Your plan in four answers
Set for November 29, 2026, about 5 weeks out.
- Distances
- Half marathon, 15K, 5K
- Sport
- Running
- Taper starts
- November 17, 2026
Course
The SC21K course
All three races start from the event arena on the Beira Mar Continental (Av. Claudio A.
Read the full course notes
Barbosa, Balneário Estreito), on the mainland side of Florianópolis, where kit pickup also runs the day before. The 21K and 15K go off together at 5:31 a.m., one minute after the elite 21K wave, and the 5K follows half an hour later at 6:01 a.m. The courses are measured by a CBAT-accredited measurer, and one of the signature moments is the tunnel section, where a DJ plays for the runners. The organiser has not published a detailed route map or elevation profile in text, so check the final course release in the weeks before the race. Time limits are generous: 3 hours for the 21K, 2 hours for the 15K and 1 hour for the 5K.
- Distances
- Half marathon, 15K, 5K
- Weather on race day
- Late November in Florianópolis is usually mild and humid at a 5:30 a.m. start, around 19–22 °C, with daytime highs near 26 °C and humidity close to 80%. Rain falls on about one day in three that month, so plan your drinks for sticky conditions and expect the effort to feel harder in the final kilometres as the sun comes up.
What to train for
The dawn start is the first thing to train for: do a few long runs at 5:30 a.m. with your usual pre-race breakfast so your stomach and legs are used to racing that early.
Build to 18–20 km long runs for the half (14–16 km for the 15K) with the last 5 km at goal pace.
Because the race is warm and humid, practise drinking every 20 to 25 minutes on long runs and do one weekly tempo of 20–30 minutes at half marathon effort. Add 6–8 short hill or ramp repeats to stay strong on the tunnel approaches and any bridge ramps once the final course is published.
Sample week
A sample SC21K 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
- Intervals: 5 × 1 km at 5K to 10K effort, easy jog between
- Wednesday
- Easy run, 8–10 km
- Thursday Key session
- Goal-pace run, 11 km with 6 km at race pace
- Friday
- Recovery run, 6 km, or cross-train
- Saturday Key session
- Long run, 16–19 km easy
- Sunday
- Easy run, 6 km, then 6 relaxed strides
Your build to race day
Taper
Tapering for the SC21K
Start the taper ten to fourteen 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. With the race on November 29, 2026, your taper starts around November 17, 2026.
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 Meia Maratona SC21K (Half marathon) on November 29, 2026. I run [distance] a week, [days] days a week, easy pace [pace].
SC21K training questions
How long should I train for the SC21K?
Most runners give a half marathon 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 SC21K course hilly?
All three races start from the event arena on the Beira Mar Continental (Av.
What is the weather usually like at the SC21K?
Late November in Florianópolis is usually mild and humid at a 5:30 a.m. start, around 19–22 °C, with daytime highs near 26 °C and humidity close to 80%. Rain falls on about one day in three that month, so plan your drinks for sticky conditions and expect the effort to feel harder in the final kilometres as the sun comes up.
When should I start tapering for the SC21K?
Start the taper ten to fourteen 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. With the race on November 29, 2026, your taper starts around November 17, 2026.
Do I need an account to get a SC21K 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.