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San Diego Holiday Half Marathon: The Gift of a Fast, Downhill PR Course
Some races are built for the experience. The San Diego Holiday Half Marathon & 5K is built for the clock. Now in its 14th consecutive year, this December 19, 2026 race is one of the most popular Boston Qualifier attempts in Southern California — thanks to a 711-foot net elevation drop that gives your legs a fighting chance at a personal best. It sells out every year without exception.
The Course
The half marathon starts at 7:30 AM at 14455 Penasquitos Dr in Rancho Penasquitos, the highest point of the race. After a brief climb on Carmel Mountain Road around mile 1.5 (the only meaningful hill on the course), the route drops onto the State Route 56 bike path and runs southwest all the way to Sorrento Valley Road. That’s 711 feet of net downhill over 13.1 miles — consistently one of the fastest courses in the San Diego road race calendar. A post-race bus returns runners from the Sorrento Valley finish back to the start, simplifying the point-to-point logistics.
Race Day Experience
The 7:30 AM start in December means cool, crisp temperatures — ideal racing conditions for pushing pace. The bike path course keeps traffic-related interruptions minimal and the atmosphere focused. With 1,000–5,000 runners, the field is big enough for camaraderie but small enough to feel personal. Note that there is no bib mailing option, so plan to pick up your bib on-site before race day. The holiday season timing adds a festive backdrop to what is, at its core, a serious PR race.
Why Run the San Diego Holiday Half Marathon?
If you’re chasing a Boston Qualifier time, the net-downhill course gives you a structural advantage that few San Diego races match. The race’s 14-year track record means the logistics are dialed in — this isn’t an event still figuring itself out. Sell-out status every year reflects genuine demand from the local running community. The December timing also makes it a natural motivator to stay in training shape through the holiday season — a built-in accountability mechanism most runners appreciate.
Travel & Logistics
The race starts in Rancho Penasquitos, a north San Diego neighborhood accessible via I-15 and SR-56. The start area is residential and suburban; parking is available but limited, so carpooling is wise. The finish at Sorrento Valley Road is near the I-5/I-805 corridor, and the race-provided bus makes the point-to-point format manageable. For accommodations, the Carmel Valley and Sorrento Valley areas have numerous business-travel hotels, or choose downtown San Diego (about 15–20 miles south) for more dining and entertainment options before and after race weekend.
How to Register
Registration for the San Diego Holiday Half Marathon & 5K is available through RunSignUp. Visit the official website for race schedule details and to sign up early — this one sells out every single year. Don’t wait until December to decide.
San Diego Holiday Half Marathon: The Gift of a Fast, Downhill PR Course
Some races are built for the experience. The San Diego Holiday Half Marathon & 5K is built for the clock. Now in its 14th consecutive year, this December 19, 2026 race is one of the most popular Boston Qualifier attempts in Southern California — thanks to a 711-foot net elevation drop that gives your legs a fighting chance at a personal best. It sells out every year without exception.
The Course
The half marathon starts at 7:30 AM at 14455 Penasquitos Dr in Rancho Penasquitos, the highest point of the race. After a brief climb on Carmel Mountain Road around mile 1.5 (the only meaningful hill on the course), the route drops onto the State Route 56 bike path and runs southwest all the way to Sorrento Valley Road. That’s 711 feet of net downhill over 13.1 miles — consistently one of the fastest courses in the San Diego road race calendar. A post-race bus returns runners from the Sorrento Valley finish back to the start, simplifying the point-to-point logistics.
Race Day Experience
The 7:30 AM start in December means cool, crisp temperatures — ideal racing conditions for pushing pace. The bike path course keeps traffic-related interruptions minimal and the atmosphere focused. With 1,000–5,000 runners, the field is big enough for camaraderie but small enough to feel personal. Note that there is no bib mailing option, so plan to pick up your bib on-site before race day. The holiday season timing adds a festive backdrop to what is, at its core, a serious PR race.
Why Run the San Diego Holiday Half Marathon?
If you’re chasing a Boston Qualifier time, the net-downhill course gives you a structural advantage that few San Diego races match. The race’s 14-year track record means the logistics are dialed in — this isn’t an event still figuring itself out. Sell-out status every year reflects genuine demand from the local running community. The December timing also makes it a natural motivator to stay in training shape through the holiday season — a built-in accountability mechanism most runners appreciate.
Travel & Logistics
The race starts in Rancho Penasquitos, a north San Diego neighborhood accessible via I-15 and SR-56. The start area is residential and suburban; parking is available but limited, so carpooling is wise. The finish at Sorrento Valley Road is near the I-5/I-805 corridor, and the race-provided bus makes the point-to-point format manageable. For accommodations, the Carmel Valley and Sorrento Valley areas have numerous business-travel hotels, or choose downtown San Diego (about 15–20 miles south) for more dining and entertainment options before and after race weekend.
How to Register
Registration for the San Diego Holiday Half Marathon & 5K is available through RunSignUp. Visit the official website for race schedule details and to sign up early — this one sells out every single year. Don’t wait until December to decide.