Your plan in four answers
Set for May 16, 2027, about 29 weeks out.
- Distances
- 12K
- Terrain
- Hilly
- Taper starts
- May 7, 2027
Course
The Bay to Breakers course
A 12K across San Francisco from the bay to the Pacific, and as much a costumed street party as a race. The Hayes Street Hill in the second mile is steep and sorts the field immediately.
- Terrain
- Hilly
- Distances
- 12K
- Weather on race day
- May in San Francisco is cool and often foggy, which suits racing well.
What to train for
One hard, steep climb early followed by a long gradual rise through Golden Gate Park.
Hill repeats of two to three minutes are the specific preparation.
Sample week
A sample Bay to Breakers training week
A week from the middle of the build, about six weeks out. Your plan sets the real distances and paces from your own fitness and adjusts them every week as you train.
- Monday
- Rest, or 20 minutes of mobility
- Tuesday Key session
- Hill repeats: 8 × 60 s up a steady grade, jog back down
- Wednesday
- Easy run, 5 mi
- Thursday Key session
- Tempo run, 5 mi with 2 mi comfortably hard
- Friday
- Recovery run, 3 mi, or cross-train
- Saturday Key session
- Long run, 7–8 mi on hilly ground, steady effort on the climbs
- Sunday
- Easy run, 3 mi, then 6 relaxed strides
Your build to race day
Taper
Tapering for the Bay to Breakers
Start the taper seven to ten days before race day. Cut your weekly volume by about a third, then by half in race week, and keep a few short efforts at race pace so your legs stay sharp. The course is hilly, so keep one short hill session in the first taper week to keep the climbs familiar. With the race on May 16, 2027, your taper starts around May 7, 2027.
Also in Claude
Ask Claude for this plan
Add AthleteSpace to Claude once, then paste this prompt and put in your own numbers.
Build me a training plan for the Bay to Breakers (12K) on May 16, 2027. I run [distance] a week, [days] days a week, easy pace [pace].
Bay to Breakers training questions
How long should I train for the Bay to Breakers?
Most runners give a 12k twelve to sixteen weeks of focused training on top of an existing base. The plan above counts back from your actual race date, so if you have less time than that it builds the best plan the remaining weeks allow rather than pretending you have longer.
Is the Bay to Breakers course hilly?
Hilly. A 12K across San Francisco from the bay to the Pacific, and as much a costumed street party as a race.
What is the weather usually like at the Bay to Breakers?
May in San Francisco is cool and often foggy, which suits racing well.
When should I start tapering for the Bay to Breakers?
Start the taper seven to ten days before race day. Cut your weekly volume by about a third, then by half in race week, and keep a few short efforts at race pace so your legs stay sharp. The course is hilly, so keep one short hill session in the first taper week to keep the climbs familiar. With the race on May 16, 2027, your taper starts around May 7, 2027.
Do I need an account to get a Bay to Breakers training plan?
No. The plan above builds in your browser with no account, no email, and no card. Make a free account only if you want to keep it, log your runs against it, and have the coach keep adapting it as your training goes.