Carlsbad Marathon

Location: Carlsbad, California
Country: United States
Website: https://inmotionevents.com/event/carlsbad-marathon
2025 Marathon Date: 19/01/2025
2026 Marathon Date: 18/01/2026
Winning Time 2025: 2:33:33
% Sub-3s: 2–5%
# Sub-3s: 10–49
Total Runners: 1k–3k

The Carlsbad Marathon takes place in Carlsbad, California, offering a scenic winter marathon along the Pacific Coast. Located just north of San Diego, Carlsbad is known for its ocean views, mild weather, and relaxed, community-focused approach to race day. The Carlsbad Marathon is a popular early-year option for runners seeking dependable conditions and a quieter race atmosphere.

The course follows a largely out-and-back format, running along the historic Pacific Coast Highway and adjacent streets. While there are no major climbs, the terrain is gently rolling, with several stretches of sustained incline and decline that reward even pacing. The route is straightforward and easy to navigate, with well-marked turns, smooth road surfaces, and minimal crowding. Runners can expect open vistas in both directions, with the Pacific Ocean visible for long sections of the race.

Carlsbad enjoys cool and stable conditions in January. Temperatures at the start are typically ideal for marathon performance, often hovering in the single digits Celsius, with low humidity and a light coastal breeze. The race is well supported by volunteers, and hydration stations are frequent and well-spaced, contributing to a smooth overall experience.

Local support is consistent though relatively low-key, with a few cheering zones concentrated around the start and finish. Logistics are straightforward, with accessible parking and accommodation options within walking distance of the event hub. Race numbers are kept modest, making for a more personal experience than high-capacity city marathons.

The Carlsbad Marathon is a strong choice for sub-3 runners looking for a January race with reliable conditions and a clear route. While the rolling terrain rules out a true flat-course experience, the predictable profile and small field make it easier to find rhythm. With its coastal charm, early-season timing and strong organisation, the Carlsbad Marathon offers a balanced challenge for experienced amateurs chasing a serious time.