Coaching Staff

Ryan Duncan
In 1997, Ryan Duncan founded Speed Inc. located in Atlanta Georgia. Ryan and his superbly trained staff have specialized in training teams in the cutting edge of applied sport science. Speed Inc. has become well regarded as being the best in team speed development, as well as in training top individual athletes.

Ryan attended Landmark High School where he was an all state quarterback and winner of various other awards in both football and track. Ryan then received a football scholarship to Liberty University in Lynchburg, VA to play for NFL coach of the year, Sam Rutigliano, of the Cleveland Browns. He graduated in 1997 with a Bachelors of Science degree in Sports Management with minors in Exercise Science, Nutrition, Psychology, and Theological Biblical Study’s.

Coach Duncan has trained thousands of athletes at all levels and has not only proven his knowledge of performance development, but also his outstanding ability to teach his program to athletes of all ages. Ryan is regarded to be one of the top up and coming speed /movement coaches in the country. His never ending strive to take the modern applied sciences of neurology and physiology to the every day training of athletes of all levels will always keep his athletes on top.

Hayes Mercure
While in high school, Hayes was a stand-out athlete and 4-year letterman in both football and track and field. Hayes played a variety of positions in football ranging from fullback, halfback, quarterback, and tight end. And defensively, he played defensive end and linebacker. In track and field, Hayes was a region champion in the 100m high hurdles, and runner-up in discus. He competed in both events in the Georgia track and field state championship. Hayes was a member of the four-time state championship track and field team at Landmark. Hayes attended Auburn University, where he played football for the Tigers as a safety and eventually moving to linebacker. His sophomore year, he transferred to the University of West Georgia, where he was a starter at linebacker, before starting his final two seasons at tight end. Hayes has been coaching SPEED, Inc. camps since 2001, and has enjoyed every minute of it.

Roby Ross
Roby was a graduate of Landmark Christian School, where he was a stand-out athlete and letterman in football, basketball, baseball and track. Roby was also the valedictorian of his class. After high school, he attended Berry College where he obtained a Bachelor’s of Science degree in Physical Education, and then furthered his education with a Master’s of Education Degree in Middles Grades Education from Berry College, as well. After college, Roby returned to Landmark Christian School as a football coach in 1996. While coaching football, Roby has been a part of 5 Regional Championships and 10 Playoff Appearances. He is the current Defensive Coordinator for the Landmark War Eagles. Roby also started coaching track in 1996 and since then has earned 11 Regional Championships and 12 State Championships, setting a record for most consecutive state championships in track and field in Georgia. Roby is also the current Dean of Students at Landmark Christian School. Roby has been a speed Inc. coach since 1999.

Chad Walker
Chad was a record-setting wide receiver for the University of West Georgia. While playing football at UWG, Chad broke 11 school records, and currently still holds 8 of those records. Chad was named to 2 All-American teams, was the 1995 Division II Offensive Player of the Year and MVP, and was also the 1996 Athlete of the Year for the State of Georgia. Chad was also selected for the 1995 Division II All-Star Game. After college, Chad was a member of the New England Patriots in 1995, and then a member of the New York Jets in 1996. Chad earned a Bachelor’s Degree in Physical Education from the University of West Georgia, and then went on to earned a Master’s Degree in Administration from Jacksonville State University. After his playing days were over, Chad was a wide receivers coach at the University of West Georgia from 1995-1996, before moving to Wheeler High School, where he was an assistant football coach from 1997-1999. He was also the Head Track Coach at Wheeler High from 1998-2004. As the head track coach, Chad won the State AAAAA Championship in Track and Field in 2003. Chad is currently the Head Track Coach at Starr’s Mill High School and also a wide receivers coach for the Starr’s Mill football team. Chad has been a top coach for SPEED, Inc. since 2001.

Chris Rentz
Chris has been a member of the SPEED, Inc. coaching staff since 2001. Chris was a Track and Field two time state champion in the 400m Relay as well a four year letterman in Football. After High School Chris went on to run track in college. He is a graduate from the University of West Georgia where he earned his degree in Physical Education and Health. Chris currently coaches football and track at Chapel Hill High School in Douglasville, Georgia. He is the quarterback and running back coach for football and the sprint coach for track. Chris has been able to implement the SPEED program at Chapel Hill. The success of this program has had an immediate impact. This past season, the girl’s track team finished 2nd at region, and Chris led the boy’s team to a region championship.

Riley Swanson
Riley is a graduate of Sandy Creek High School, where he was an award-winning cornerback and wide receiver for the Patriots. He was a three-year starter and was named to the Georgia High School “Super 11” team his senior year, placing him as one of the best 11 football players in the state of Georgia. He was also selected to the First Team All-Coweta/Fayette County, a two-time all-region selection, and a Class AAAA all-state selection. After high school, Riley signed a full scholarship with the Wake Forest Demon Deacons, where he was a three-year starter at cornerback. He was named the to the All-ACC Freshman team and was the team’s top freshman in terms of tackles. Riley left Wake Forest ranked fourth all-time in the career passes defended list. He was acquired by the Buffalo Bills in 2007. Riley has been a member of the SPEED, Inc. coaching staff since 2003.

Kyle Harrell
Kyle is a graduate of Livingston High School in Livingston, Texas. While at Livingston High, Kyle was a stand-out offensive lineman, where he earned a football scholarship to Southwest Texas University as an offensive lineman. While playing for the Bobcats, Kyle was a three-year starter as an offensive guard earning himself All-Conference honors his senior year. Three times, he was on the Commissioner’s List for academic performance. He graduated from Southwest Texas with a degree in Exercise Sports Science and took a coaching job with Caney Creek High School, where he served as the offensive line and tight ends coach. After spending a year at Caney Creek, Kyle moved to Cinco Ranch High School, where he was the varsity offensive line coach and also the junior varsity head coach. After working three years with Cinco Ranch High, Kyle returned to his alma mater as the head Strength and Conditioning for Southwest Texas University. Kyle has been a member of the SPEED, Inc. staff since 2001.

J.R. Lemon
Along with Riley Swanson, J.R. Lemon is a graduate of Sandy Creek High School, where he was an all-star running back. He was a consensus All-American, be recognized as one of the top running backs in the nation. J.R. was a finalist, in 2000, for the prestigious Watkins Award, which is given annually to the nation’s top African-American high school football player. He was ranked No.37 on the SuperPrep’s Elite 50 list of the nation’s top recruits. SuperPrep also ranked him the sixth best running back in the nation. PrepStar selected J.R. to its “Dream Team” and ranked him as the eighth best running back in the nation. After high school, J.R. was a stand-out running back for the Stanford University Cardinals. While at Stanford, J.R. was a 4-year starter and was ranked ninth all-time on the touchdown list. In 2006, J.R. was a member of the Oakland Raiders as a running back. He has been a SPEED, Inc. coach since 2001.

Reggie Ellington
Reggie, along with Riley Swanson and J.R. Lemon, is also a graduate of Sandy Creek High School. While at Sandy Creek, Reggie was an all-state running back where he tallied up 1,150 yards rushing and led the team with 16 touchdowns his senior season. He also led his team to the State Championship his senior year and was named the Offensive Most Valuable Player. Reggie also ran track for the Patriots where he was a member of the 4x100 meter relay team that broke the school record. After high school, Reggie signed a football scholarship to Charleston Southern University, where is currently a running back for the Buccaneers. Reggie has been a SPEED, Inc. coach since 2007.

Martin Huggins
Martin has been a member of the SPEED, Inc. coaching staff since 2005. Martin attended Woodward Academy where he was an all-state wide receiver and safety. He was a First Team All-Region and also First Team All-Georgia-Florida All-Star Free Safety. Martin also lettered in track and basketball while at Woodward Academy. After high school, Martin attended the United States Naval Academy where he played wide receiver for the Midshipmen. In 2002, Martin transferred from the Naval Academy to the University of North Alabama, where he was a three-year starter at wide receiver for the Lions. Over those three years, Martin tallied up over 1,000 yards receiving. He was voted Team Captain his senior year. Martin is currently the Service Programming Director at Southside Church in Peachtree City, Georgia.

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