Mesa vs Valencia Marathon — Fast US Downhill vs World's Fastest Flat
Mesa Marathon (Feb, ~1,000 ft net downhill, Arizona) vs Valencia Marathon (Dec, dead-flat, Spain). Two of the world's fastest open-entry courses — which is right for your PR?
Quick Comparison
| Feature | 2027 Mesa Marathon - Feb 13 | 2026 Valencia Marathon - Dec 6 |
|---|---|---|
| Country/Region | USA | Spain |
| Month | February | December |
| Avg Temperature | 7-18°C | 8-15°C |
| Course Type | Net Downhill, Point-to-Point | Flat Loop |
| Elevation | ~305m net loss (~1,000 ft drop) | ~15m |
| Field Size | 5,000 | 35,000 |
| Entry | Open Entry (FCFS) | Open Entry (FCFS) |
| World Major | No | No |
| BQ Course | Yes | Yes |
| Crowd Support | Modest | Excellent |
Detailed Comparison
Mesa Marathon and Valencia Marathon are arguably the two fastest open-entry marathons on Earth — both lottery-free, both BQ-friendly, both producing extraordinary numbers of personal bests every year. The choice between them is essentially the choice between two different paths to a fast finish: Mesa's ~1,000 ft (~305 m) of helpful net downhill through the Sonoran Desert, or Valencia's pancake-flat 15 m profile through wide Spanish boulevards with elite pacing and 35,000 runners around you.
Valencia carries the stronger statistical case for raw speed at the elite end — it produced 5,000+ sub-3:00 finishers each year from 2023-2025, the only marathon to do so three years in a row. Its flat profile, cool 8-12 °C December weather, and deep pacing groups (sub-3, 3:00, 3:10, 3:15, 3:30, 3:45, 4:00) create the most consistent fast-time environment in the sport. Mesa's downhill provides a different kind of help — useful for mid-pack BQ-chasers (~15.6 % qualified in 2026) and runners who prefer point-to-point variety, but it lacks Valencia's elite-pacer ecosystem.
For travel, Valencia is a major European destination with direct flights from most large cities, a famous post-race paella culture, and December timing that pairs naturally with a year-end goal race. Mesa requires a US trip and is geared toward American-calendar BQ attempts targeting April's Boston window. Both reward training; choose Valencia for the deep elite atmosphere and pacing support, Mesa for the desert weather and downhill assist. Use our Pace Calculator to set target splits for each.
Explore Each Marathon
2027 Mesa Marathon - Feb 13
Live countdown, race info, and training tools.
View Countdown →2026 Valencia Marathon - Dec 6
Live countdown, race info, and training tools.
View Countdown →Frequently Asked Questions
Which is faster, Mesa or Valencia?
For elite runners and serious sub-3 chasers, Valencia is the fastest — its flat profile, deep pacing groups, and 35,000-runner peloton create the most efficient sub-elite finishing environment in the world. For mid-pack BQ-chasers, Mesa's net downhill can be worth 3-7 minutes versus a flat course at 3:30 pace, but you lose Valencia's pacing depth and crowd-pull effect.
Which has better entry odds?
Both are open-registration first-come-first-served, no lottery. Valencia sells out earlier (typically 6-8 months pre-race) due to global demand. Mesa typically has entries available closer to race date. Neither requires a qualifying time or charity bib.
Does Mesa's downhill disqualify the BQ time?
No. The BAA's 2027 net-downhill +5:00 penalty applies at 1,500 ft (457 m) net loss. Mesa is ~1,000 ft / ~305 m — under the threshold. Valencia is flat (~15 m), no penalty consideration at all.
What's the weather difference?
Valencia: cool Mediterranean December (~8-15 °C), minimal wind, dry, sea-level humidity ~60 %. Mesa: dry Sonoran desert February (~7-18 °C, humidity ~30 %), minimal wind. Mesa's start is slightly warmer; Valencia's finish is slightly cooler. Both are top-decile marathon weather globally.
Can a non-US runner BQ at Mesa for Boston?
Yes — Mesa's USATF certification and net downhill below the BAA threshold make any BQ time fully valid for international entrants. The only logistical hurdles are US visa/ESTA and the trip to Phoenix. Many UK / EU / JP / CN runners use Mesa specifically as their BQ-attempt race.
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