Races/Spain
Training plan for the Nationale-Nederlanden San Silvestre Vallecana
Thursday, 31 December 2026 in Madrid, Spain. That is 9 weeks away.
When a build would have to start
Squall plans a block of a length that suits the distance, then works backwards from race day. For this one:
10K — a 10-week build, 4 runs a week
Not enough room left for the full build.
Too close? The next one
The organiser runs this the last Thursday in December, which puts the 2027 race on Thursday, 30 December 2027. That date is not announced yet, so check it before planning to it — but a 10K build for it would start the week of 18 October 2027.
On the day
One distance: 10K. Entries, course and timings are sansilvestrevallecana.com’s. They decide when entries open and close, and whether the race runs at all — Squall sells nothing here and takes nothing from them.
The date here is the one the organiser published, rechecked every 1 hour against the list. Confirm it on their site before you enter.