Irving residents can mark their calendars for the final race of the year in the Irving Marathon Running Series. The 8th Annual Irving Frost Marathon returns to the Toyota Music Factory in Irving‑Las Colinas on Saturday, Dec. 19, featuring a 5K, 10K, Half Marathon and full Marathon, according to NBC 5.

The event opens with a festival at 6:00 a.m., followed by the Marathon and Half Marathon at 7:30 a.m., the 10K at 7:45 a.m., and the 5K at 8:00 a.m. Runners will start at the Plaza, travel a scenic route through Las Colinas and along Lake Carolyn, and finish back at the Plaza for a post‑race celebration.

All four distances are USATF‑certified, and the Marathon course qualifies runners for the Boston Marathon. Participants receive a long‑sleeve performance shirt, a custom bib with timing chip, cash prizes, age‑group awards and team‑challenge awards. Convenient parking is provided on‑site.

Proceeds from the Frost Marathon benefit the Irving Schools Foundation, which awards scholarships to Irving ISD students who have volunteered in the series. The race series, founded in 2019 by Lazaro Alvarez, has grown into a community‑focused movement that promotes health, fitness and a positive economic impact for the city.

Registration is open now, but the fee will increase after Nov. 15 and again after Dec. 13, so NBC 5 urges interested runners to sign up early. The online registration portal is linked from the Irving Marathon Running Series website.

Looking ahead, the series has already announced its first 2027 event—a Valentine’s Day‑themed “Love on the Run” Half Marathon—providing a glimpse of continued opportunities for Irving families to stay active.

What’s next: Runners should register before the Dec. 13 price increase to lock in the current rate. On race day, participants can enjoy the opening festival, compete on the certified courses, and gather for the post‑race celebration at The Plaza.

Sources: nbcdfw.com, nbcdfw.com, nbcdfw.com