How do I register for the Santa Rosa Marathon?

Registration is open to all runners through the EnMotive platform. The marathon distance has sold out for 2026, so check the race website for any openings or to register for the half-marathon and other distances.

Is the Santa Rosa Marathon a Boston qualifier?

Yes, it is a Boston qualifier. Roughly 15 to 16 percent of finishers have earned a BQ, which is a solid rate for a regional race.

What is the course like? Is it hilly?

The course is very flat. It is an out-and-back with just over 400 feet of total elevation gain, a highest point under 175 feet, and a net change of essentially zero. There are no significant climbs or descents to manage.

What should I expect from the weather on race day?

Race day in late August typically starts in the low 50s and climbs into the low 80s by midday. The first half tends to feel comfortable, but heat builds through the second half, so plan accordingly and hydrate early.

Is the course USATF certified?

Yes, the Santa Rosa Marathon course is USATF certified.

How large is the field?

Recent editions have seen around 1,300 finishers in the marathon, making it a mid-size regional race with a manageable feel on course.

Sun, Aug 23 · 2026Santa Rosa, CASince 2008

Santa Rosa Marathon

Santa Rosa runs a nearly flat out-and-back course through Sonoma County wine country in late August, delivering a legitimate shot at a qualifying time for runners who can handle the summer heat.

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SANTA ROSA · US

Santa Rosa

SUN, AUG 23

2026

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Race Overview

EST. 2008

Santa Rosa is a low-drama course in the best possible way. It starts and finishes at Old Courthouse Square in downtown Santa Rosa and heads out through flat Sonoma County roads before turning around and coming home. There are no real hills to manage. The course is almost perfectly symmetrical, so you know exactly what you are getting on the way back. If your goal is a qualifying time, this course will not get in your way.

The catch is the calendar. Late August in Northern California means warm mornings that can climb quickly, and the back half of the race often gets real heat. Hydrate from mile one and be honest with yourself about your goal pace in the first 10k. The race fills up, so check the website early if you are targeting the marathon distance specifically. Registration is straightforward when spots are open, which makes this one of the more accessible PR attempts in the region. If you are chasing a time and can handle the heat, Santa Rosa is worth the trip.

Field size

~1.3k

1,349 finishers

BQ rate

16%

Above national average

Time limit

6:00

Tight cutoff

Entry

Open

First-come registration

Course records

Men

2:26:26

Evan Franco

2025

Women

2:52:01

Dakota Vincent

2025

The Course

416 ft total gain

Total ascent

↑416 ft

Total descent

↓417 ft

Net elevation

↓1 ft

Highest point

174 ft

Lowest point

69 ft

Course shape

Out and back

Same route, both directions

With only 416 feet of total gain and a net elevation change of essentially zero, this out-and-back course sits between 69 and 174 feet above sea level the entire way. The terrain is genuinely flat by marathon standards. Pacing implications are straightforward: no meaningful climbs or descents to plan around, which means your legs stay consistent but there is nowhere to make up time lost early. The symmetrical out-and-back layout means the second half mirrors the first, so conditions and effort feel familiar on the return. Wind can become a factor on exposed stretches, and the mid-August date means heat tends to matter more than elevation on race day.

DIFFICULTYROLLINGPR-FRIENDLYMODERATE

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Race-Day Weather

10-year median

Low

53°F

High

82°F

30°MARATHON-IDEAL 45–60°80°

What to expect

Late August means a cool morning that does not stay cool for long. You will likely start in the low-to-mid 50s, which feels comfortable, but by the time you are in the back half of the race the temperature can push into the low 80s. That swing is the thing to plan around. The second half of this race often becomes a heat-management effort as much as a pacing one. Start conservative, hydrate early, and do not let the pleasant morning lull you into banking a pace you cannot hold when it warms up.