Celebrate St. Patrick’s Day along the Pacific with the annual Moonlight Beach Half Marathon on Sunday, March 15, 2026, sponsored by Excelarace. Since its debut three years ago, this “Shamrock Run” has become a festive staple, drawing runners for scenic reminders and Irish spirit by the sea.
The half marathon begins at 7:30 AM from Moonlight State Beach and heads south on a flat, out-and-back route with expansive ocean views to South Cardiff Beach before returning north. The 10K and 5K follow the same coastal corridor with staggered starts after the half’s departure. With minimal elevation—only 11 m total gain—it’s ideal for fast times or a relaxed beginners’ pace. Course closes roughly 4½ hours after start .
The event’s standout features include:
- A vibrant St. Pat’s theme with green décor, Shamrock medals, and best-costume awards ($300/$200/$100 prizes)
- Scenic seaside energy with tranquil lagoon and ocean views, plus cool sea breezes and sunrise panoramas
- Competitive elements: prize money for top finishers in the half, plus age-group awards incentivizing performance.
- Charity support: proceeds benefit the Veterans Assistance Network of California.
- Amenities: shuttle service from San Dieguito Academy, packet pickup at Road Runner Sports in Carlsbad, race-day water stations with chip-timing.
Runners praise the course’s coastal beauty, though some reviews note early-stage organization issues like swag and finisher support. As the event grows—with 1,000–5,000 expected participants—it offers both celebratory vibes and PR potential.