Valencia Marathon 2026: every workout until December 6, ready on your Garmin
Race day is Sunday, December 6, 2026; a 12-week plan started on Monday, September 14. Already training? In two minutes, Running Workout links your Garmin to your AI assistant: it reads your recent runs, sets your paces for Valencia and sends the final weeks' workouts to your watch.
Last updated: October 27, 2026
Valencia Marathon Trinidad Alfonso Zurich
Sun, December 6, 2026
27 days
to race day
- Distance
- 26.2 mi
- Edition
- 46th
- Entry
- Sold out, waiting list
- Time limit
- 5 hr 30 min
Less than 12 weeks to go: too short for a full plan. Your assistant prepares your final sessions and race paces.
My workouts until December 6Free to start · official Garmin connection
Try it now
Ask your assistant
Once your Garmin is connected, paste one of these into Claude or ChatGPT:
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« I have a few weeks left before the Valencia Marathon on December 6: send this week's three workouts to my watch. »
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« I'm aiming for 3:30 on Valencia's flat course: what pace per mile should I hold? »
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« Analyze my last long run: did I hold the marathon pace planned for Valencia? »
Free to start · 4 workouts a month sent to your watch
Why Valencia is the race for records
The course is almost entirely flat, with under 60 metres of cumulated climb, and it loops through the city with no wind-exposed stretch. Early December temperatures sit between 8 and 16 °C at the start: ideal for holding a hard pace for three or four hours.
The practical consequence: your time will depend almost entirely on your preparation, not the terrain. It is the marathon where an ambitious goal makes the most sense, provided you validated the target pace in training.
The preparation calendar from September
For December 6, 2026, a 12-week plan started on Monday, September 14, and a 16-week plan on Monday, August 17. The first weeks build volume, the next ones build the long run and marathon pace, the last ones taper. If you are arriving now, it is too late for a full 12-week plan: your assistant then sends the workouts one by one, based on your recent runs.
- Weeks 1 to 3: volume and a long run up to 90 minutes.
- Weeks 4 to 9: marathon-pace blocks, long runs from 1 h 35 to 2 h 30.
- Weeks 10 to 12: reduced volume, paces kept, fresh legs on race day.
Your AI coach sets the length from the exact date you give it and from your current volume read on Garmin. It never starts a 16-week plan when the race is 11 weeks away.
Pacing strategy on this course
On such a regular course the classic trap is starting too fast in the excitement of the start. The plan's rule: the first three kilometres at target pace plus 10 seconds per kilometre, then target pace to the 35th, then grit your teeth without speeding up.
Schedule the plan's "Race" session on your watch: it carries the pace range per segment, and the watch alerts you as soon as you leave the zone. On a flat course, that alert is worth gold.
Frequently asked questions
When is the 2026 Valencia Marathon?
Sunday, December 6, 2026, for the 46th edition, according to the official rules. The first wave starts at 8:15 a.m., later waves up to 9:35; the official time limit is 5 hours 30 minutes.
Can you aim for a personal best in Valencia?
Yes: the course is flat, so your time depends mostly on your preparation. Provided you have run the target pace for 9 to 12 miles continuously during training.
How many sessions a week for this marathon?
3 to 7 depending on your plan variant. Three sessions are enough to finish; four or five to chase a time.
Is Running Workout free?
Free to start: Garmin connection, plans, reading your activities and 4 workouts a month sent to your watch. Running Workout Pro (€4.90 a month or €35 a year, no commitment) removes the limit.
Valencia Marathon Trinidad Alfonso Zurich
December 6 is 27 days away.
Your assistant prepares your last sessions, your taper and your race paces, right up to the start.