The Millars UCI Gran Fondo World Series
Castellón de la Plana · March 14, 2027
A qualifying round of the UCI Gran Fondo World Series starting in Castellón de la Plana, 157 km and 2,200 m D+ through Sierra de Espadán, Salto del Caballo and the Alt Millars, with slots for the UCI World and European Championships.
The Millars UCI Gran Fondo World Series 2027 registration opens on July 9, 2026
Save the date and start getting your gear ready: see everything you need to arrive in shape.
The Millars UCI Gran Fondo World Series
The Millars UCI Gran Fondo World Series is the standout road event on the UCI calendar in the Valencian Community. Starting and finishing in Castellón de la Plana, the race reaches its 4th edition in 2027, sharpening its international profile: a new OPEN category for riders not chasing qualification, handbike and tandem participation, and direct slots for the UCI Gran Fondo World Championship (Thônes, French Alps) and the European Championship.
A 157-kilometre route
The course covers 157 km and 2,200 m of positive elevation through inland Castellón, chaining together some of the province’s most demanding climbs:
- Sierra de Espadán
- Salto del Caballo
- Alt Millars
The profile mixes flat sections along the coast with technical climbs inland, typical of UCI-scored races where pace management from the opening peloton matters most.
A race with international reach
Being part of the UCI Gran Fondo World Series sets The Millars apart from other cyclosportives: official timing, qualifying slots for the World and European Championships, and a field that draws riders from outside Spain chasing points. The new 2027 OPEN category opens the race to anyone who simply wants to enjoy the course without competitive pressure.
Castellón beyond the race
Castellón de la Plana combines a Mediterranean beach, El Grao’s dining scene, and an inland sierra reachable in under an hour by car, ideal for extending your stay before or after the race. Riders travelling from outside the Valencian Community can also explore other events in the area in our Valencian Community events section.
Your 360 Pack
Everything you need to prepare for this event, in one place.
The Millars UCI Gran Fondo 2027 registration
Registration opens 9 July 2026 on Rockthesport for the 4th edition. As a UCI-scored race, it hands out direct qualifying slots for the World and European Gran Fondo Championships.
Tips
- Register early if you're chasing a UCI World or European slot: they're allocated by age category
- The new 2027 OPEN category lets you ride without chasing UCI qualification
Where to stay for The Millars
Castellón de la Plana, the start and finish city, has urban hotels minutes from the start arch and plenty of seafront apartments in El Grao.
Tips
- Book in central Castellón to walk to the start
Bike gear for The Millars
With 2,200 m D+ over 157 km and the Sierra de Espadán and Salto del Caballo climbs, a compact chainset and a reliable bike computer help you pace a UCI-level race.
Guides to get you ready
Tips
- Fit a compact chainset: the Salto del Caballo has demanding ramps
Technical clothing for The Millars
March inland from Castellón can start cold at the line and warm up by midday on the lower sections; layering avoids surprises.
Guides to get you ready
Tips
- Carry a packable windbreaker for the cold March start
Nutrition for The Millars
157 km with 2,200 m D+ at UCI race pace demands a planned hourly carbohydrate strategy, using the official feed stations.
Guides to get you ready
Tips
- Plan for 60-90 g of carbs per hour before tackling the Salto del Caballo
How to get to Castellón de la Plana
Castellón is 75 km from Valencia, which has an airport and good motorway access (AP-7), and just over 60 km from Vinaròs if coming from Catalonia.
Guides to get you ready
Tips
- Valencia airport is the most practical option for flying in
Sports insurance for The Millars
As a UCI-scored race, entry requires a federation licence or a one-day insurance valid for road competition.
Tips
- Check your licence covers UCI-scored races before you register
