Sunday, September 27 · Half Marathon · San Francisco, CA
Lake Merced ½ Marathon and 4.5 Mile Run
Register →15 days to race day
2 weeks to race day — get a training plan
A week-by-week plan scaled to Sunday, September 27, built around the San Francisco Bay run clubs on your training days — shareable by URL, no account needed.
Build my plan →Train for it with a crew
Half marathon training is four months of weekends — much easier with a crew. Run clubs in San Francisco Bay →
Frequently asked
- When is the Lake Merced ½ Marathon and 4.5 Mile Run?
- The next Lake Merced ½ Marathon and 4.5 Mile Run is Sunday, September 27 in San Francisco, CA.
- Where is the Lake Merced ½ Marathon and 4.5 Mile Run held?
- The Lake Merced ½ Marathon and 4.5 Mile Run is held in San Francisco, CA.
- What distances does the Lake Merced ½ Marathon and 4.5 Mile Run offer?
- The Lake Merced ½ Marathon and 4.5 Mile Run offers Half Marathon.
- How do I register for the Lake Merced ½ Marathon and 4.5 Mile Run?
- You can register for the Lake Merced ½ Marathon and 4.5 Mile Run on Active.com. Use the Register link above; RunVibe does not sell registrations directly.
Listed on Active.com. Race details are the organiser’s — confirm the date and start time with them before you travel.