128-48 in those 8 years, with 5 division championships, 3 regional championships and a State Championship in 2015.  While coach of the Giants, his teams have won 169 games while winning the MCBL championship in 2011. He guided the Giants in the CRCBL to 3 playoff appearances in their first 4 years in the league and advanced to the LCS semifinals in 2016. He is currently a PE teacher at Gaithersburg HS.  He and his wife Lori have two sons, Andrew and Carter. 

Scott Blackwood – Assistant Coach

Coach Blackwood has been a part of the Giants Organization since 2012. He managed the Giants Red team in the Maryland Collegiate Baseball League in 2012 before moving with them to the Cal Ripken League in 2013 to be an assistant coach. He is a 2002 graduate of Quince Orchard High School in Gaithersburg, Maryland. He continued his playing career at Montgomery College Rockville before transferring to Salisbury University to finish his B.S. degree in Physical Education. He, also, played two summers for the Rockville Express in the Cal Ripken Collegiate Baseball League. In 2016, he earned his Masters of Science degree in Athletic Administration from McDaniel College.

Coach Blackwood has been the Varsity Baseball Coach at Winston Churchill High School in Potomac, Maryland since 2010. He has led the Bulldogs to two regional finals and one regional championship in 2013. Prior to that, he was a Volunteer Assistant Coach at Montgomery College-Rockville. He is currently a Physical Education teacher at Parkland Middle School. He and his wife Nichole have three sons, Lucas, Beau, and Bryce.

Jesse Frawley – Pitching Coach

Coach Frawley is entering his second year as the pitching coach for the Gaithersburg Giants. He played for the Giants for two summers (2013-14) and was selected to the Cal Ripken League All Star game in 2013. Coach Frawley played at Central Connecticut State University where he completed his Bachelors Degree in Physical Education. Coach Frawley was born and raised in Bethel, CT and moved down to Maryland to begin a career in teaching and coaching in 2016. He is now a Physical Education/Health Teacher at Gaithersburg Middle School as well as the pitching coach for JV/V at Gaithersburg High School. 


Pat Hisle – Assistant Coach