OC Marathon training plan: course, start dates, and plan options
Costa Mesa, CAMay 2, 2027
The OC Marathon goes off at 5:30 a.m., before sunrise, and there is a hard rule attached to it: runners who have not reached mile 12 by 9 a.m. get diverted onto the shorter course. That is the honest framing of this race. It is a fast, mostly flat point-to-point run down the coast, but the roads have to reopen and the clock is part of the deal.
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You start in front of the VEA Newport Beach resort and finish at the OC Fair and Event Center in Costa Mesa, dropping about 122 feet net over the distance. In between you get ocean bluff views through Corona del Mar, the yacht clubs of Newport Harbor, a stretch of the Santa Ana River Trail, and a pass by South Coast Plaza and the Segerstrom Center for the Arts. The field reached about 3,563 marathon finishers in 2026, up from 1,429 in 2022.
220 days to race day
OC Marathon · May 2, 2027 · about 31 weeks out
Your plan starts with your race and works backward. Every week lands on a real calendar, with race day at the end.
When to start training for the OC Marathon 2027
Race day is May 2, 2027, which is 220 days from today. Counting back from that date, here is when each length of build starts.
- 30-week buildStart October 4, 2026
- 24-week buildStart November 15, 2026
- 18-week buildStart December 27, 2026
- 16-week buildStart January 10, 2027
- 12-week buildshortest Stride acceptsStart February 7, 2027
You have about 31 weeks until race day, so there is still room for a full build. Stride reads the runway you actually have and maps every week from today to May 2, 2027.
Answer a few questions, choose your plan, then create your account and subscribe to start training in Stride.
OC Marathon course facts
- Course
- Point to Point · Mostly Flat · Road/Pavement
- Elevation gain / loss
- 559 ft gain, 681 ft loss
- Highest / lowest point
- 254 ft / 9 ft
- Marathon finishers
- 3,563 in 2026 (large field)
- Boston qualifier
- Certified Boston qualifying course
- Finishers running a qualifying time
- 3.6% in 2026
- Typical race morning
- 57°F at the start, 87% humidity, overcast
- Race day high / low
- 70°F / 55°F on average
Let’s find the plan for you.
Your race, current mileage, longest run, marathon experience, and available days decide the best fit. Stride maps the plan you choose to race day at the OC Marathon.
- Stride Run-Walk FinisherThree sessions a week with planned walk breaks, cover the full distance before race day.
- Stride First MarathonThe classic four-day first-marathon build: easy running and one weekly long run, no speedwork.
- Stride First Marathon PlusA first-marathon build with a little more volume and weekly race-pace miles.
- Stride 6-Day FinisherFinish your first marathon on frequency: six easy-leaning runs a week, no monster long runs.
- Stride 5-Day Pace BuilderFive days a week with race-pace runs before your long runs, built for a mid-pack time goal.
- Stride 6-Day RhythmSix days a week with three quality sessions, steady fatigue that teaches you to finish strong.
- Stride Time-Based FoundationFive time-based runs a week, mostly easy, the injury-averse way to a strong finish.
- Stride Time-Based BuilderSix time-based runs a week at a strict 80% easy / 20% hard split, chase a time goal without breaking.
- Stride 3-Day Cross-TrainThree runs plus two cross-training days over 24 weeks, marathon fitness on a busy schedule.
- Stride 3-Day QualityExactly three hard runs plus two mandatory cross-training sessions, every workout counts.
- Stride 6-Day CumulativeThe six-day cumulative-fatigue build with quality from week two, for PR chasers with a base.
- Stride Threshold 55The serious BQ/PR build to 55 miles a week: threshold work, medium-long runs, and 20-milers.
- Stride Threshold 70The high-mileage BQ/PR build to 70 miles a week for veterans with a deep base.
- Stride 2-Quality FlexTwo fixed quality sessions a week, everything else flexible easy running, fits any schedule.
Answer a few questions, choose your plan, then create your account and subscribe to start training in Stride.
Choose your OC Marathon training window.
Compare 12, 16, 18, and 20 weeks counted back from race day. The 18-week option includes the complete four-day schedule.
The course: three hills on a net-downhill point to point
The OC Marathon is net downhill by about 122 feet, but three climbs interrupt it. The first comes between miles 6.5 and 7, rising from around 15 feet to 75 feet. The second hits at mile 11. The third is a 55-foot rise at mile 14.5, where the course crosses the 405 freeway overpass.
None of those are big climbs in absolute terms, which is exactly why runners mishandle them. On a course this flat, a 60-foot rise at mile 7 arrives while you are fresh and running above goal pace, and the mile 14.5 overpass arrives when you are neither. Take the first two on effort rather than pace, and treat the overpass as the point where the race actually begins.
How to train for the OC Marathon
Training for the OC Marathon is a pacing problem more than a strength problem. A mostly flat, net-downhill course punishes anyone who has only trained a single pace, because nothing in the terrain forces you to slow down early. You need goal pace to be automatic, and you need three short hills to leave it intact.
In practice: run long runs at goal pace on flat ground until the pace feels boring, then drop three short hill efforts into the middle of them so a rise at mile 7 does not spike your heart rate. Do a few sessions starting at 5:30 a.m. in the dark, fully fueled, because a pre-dawn start rearranges your whole morning routine. And run some easy miles on the flattest, most repetitive surface you can find, since unvarying terrain is its own kind of hard on tired legs.
Getting in
Registration is first-come through RunSignUp with no lottery and no qualifying standard, and prices step up as race day approaches. Two logistics matter more than the sign-up itself. A 5:30 a.m. gun means an alarm around 3:30 if you are staying inland, and a point-to-point layout means your start and your finish sit miles apart, so sort out parking and shuttles when you register rather than the week of the race.
Where does the OC Marathon get hard?
Mile 14.5, where the course climbs 55 feet over the 405 overpass, is where a flat-course pace plan usually starts to come apart.
What is the weather like at the OC Marathon?
Race morning at the OC Marathon is usually mild and damp: around 57 degrees at the 5:30 a.m. start, roughly 87 percent humidity, and overcast skies from the coastal marine layer, warming toward a high near 70. The humidity is the part to train for. Do long runs in humid conditions and start your fluid plan early, because the marine layer hides how much you are actually sweating.
Is the OC Marathon a good Boston qualifier?
OC is a certified Boston qualifier, but the qualifying share has been falling: about 3.6 percent of finishers ran qualifying times in 2026, down from 7.8 percent in 2022 while the field roughly doubled. That drop reflects who is showing up rather than the course getting harder. The profile itself is friendly to a fast time if you pace it properly.
Is the OC Marathon a good first marathon?
OC is a good first marathon with one caveat. The course is mostly flat, the coastline holds your attention, and there is a seven-hour limit with a pacer carrying balloons at a 16-minute mile. The caveat is the 9 a.m. checkpoint at mile 12. A first-timer walking long portions can miss it, so plan your first half honestly.
OC Marathon questions, answered.
Is the OC Marathon flat?
Mostly. The OC Marathon is net downhill by about 122 feet with a low point near sea level, but it includes three climbs: one between miles 6.5 and 7, one at mile 11, and a 55-foot rise at mile 14.5 crossing the 405 freeway overpass. None of them are long.
What is the time limit for the OC Marathon?
Seven hours, about a 16-minute mile, with a pacer carrying balloons holding exactly that pace. There is also an intermediate checkpoint: runners who have not reached mile 12 by 9 a.m. are moved onto the shorter course. Support vehicles at water stations pick up anyone who cannot continue.
Why does the OC Marathon start so early?
The marathon goes off at 5:30 a.m., before sunrise. The practical effect matters more than the reason: you run your first hour in the dark under the coastal marine layer, and the mile 12 checkpoint at 9 a.m. follows from it. Practice pre-dawn fueling and a dark-hours warmup before race day.
Is the OC Marathon a good Boston qualifier?
The course helps, the field average does not. About 3.6 percent of OC Marathon finishers ran Boston qualifying times in 2026, down from 7.8 percent in 2022 as the field roughly doubled. A net-downhill profile and cool coastal mornings suit a fast time if you are fit and pace it correctly.
Where does the OC Marathon get hard?
Mile 14.5, where the course climbs 55 feet over the 405 overpass, is where a flat-course pace plan usually starts to come apart.
What is the weather like at the OC Marathon?
Race morning at the OC Marathon is usually mild and damp: around 57 degrees at the 5:30 a.m. start, roughly 87 percent humidity, and overcast skies from the coastal marine layer, warming toward a high near 70. The humidity is the part to train for. Do long runs in humid conditions and start your fluid plan early, because the marine layer hides how much you are actually sweating.
Is the OC Marathon a good Boston qualifier?
OC is a certified Boston qualifier, but the qualifying share has been falling: about 3.6 percent of finishers ran qualifying times in 2026, down from 7.8 percent in 2022 while the field roughly doubled. That drop reflects who is showing up rather than the course getting harder. The profile itself is friendly to a fast time if you pace it properly.
Is the OC Marathon a good first marathon?
OC is a good first marathon with one caveat. The course is mostly flat, the coastline holds your attention, and there is a seven-hour limit with a pacer carrying balloons at a 16-minute mile. The caveat is the 9 a.m. checkpoint at mile 12. A first-timer walking long portions can miss it, so plan your first half honestly.
When should I start training for the OC Marathon 2027?
Race day is May 2, 2027. Counting back from that date, a 20-week build starts around December 13, 2026, a 16-week build around January 10, 2027, and a 12-week build around February 7, 2027. Already inside that window? Stride maps a plan from today to race day, whatever the runway.
How does Stride's OC Marathon plan work?
Download the app, pick the OC Marathon as your race, and answer a few questions about your recent running and your weekly schedule. Stride matches you to one of 14 marathon plans, maps every week from today to May 2, 2027, adjusts when life gets in the way, and puts you in a feed of runners training for the same race.
Choosing a training app?
A OC Marathon buildup is months of your life. See how Stride compares before you commit it to an app.
Find your plan.
Your race, current mileage, recent longest run, goal, and run days determine which plans rank first. Choose one and subscribe, then open every workout in Stride.