Grand Prix Series Trifecta consists of three extreme races: Extreme Endurance Challenge (Feb. 8, 2014), St. Paddy’s Day Engineer Challenge (March 15, 2014), and the MARSOC Mud, Sweat & Tears (April 26, 2014). Together, these three races will test your strength, stamina, endurance and commitment. What makes this series unique is that runners will compete against and with America’s toughest fighting force, the U.S. Marine.

Each race is held aboard Marine Corps Base Camp Lejeune and its surrounding camps and held on actual Marine Corps training courses. The courses will include a variety of obstacles, mud crawls and challenging features, both man-made and natural. If you compete in all three races in 2014, you will become a member of an elite brotherhood. To celebrate your accomplishment, you will receive a Trifecta T-shirt and medal.

Registration is now open for all three races. For registration forms and more information, visit www.mccslejeune.com/grandprix or send email to lejgrandprix@usmc-mccs.org.