The Mediterranean race returns to Castelldefels in 2027

Plan your race pace

On Sunday, April 25, 2027, Castelldefels will once again bring runners together for an event with three distances: 5 kilometers, 10 kilometers and a half marathon. The start and finish will be at the Canal Olímpic de Catalunya. The 5K is scheduled to start at 9 a.m.; the other events begin at 9:45 a.m.

The event combines urban sections with a route beside the coast, on a course described as flat and suitable for maintaining a steady pace. Runners can also take on the half marathon as a pair: both participants complete the 21 kilometers together and must pass the checkpoints and finish line at the same time. It is not a 42-kilometer marathon, despite the name of the team event.

A running day based at the Canal Olímpic

The Olympic venue in Castelldefels serves as the start and finish point for the different events and hosts services for participants. The race takes place around Castelldefels and Gavà, on the southern Barcelona coast, and offers a short distance, a 10K and a 21-kilometer course. The range of formats can bring together first-time runners and participants chasing a personal best on the same day.

The first edition was held in 2005, with marathon and one-third marathon routes between Castelldefels and Gavà. The organizer’s information says that more than 4,000 people took part in that first event. The current program listed in the reference information is different: for 2027 it includes a 5K, 10K, half marathon and a pairs event over the same 21 kilometers. It is important to distinguish the historic event name from the actual distance on offer to avoid confusing the team format with an individual 42K race.

The shared start for the longer distances may make for a busy morning, while the 5K starts 45 minutes earlier. The Canal Olímpic location also keeps the activity centered at a familiar venue rather than spread across several parts of the city. The start and finish share the same location, a useful detail when planning arrival, bib collection and meeting up with supporters.

Confirmed date, start times and race formats

The 2027 edition is scheduled for Sunday, April 25. The 5-kilometer event is set to start at 9 a.m., while the 10K and 21K, including the pairs event, begin at 9:45 a.m. Available information places both the start and finish at the Canal Olímpic de Catalunya in Castelldefels.

The 5K may be a sensible option for someone entering an organized race for the first time or looking for a short distance. The 10K offers an intermediate challenge, while the half marathon requires more sustained preparation. In the pairs format, both runners complete the full 21 kilometers together; they do not split the distance as a relay. That distinction matters when setting expectations and planning training.

Reference information describes the 10K and 21K courses as certified by the Catalan Athletics Federation. Certification matters to runners who want to record a time on a course measured to the relevant standards, although it does not by itself guarantee ideal conditions for a personal best in every edition. Results also depend on pace, weather and race management.

The 5K starts inside the Canal Olímpic, and the course begins with a lap of the venue before heading toward Avinguda del Canal Olímpic. The route description mentions two 180-degree turns on the outside section and a return to the canal, with the finish in front of the stands. That opening calls for attention: a tight turn and a narrow initial section can make it difficult to run at full speed from the first meter. A controlled start helps avoid sudden stops and sharp changes of direction.

How the 5K, 10K and 21K courses run

The 5K combines an inside lap of the Canal Olímpic with an outside section along the avenue of the same name. The outward and return sections include the turns noted in the course description; once back inside the venue, runners head toward the stands. On a short course, those direction changes matter more than they may seem: they require runners to ease off, take the corners cleanly and regain cadence without unnecessary surges. A straightforward course still rewards thoughtful pacing.

The 10K and first half-marathon lap also start inside the canal. The route then follows Avinguda del Canal Olímpic, Carrer Aragó and Avinguda de la Pineda before reaching the seafront promenade. From there, it follows an out-and-back section between Castelldefels and Barcelona, returning along Carrer 17 to the Canal Olímpic. The course alternates urban avenues and a coastal section, so pace may vary with turns and exposure to the wind.

Half-marathon runners complete a second lap after passing the 10K finish. The route repeats its opening section and extends the seaside stretch to Gavà, passing along Carrer Sitges, Carrer Cubelles and Carrer Alcanar before returning via the promenade toward Sitges and re-entering the venue. Repeating the course makes it more familiar, but also requires runners to manage their effort when their legs have already covered several kilometers. The added section toward Gavà sets the second lap apart from the first.

The organizers describe the course as almost flat, a feature that may support steady pacing but does not guarantee a fast race for everyone. On a route close to the sea, a breeze can change how hard the effort feels, especially on exposed sections; temperature and crowding can also play a part. There is not enough information to confirm the weather for April 2027. A flat profile describes the terrain, not a promise of a personal best.

The 5K appears to be the most direct of the three distances, but its route includes the tight turn mentioned in the description and a final lap inside the canal. The longer courses add distance and pass through several streets, making it important to watch for course markings and checkpoints. For anyone unfamiliar with Castelldefels, the key detail is that the route does not stay within the Olympic venue: it also uses avenues and the seafront promenade. The race links the canal with the coast.

Registration and published entry fees

The prices provided by the organizer apply to participants who own a yellow Championchip timing chip. Through December 31, 2026, the 5K costs 14 euros, the 10K costs 18 euros and the half marathon costs 23 euros. The pairs event costs 23 euros per person during this first pricing period. The fee depends on both distance and registration date.

From January 1 through March 31, 2027, the published prices rise to 15 euros for the 5K, 19 euros for the 10K and 24 euros for the half marathon or pairs event, per person. In the April 1-21 period, the listed fees are 16, 20 and 25 euros, respectively. Anyone who needs to rent a chip should budget for an additional 3 euros on top of those prices.

The stated registration deadline is Wednesday, April 21, at 11:59 p.m. Since race day is Sunday, April 25, the published cutoff identifies the planned final registration date, but availability and any changes should be checked on the organizer’s platform. The prices here apply to owners of the yellow chip; they should not be treated as a universal fee for every registration type.

For the pairs event, the price is quoted per person rather than for the whole team. Both runners cover the 21 kilometers together and pass the checkpoints and finish line at the same time. This makes it a shared challenge, not a relay. Before choosing this format, participants should consider that their common pace may depend on both runners’ fitness and strategy. Running in sync is part of the practical rules of this option.

Reference information says that previous editions included one-time accident insurance and other services linked to race day. However, not every detail from earlier events should be assumed to apply in 2027. It is sensible to distinguish published entry fees from the full conditions of participation and to check the current event information before registering. Conditions may change from one edition to the next.

Services planned for runners

Published information about the event includes medical assistance along the course and one-time accident insurance included in registration. It also lists liquid refreshments every 5 kilometers and water, an isotonic drink and fresh fruit at the finish. These services are particularly relevant over longer distances, although runners should assess their own needs rather than rely solely on the organizer’s refreshment points. Hydration and medical support are part of race logistics.

The Canal Olímpic has a bag drop, toilets and showers for participants, according to the information provided. A tear-off tab on the race bib is used to identify items left at the bag drop. Free parking for participants is also listed at the Ànecblau shopping center, subject to availability. Because capacity may limit spaces and local traffic patterns change on event days, it is worth considering other transport options rather than assuming parking is guaranteed.

A pace-maker service is planned for the 10K and 21K, with target paces of 4:00, 4:30, 5:00 and 5:30 minutes per kilometer. Pace-makers offer a guide, but they do not replace an individual strategy or guarantee that maintaining a particular speed is right for every runner. The reference information does not mention the service for the 5K. Pace groups can help regulate effort when the target suits a runner’s preparation.

Timing is handled by Championchip, and a lead vehicle with a visible clock is mentioned for the race. The organizers also list access to an official time and a downloadable diploma for participants using their own or a rented chip. Starting corrals are assigned according to verified times; the information says runners can request a change at the race expo by presenting a better result from a certified course within the previous year. Verified results help organize the start more fairly.

The race-day experience is also set to include a commemorative technical shirt, a runner’s bag and a finisher’s medal. A post-race fideuà meal is listed for an extra 3 euros, including one serving and a drink. These details add a social element to the morning, but the final confirmation of each service should come from the 2027 edition’s information. Extra amenities do not replace the official race regulations.

Getting there, bib collection and race-day logistics

The start and finish are at the Canal Olímpic de Catalunya, while the available information places bib collection at the Ànecblau shopping center in Castelldefels. The listed address is 24 Avinguda del Canal Olímpic. Road connections from the C-32 and C-31 are mentioned, along with the R2 Sud Rodalies train line, which stops at Castelldefels. Bib collection and the start are in separate locations, an important detail when planning the journey.

The bib collection hours provided in the available information include dates that do not clearly match the 2027 event calendar. For that reason, they should not be presented as confirmed times for the next race. The information also says that issues and new registrations are handled at the race expo and that changes are not processed on Sunday, but those procedures should be checked against the updated regulations. Operational hours need specific confirmation for 2027.

The starting-corral system may help reduce passing and crowding at the start of the longer distances. If an assigned corral does not match a recent performance, the organizer’s information says runners can present a certified result at the race expo and receive an identifying wristband. An estimated time alone is not enough; the result must come from a certified course. Start organization is based on verifiable results.

The rail option is worth considering for runners arriving from Barcelona or other stations on the Rodalies network. Reference information mentions a possible return ticket for participants, subject to a printed voucher being exchanged at the ticket office; this has not been confirmed for 2027. The same applies to specific collection hours and venue services. It is better to confirm each travel arrangement in the current event information than assume previous conditions remain in place.

Preparing for the race and choosing a distance

The choice between the 5K, 10K and 21K depends on experience, recent training and the goal for race day. A short distance is not necessarily easy: the pace tends to be quicker, leaving little room to correct an overly fast start. For the 10K, a consistent running base is useful; the half marathon calls for broader preparation and practice with pacing and hydration. The right distance is the one that matches current preparation.

A flat profile may tempt runners to start quickly, especially during the opening section of the 5K or the first kilometers of the 10K and 21K. But surging with the excitement of the crowd can take its toll in the second half. A controlled effort, with attention to corners, wind and physical cues, is usually wiser than chasing an ambitious pace from the outset. A favorable course does not remove the need to pace carefully.

The pairs event adds a layer of coordination. Both runners must complete the 21 kilometers together and reach the checkpoints and finish line at the same time. It can be a shared experience, but the pair should agree in advance on a pace both can sustain and communicate during the course. If there is a substantial difference in ability, the outcome may depend more on teamwork than individual speed. The pair competes as one unit throughout the course.

The seaside setting is another reason not to base a race strategy on a weather forecast that is not yet known. April can bring comfortable conditions, but wind and temperature change from year to year. Testing shoes, clothing and any accessories before race day helps avoid trying new gear when there is little time to deal with blisters or discomfort. Proven comfort is better than a last-minute change.

A coastal event where precise information matters

The Castelldefels event brings together features that often appeal to a spring road race: several distances, a course described as flat and sections beside the coast. Its base at the Canal Olímpic and its route along the seafront define a day that combines a sports venue, urban avenues and coastline. The main draw is the range of courses in one event.

Available information for 2027 confirms the April 25 date, start times and stepped prices for yellow-chip holders. It also outlines the course and several services, but operational details from previous editions should not automatically be carried over, particularly bib collection hours and certain travel arrangements. Separating confirmed facts from older information helps avoid confusion.

For anyone considering taking part, the essential details are clear: the 5K starts at 9 a.m.; the 10K and 21K begin at 9:45; the start and finish are at the Canal Olímpic; and the pairs event requires both runners to complete the half marathon together. Published fees start at 14 euros and reach 25 euros depending on distance and registration date, with an additional 3 euros to rent a chip. The most reliable planning starts with checking the current regulations, especially as race day approaches.

Rather than a 42-kilometer race, the announced program consists of a short race, a 10K and a half marathon, plus a pairs format over the latter distance. That distinction clarifies what the event actually offers and the preparation each option requires. In April, the coast will provide the backdrop; pace and distance will shape each runner’s experience. A good race day also depends on knowing the event’s conditions accurately.