Who’s behind this review? Buena Vida is a running app made by David Cole, a Seattle runner & triathlete who led design and research for Amazon’s Halo fitness band. Every plan here, including Buena Vida’s, is scored on the same 30 measures, each tied to published research. AI does the first scoring and draft, then every claim is checked against its studies. No plan author pays to be reviewed, and we run no ads. See a mistake? Email David at corrections@buenavida.run · How we score →
Health and fitness advice comes at you from every direction. One coach says run slower, another says run more, a third says it all comes down to what you eat, and a forum thread disagrees with all three. Then whatever you pick has to fit around work, family, and sleep. I built Buena Vida to cut down that sorting: less to learn, less time spent planning, and less effort to turn a good intention into a habit that sticks.
Pace is one of the few parts of running that's pure math, so it's a good place to start.
The short answer: a 4-hour marathon is 9:09 per mile (5:41 per km). A 5-hour marathon is 11:27 per mile (7:07 per km). Find your goal in the chart below and aim to run that pace from the first mile to the last.
The chart is the easy part, though. Holding a pace for 26.2 miles takes training built for it, food that fuels the weeks of training, and a record of your runs that shows which row is realistic for you. Those come right after the chart.
Marathon pace chart from 3:00 to 6:00
Every row is even pace, the same speed the whole way. The 5K, 10K, and half columns show what the race clock should read at those points if you're right on pace. Each goal links to a training plan built for it.
| Finish | Per mile | Per km | 5K | 10K | Half | Plan |
|---|---|---|---|---|---|---|
| 3:00 | 6:52 | 4:16 | 21:20 | 42:40 | 1:30:00 | Sub-3:00 |
| 3:10 | 7:15 | 4:30 | 22:31 | 45:02 | 1:35:00 | Sub-3:10 |
| 3:15 | 7:26 | 4:37 | 23:06 | 46:13 | 1:37:30 | Sub-3:15 |
| 3:20 | 7:38 | 4:44 | 23:42 | 47:24 | 1:40:00 | Sub-3:20 |
| 3:30 | 8:01 | 4:59 | 24:53 | 49:46 | 1:45:00 | Sub-3:30 |
| 3:40 | 8:23 | 5:13 | 26:04 | 52:08 | 1:50:00 | Sub-3:40 |
| 3:45 | 8:35 | 5:20 | 26:40 | 53:19 | 1:52:30 | Sub-3:45 |
| 3:50 | 8:46 | 5:27 | 27:15 | 54:31 | 1:55:00 | Sub-3:50 |
| 4:00 | 9:09 | 5:41 | 28:26 | 56:53 | 2:00:00 | Sub-4:00 |
| 4:10 | 9:32 | 5:55 | 29:37 | 59:15 | 2:05:00 | Sub-4:10 |
| 4:15 | 9:44 | 6:03 | 30:13 | 1:00:26 | 2:07:30 | Break 4:15 |
| 4:20 | 9:55 | 6:10 | 30:49 | 1:01:37 | 2:10:00 | Sub-4:20 |
| 4:30 | 10:18 | 6:24 | 32:00 | 1:03:59 | 2:15:00 | Sub-4:30 |
| 4:40 | 10:41 | 6:38 | 33:11 | 1:06:22 | 2:20:00 | Sub-4:40 |
| 4:45 | 10:52 | 6:45 | 33:46 | 1:07:33 | 2:22:30 | Break 4:45 |
| 5:00 | 11:27 | 7:07 | 35:33 | 1:11:06 | 2:30:00 | Sub-5:00 |
| 5:15 | 12:01 | 7:28 | 37:20 | 1:14:39 | 2:37:30 | First marathon |
| 5:30 | 12:35 | 7:49 | 39:06 | 1:18:12 | 2:45:00 | First marathon |
| 5:45 | 13:10 | 8:11 | 40:53 | 1:21:46 | 2:52:30 | First marathon |
| 6:00 | 13:44 | 8:32 | 42:40 | 1:25:19 | 3:00:00 | First marathon |
Marathon = 26.2188 miles (42.195 km). Times rounded to the nearest second. Past 5:00 there is no goal-time plan, so those rows link to a first-marathon plan.
Two things to know before you write these on your wrist. First, the half column is your split at halfway, not the half-marathon race time that predicts it. A 1:50 half marathon doesn't mean a 3:40 marathon (more on that below).
Second, your watch will probably say you ran a bit more than 26.2. Courses are measured along the shortest possible route, cutting every corner, and most runners don't run that exact line. If you want the race clock, not your watch, to hit your goal, aim a few seconds a mile quicker than the chart.
For scale, Kelvin Kiptum's world-record 2:00:35 in Chicago in 2023 averaged 4:36 a mile. Every row on this chart is a marathon, and every one of them is worth being proud of.
Should you run even splits or bank time early?
Eliud Kipchoge, a two-time Olympic marathon champion, went out too fast in Berlin in 2022. He reached halfway in 59:51, quicker than his team had planned, and his second half was almost a minute and a half slower than his first. He still won, in a world record of 2:01:09, but he knew what the fast start had cost. "We went too fast," he said afterward. "Actually, it takes energy from the muscles." A year later in Chicago, Kelvin Kiptum went through halfway in 1:00:48, a little behind record pace, then ran the second half faster and broke Kipchoge's record by 34 seconds.
"Banking time" feels smart at mile 3 and gets expensive at mile 20. Barry Smyth, a computer science professor at University College Dublin, studies the race data of everyday marathoners. In Chicago, he found, half the runners who hit the wall had run their first 5K as the fastest part of their race. "Running as even a pace as possible is the best way of running your personal best," he said, with the fair caveat that race data shows a pattern, not proof. Even pacing is also a skill you get better at: runners with more racing experience tend to pace their marathons more evenly.
So pick one row and run it. On race morning, rested and excited, chart pace will feel too easy for the first few miles. That's the point. If you're going to miss, miss a little slow over the first 5K, never fast. On a hot day or a hilly course, run by effort and let the pace slip; the chart assumes flat roads and cool air.
The best place to learn the pace is in training. Good marathon plans put miles at goal pace inside your long runs, so by race day it feels familiar, and your tracked splits show you whether you're holding it or drifting.
How to pick a realistic marathon goal time
Andrew Vickers, "a competitive runner and statistician at Memorial Sloan Kettering Cancer Center," as Slate described him, surveyed more than 2,300 recreational runners about their races with his colleague Emily Vertosick. The classic prediction formula, they found, worked well for races up to a half marathon but "dramatically underestimated marathon time, giving times at least 10 min too fast for half of runners." "No wonder so many runners blow up and limp to the finish," Vickers said.
The fix is simple. Take a half marathon you've run in the last couple of months and multiply it by about 2.19, the starting point from their data. A 1:50 half points to about a 4:01 marathon, not the 3:49 the old formula gives. A 2:00 half points to about 4:23. Then find the nearest row in the chart.
Your weekly miles move the number, too. "You might run a quick 5K, but if you don't put in the miles, your marathon is going to be on the slow side," Vickers said. A recent 10K works as a rough first guess. Treat it as a draft, and let your training confirm it.
That's the real test. Your training runs can give a decent estimate of your race time, and it's an estimate that gets better as the weeks go by. By the middle of your plan, the goal-pace miles in your long runs should feel steady, not desperate. If they feel desperate, move down a row. Finishing strong at 4:30 is a much better day than fading to 4:45 after starting at 4:15 pace.
Running your first marathon? Pick a row that feels a little conservative, or skip the goal time entirely and run to finish. The marathon plans page has first-marathon plans built around exactly that.
What to eat while you train for a goal pace
Sara Hall ran 2:20:32 at The Marathon Project in December 2020, at the time the second-fastest marathon by an American woman, and she has raced at a high level for well over a decade. Her top nutrition goal, she told Just Women's Sports, is eating enough to get through each training session. "You need not only to fuel well to finish that effort, but you also need to fuel enough to recover quickly," she said.
That's the part of marathon food most runners skip. Your plan grows week by week, and eating enough to match it is what lets your body turn those miles into fitness. Match the food to the day: more carbs the day before and the day of a long run or a goal-pace workout, and normal meals on rest days, not starvation days. After the big sessions, eat soon, with carbs to refill and protein to repair. Runners need more of both than people who don't train, so put some protein in every meal.
When the training outgrows the food, it shows up quietly: legs that never feel fresh, goal-pace miles that get harder instead of easier, paces that stall, more colds, bad sleep, and a shorter temper. The International Olympic Committee's 2023 consensus on underfueling names each of these, from a weaker training response and slower recovery to lower immunity, poor sleep, and irritability. Weeks of low energy also undermine your bones, raising the risk of a stress fracture. If your chart pace keeps slipping, check your plate before you add more miles.
Trying to lose weight while you train? Take a modest cut from the day's food overall, never by shorting your long-run days. Big deficits raise the risk of getting sick or hurt, and keeping enough carbs around your long run keeps the session your goal depends on strong.
Which training plan fits your goal time?
A pace chart tells you what to run on race day. A plan gets you there. A good one grows your long run a little at a time, puts goal-pace miles into your weeks so the pace stops feeling new, gives you easier weeks to absorb the work, and lightens the load at the end so you race fresh. The long run matters most of all: marathoners whose long runs reach further tend to finish faster.
There are lots of options. Runner's World has a Break plan for every 15 minutes from 3:00 to 5:00, and I've reviewed each one (the 4:15 and 4:45 plans are linked in the chart). Run to the Finish has a free 4-hour plan, linked below with my review. Buena Vida's goal-time plans run from sub-2:50 to sub-5, over 16 to 20 weeks, with 3 to 6 days a week depending on the goal, and those are the rest of the links in the chart.
Every plan here, mine and theirs, is scored on the same 30 measures, each tied to published research, so you can compare them side by side and pick the one that fits your week.
How Buena Vida sets your paces from your runs
Jack Daniels won Olympic medals in the modern pentathlon before he became a running coach, and his pace system rests on one rule. "You must train at the level of your current fitness, not your goal fitness," the guide to his VDOT system puts it. Train at the pace you hope to run and every workout is a little too hard. Train at the pace you can run now and you improve, safely, toward the goal.
A printed plan knows your goal time, not your runs. Training that adjusts to the runner works at least as well as a one-size-fits-all plan, and fewer people get stuck.
Buena Vida starts from what you actually run. Tell it your race, your date, how much you run now, and which days you have, and it recommends a plan, sets food targets for your goal, and shows you the first week before your free trial starts.
How the pieces connect
- Your runs set your paces. As you log runs, the app learns your paces and estimates each workout from them, so "easy" means easy for you.
- Every run is recorded. GPS, pace, splits, and heart rate from your iPhone or Apple Watch, with voice coaching through each workout. Your splits are there afterward to check against the chart.
- Your long run sets the day's food. Each run raises that day's calorie and macro targets, so long-run days get more carbs and rest days ease back. Losing weight? Your runs still count, so your long runs stay fueled.
- Your plan moves when life does. Shift a workout in the app or in your phone's calendar, and the two stay in sync. Each plan tells you what to do when you miss a day.
- Your shoes count their own miles. Each run adds to the pair you wore, and the app tells you when they're near the end of their life, so you don't find out at mile 18 on race day.
- A note every Monday explains what the week is for.
Prefer a free plan? Run to the Finish's 4-hour plan is free, and my review says what it does well and what it leaves out.
Free alternativeRunning your chart on race day
Smyth found one more thing in the race data. "I found that something like five times more runners ran even splits when they were running with or near a pacing group," he told World Athletics. If your race has pacers, find the sign that matches your row and settle in behind it.
Take your first gel before you feel you need it. Check your 5K and 10K splits against the chart, and if you're ahead, ease off, because those seconds come back with interest later. Past halfway, the chart becomes a guide, not a judge. If you have something left at mile 20, that's the time to use it.
You trained for this row. Go run it.
Get more out of your running with Buena Vida
Buena Vida was built by a runner to bring the whole job of training into one place: a plan that fits your schedule and your fitness, coaching on every run, and food targets that keep up with the work you do. Members get personal training & nutrition plans, plus full access to the catalog of pre-written plans for every running goal.
In studies, runners on training that adjusted to them did at least as well as runners on fixed plans, and fewer got stuck.
Try it FREE for 7 days. After that, it's $99.99 a year or $14.99 a month, and you can cancel anytime.
Frequently asked questions
- What pace is a 4-hour marathon?
- 9:09 per mile, or 5:41 per km, at even pace. You'd reach halfway in 2:00:00.
- What pace do I need for a sub-5 marathon?
- Faster than 11:27 per mile (7:07 per km), which puts you through halfway in under 2:30:00.
- What pace is a 3:30 marathon?
- 8:01 per mile, or 4:59 per km. Halfway comes at 1:45:00.
- How do I calculate my marathon pace?
- Divide your goal time by 26.2188 miles (or 42.195 km). For a 4:30 goal, 270 minutes divided by 26.2188 is 10:18 per mile. The chart above does it for every goal from 3:00 to 6:00.
- How do I predict my marathon time from my half marathon?
- Multiply a recent half-marathon time by about 2.19. A 1:50 half points to about a 4:01 marathon. Weekly miles matter too: on low mileage, expect a slower marathon than the half suggests.
- Should I run negative splits in a marathon?
- Aim for even. A slightly slow first 5K is safe, but a fast one often costs more time later than it saved.
- How many gels do I need for a marathon?
- It depends on your finish time and your gel. Guidelines go up to about 60 grams of carbohydrate an hour for 2 to 3 hours of running. Check the label, and practice the plan on your long runs.
- Why does my watch say the marathon was longer than 26.2 miles?
- Courses are measured along the shortest possible route, and most runners don't run that exact line. A watch reading a little long is normal.
Research notes
- Tune-up races: untested, may help pacing
- Your training data can predict a race time
- Fuel your training or the gains stall
- Healthy eating fits a wide macro range
- Bone needs impact and fuel, not just miles
- Lose weight slowly to keep muscle
- Keep carbs high enough to fuel hard days while cutting
- A real taper sharpens you for race day
- Longer long runs go with faster marathons
- Individualized plans beat one-size-fits-all