North Myrtle Beach, South Carolina (United States of America) - "Sham-Rock-N-Run". The North Strand’s premier race, the Sham-Rock & Run Half Marathon, 10K, and 5K road race, will take place on Saturday - March 21, 2026. 7:00 - All races start together: Half Marathon, 10K & 5K Start. 8:00 - 5K Awards (Overall, Masters & Age Groups). 8:30 - 10K Awards (Overall, Masters & Age Groups). 9:30 - Half Marathon Awards (Overall, Masters & Age Groups). 10:30 - Half Marathon Cutoff (16 min. miles). www.runsignup.com/Race/SC/NorthMyrtleBeach/SUNGLASSES2023?aflt_token=Nktw0AUB3nF4FPeh7Y7AWqQewFdw9sGt

Columbia, Illinois (United States of America) - "American Bottoms 100". This is a unique road ultra on a beautiful course, following the Mississippi River as you run through the historic American Bottom. Race headquarters is in Columbia, Illinois, just outside of St. Louis, Missouri. The race offers a 110-mile and a 55-mile option. The course will loosely follow the American Discovery Trail and the Kaskaskia-Cahokia Trail, Illinois' first road. You’ll watch the sun rise over the Illinois bluffs while running on levees and deserted backroads, from Columbia to the confluence of the Kaskaskia and Mississippi Rivers. You’ll make your way through many historic sites, including Piggott's Fort, Fort de Chartres, and the town of Prairie du Rocher. This is a flat and fast course with generous cut-off times, plenty of aid stations, and a friendly atmosphere. It will make a great first hundred miler or a chance for you to set a new personal record at this distance. So, if you're interested in a no-frills ultra with a low entry fee, then come test yourself this spring on the American Bottom. The 110-mile race starts at 6:00 a.m. on Saturday, March 21st, 2026 and finishes at 4:00 p.m. on Sunday, March 22nd, 2026, with a 34-hour cut-off, 18:32 minute-per-mile pace, 1,400 feet of elevation gain total, out-and-back course, 76% levees and 24% hardball road, and 17 aid stations. The 55-mile race starts at 7:00 a.m. on Saturday, March 21st, 2026 and finishes at 10:00 p.m. the same day, with a 15-hour cut-off, 16:21 minute-per-mile pace, 700 feet of elevation gain total, point-to-point course, 76% levees and 24% hardball road, and 8 aid stations. https://americanbottoms100.com

Houston, Texas (United States of America) - "Houston Holiday Series - Green6.2, 5K, 10K, Family and Kids' K". Bring the whole crew: kids can dash in their own race, everyone's welcome to delight in the upbeat energy, high-fives, and feel-good green atmosphere. It's Earth Week, Texas-style - healthy legs, happy planet! Distances: 10K, 5K, Kids' K. Expect great music, festive vibes, and a post-race party! Every participant receives a custom race shirt, chipped bib, and finisher medal! http://go.evvnt.com/3145953-0?pid=6562

Silverado, California (United States of America) - "Billy Goat Mountain Climb". The Billy Goat Climb has 3 distances: 17 miles, 1/2 marathon & 10k. All distances begin on Maple Springs Road, outside of Silverado, CA. Runners follow the creek on a gradually inclining, beat-up asphalt road for about 1.5 miles. The climb picks up at the dirt truck trail where runners switchback up the mountain for awesome Orange County & Inland Empire views. www.otrraces.com/billy-goat

Fries, Virginia (United States of America) - "New River Trail Races". The New River Trail Races are 100% dirt, flat, and entirely along the New River and Chestnut Creek in the New River Trail State Park. Each distance is an out and back course. The schedule for the race: 4:00 am 100k Start (8:00 pm cutoff), 8:00 am 50k Start (5:00 pm cutoff), 8:30 am 10k Start (5:00 pm cutoff), 9:00 am 25k Start (5:00 pm cutoff). Start Line Address: 321 Firehouse Road Fries VA. An early start at 7:30 am will be offered for 25k and 50k runners who feel that they will need more time to complete the race. 100k Finishers receive a buckle! If you register after April 1, you won't get a race shirt. Sorry for any inconvenience, but we need to make sure our local vendor has enough time to get the shirts ready for race day. www.newrivertrail50k.com