World Marathon Rankings: The Fastest Marathons for Sub-3 Runners

The definitive global rankings of road marathons by sub-3-hour performance — updated annually, built for serious runners, and based on verified results.

Sub-3’s World Marathon Rankings provide a data-led guide to the fastest marathons on Earth. Whether you’re chasing a sub-3-hour milestone or planning your next PB attempt, the rankings focus on where serious runners actually run fast, cutting through the noise with verified results and transparent methodology. All races are assessed using a scoring system that rewards both the depth and quality of sub-3-hour performances.

🏆 2026 Rankings: The World’s Fastest Marathons

The Sub-3 World Marathon Rankings 2026 present the definitive global ranking of road marathons based on sub-3-hour performance across the full 2025 calendar year.

Each race is scored using Sub-3’s 45:45:10 model, weighting the proportion of sub-3 finishers, the absolute number of sub-3 performances, and the fastest winning time. All data has been manually collected and verified directly from official marathon results, with no scraping or automated estimates.

Rather than rewarding prestige or field size alone, the rankings focus on where fast amateur running is actually happening — highlighting the courses, conditions and competitive environments that consistently support sub-3 performance.

→ View the 2026 World Marathon Rankings

📅 Fastest Marathons by Month

Looking to race at a specific time of year? We analyse the fastest marathons held in every month — updated annually. Ideal for those building a race calendar around climate, travel, or training cycles:

🔍 Explore Marathon Profiles

Each marathon in our rankings has its own dedicated page, featuring course notes, historical data, and sub-3 insights. We’re building the most comprehensive profile library of serious marathons worldwide.

→ Browse All Marathon Profiles

📊 How the Rankings Work

We rank marathons based on three core metrics:

% of sub-3 finishers
Absolute number of sub-3 finishers
Fastest winning time

These are combined in a 45:45:10 weighting formula to produce each race’s final score.

→ Read More About Our Methodology

💬 Don’t See Your Race?

If your favourite marathon isn’t listed yet — or you’re an organiser who wants to be included — get in touch. We’re adding new races regularly and welcome verified results from around the world. To be eligible, races must be road marathons with at least 1,000 finishers and publicly available results data.