RUNNING: 2026 Semi-Marathon Calendar

2026 Semi-Marathon Calendar

Source: https://www.finishers.com/en

Here are the 2026 semi-marathon dates organized into a table:

2026 International Half-Marathon Calendar

Top 4 Websites for Half-Marathons

1. HalfMarathons.net

• Best For: Finding specifically 21.1 km races across the globe.
• Why it’s great: It is one of the most comprehensive directories dedicated solely to this distance. It includes a massive database of races in the USA and a growing international section, often featuring helpful descriptions of the course (e.g., “flat,” “hilly,” or “scenic”).

2. MarathonGuide.com

• Best For: Honest runner reviews and “unfiltered” feedback.
• Why it’s great: While it sounds like it’s only for full marathons, it covers almost all half-marathons attached to major events. The “Runner Reviews” section is legendary—runners post about everything from the quality of the medals to whether the water stations ran out of cups.

3. AIMS World Running

• Best For: Finding “official” and accurately measured international races.
• Why it’s great: AIMS (Association of International Marathons and Distance Races) is the organization that certifies race courses. If you want to ensure the course you’re running is exactly 21.0975 km and professionally organized, their calendar is the definitive source for world-class events.

4. RaceRaves

• Best For: A modern, community-driven experience.
• Why it’s great: It has a very clean interface and allows you to “wishlist” races. It’s excellent for finding “hidden gem” races that might not be on the major World Athletics lists but are highly rated by the community for their atmosphere.

Pro-Tip: The “SuperHalfs” Series

If you are looking for a specific challenge, keep an eye on the SuperHalfs website. It tracks a prestigious series of six races (Lisbon, Prague, Berlin, Copenhagen, Cardiff, and Valencia). Completing all six within 60 months earns you a special “SuperMedal.”

Finishers.com

Finishers.com is a high-quality, modern race directory and booking platform that has quickly become a favorite in the running community, particularly in Europe.

While many older sites feel like basic databases, Finishers.com focuses on the “travel and run” experience, treating races like vacation bookings.

What makes Finishers.com unique?

• The “Travel Agency” for Runners: It doesn’t just list dates; it categorizes races by “Themes.” You can filter for races that are “By the Sea,” “In the City,” “In the Forest,” or even “Festive” (think gourmet food stations or costumes).
• Direct Registration: For many European races, you can register and pay for your bib directly on their platform. This is especially helpful if the official race website is only in a local language you don’t speak.
• Curated Content: They have excellent blogs and “Hidden Gem” lists that highlight smaller, beautiful races that might not show up on major international lists.
• The “SuperHalfs” Partner: They are one of the primary platforms for tracking and entering the SuperHalfs series we discussed earlier.

Is it reliable?

Generally, yes. It has a high Trustpilot rating (4.6/5). However, because it acts as a middleman for some races, a few users have reported delays in receiving their final bib confirmation from the actual race organizers.

Tip: If you book through them, always check the “Official Entry List” on the specific marathon’s website a few weeks later to ensure your name has been transferred over.

Summary Table: Finishers vs. Others