Michael Phelps’s documented training day, as the Baltimore Sun followed it in September 2003, started with a 6:20 AM alarm and ran on two pool sessions totaling about 7 miles, a large diner breakfast, a three-hour nap in a bedroom with foil on the windows, dinner and family time, and lights out at 11:30 PM.
Key takeaways
- On the day the Baltimore Sun trailed him in September 2003, the 18-year-old Phelps’s alarm went off at 6:20 AM and he was on the pool deck by 6:50 AM.
- He swam twice: about 5,000 yards from 7 AM and 7,400 yards from 3:45 PM, roughly 7 miles in all, by the Sun’s count.
- Between practices he ate a big breakfast and slept about three hours, in a bedroom whose windows were covered with tin foil to keep sunlight and heat out.
- The famous 12,000-calories-a-day figure is one Phelps disputes: in his autobiography No Limits he called it untrue and put his intake at maybe 8,000 to 10,000 calories, NBC Sports reported in 2020.
- Sleep data that Under Armour shared with Fortune showed he averaged 7 hours 36 minutes a night over the 373 nights before the Rio Olympics in 2016.
What does Michael Phelps’s daily routine look like?
Phelps’s documented routine is swim, eat, sleep, repeat: two practices a day, big meals after them and a long nap in between. The clearest record is a Baltimore Sun reporter who followed him from alarm to bedtime on 16 September 2003, while he trained with coach Bob Bowman at the North Baltimore Aquatic Club for the 2004 Athens Olympics and lived with his mother in Rodgers Forge, Maryland. The table follows that day; times the article doesn’t give are marked estimated.
| Time on My BodyClock | What is documented |
|---|---|
| 6:20 AM | Wake up Alarm sounds; a bowl of cereal, a fleece, out the door |
| 6:40 AM | Drive to the pool Leaves for Meadowbrook Aquatic and Fitness Center, 3.4 miles away |
| 6:50 AM | Stretch Stretching on the pool deck, joking with Bob Bowman |
| 7 AM | Morning practice Interval training, about 5,000 yards (2.8 miles) |
| 8:25 AM | Stationary bike 20 minutes on a bike instead of the team’s run, because of a knee condition that road work aggravates |
| 8:45 AM estimated |
Shower and change Not described; leaves for breakfast at 9:30 AM |
| 9:30 AM | Drive to breakfast Drives teammates to Pete’s Grille on Greenmount Avenue |
| 9:50 AM | Breakfast A large diner breakfast of egg sandwiches, French toast, an omelet, grits and pancakes |
| 11 AM estimated |
Drive home Back home by 11:15 AM |
| 11:15 AM | Nap “See you in three hours,” then bed, in a room with foiled windows |
| 2:25 PM | Second wake-up Awake from the nap; another bowl of cereal with his cat in his lap |
| 2:45 PM estimated |
Family at home His sister Whitney drops by |
| 3:30 PM estimated |
Back to the pool Return to Meadowbrook |
| 3:45 PM | Afternoon practice Breaststroke-focused session, 7,400 yards (4.2 miles) |
| 5:55 PM | Plan for Athens Highlights his events on the Athens competition schedule |
| 6:45 PM | Dinner Chinese carry-out with teammates and his mother |
| 7:45 PM estimated |
Home Back home with his mother by 8 PM |
| 8:45 PM | Drive to his sister’s Leaves for his sister Hillary’s apartment in Laurel |
| 9:30 PM estimated |
Evening with his sisters Catching up with his sisters and playing PlayStation |
| 11:30 PM | Sleep Retires for the day (no practice the next morning) |
What time did Michael Phelps wake up?
On the documented 2003 training day his alarm sounded at 6:20 AM, and he was stretching on the pool deck half an hour later. That early start was the job, not his preference. Bowman, who told the Baltimore Sun in 2008 that he is usually up on the early side of 5 AM, described the gap plainly: “Michael is a night owl; I am an early-morning person. It drives him crazy.”
A Fox45 Baltimore crew that followed him in the same Athens build-up found a similar clock: he pulled into the Meadowbrook parking lot at 6:27 AM. “Getting in the water in the morning is the hardest part,” he told the station.
How much did Michael Phelps train each day?
About 7 miles of swimming on a two-practice day, plus dryland work. The Sun counted 5,000 yards in the morning and 7,400 in the afternoon, and noted that he had practiced twice a day an average of four times a week for five years. On the morning Fox45 filmed, he arrived at 6:27 AM, was out of the pool by 8:31 AM for about an hour of plyometric drills and strength training, and finished the morning workout at 9:28 AM; the afternoon session that day ran two hours and ended by 6 PM.
Did Michael Phelps really eat 12,000 calories a day?
Probably not, by his own account. Media reports during the 2008 Beijing Olympics put his intake at as many as 12,000 calories a day, as NPR noted at the time. Phelps has disputed it: “It’s just not true,” he wrote in his autobiography No Limits, giving his own estimate as “Maybe eight to ten thousand calories per day,” according to NBC Sports. In an NBC TV profile filmed before Beijing he said he had been told to eat between eight and ten thousand calories a day.
What is well documented is that he ate a lot to fuel the training. The Sun watched him order a large diner breakfast of egg sandwiches, French toast, an omelet, grits and pancakes; the diner’s owner estimated that, counting butter and syrup, it might have topped 4,500 calories. The reporter also noted that weight training and a more vigilant approach to nutrition were planned for after Athens.
A University of Michigan sports dietitian told NPR in 2008 that an athlete training at that level needs a very large intake to avoid losing muscle. None of this is a template: My BodyClock above shows wholesome meals in the same slots.
Why did Michael Phelps nap every afternoon?
The nap was recovery between two practices, and he took it seriously. After breakfast on the documented day he was home by 11:15 AM. “See you in three hours,” he said, and went to bed; he woke at 2:25 PM. Fox45 recorded the same rhythm in his words: “Go home, eat, nap, and get up and do it all again.”
He also made his room dark for it. The windows of his bedroom were covered with tin foil, which he said “Keeps sunlight and heat out,” a trick he said he learned from fellow swimmers at the 2000 Sydney Olympics. Training full time instead of taking college classes, he told the Sun: “I get more sleep now,” which he hoped would mean better practices.
How much did Michael Phelps sleep?
On the 2003 day, a three-hour nap, then bed at 11:30 PM, late because there was no practice the next morning. Later in his career the numbers were measured: sleep data Under Armour shared with Fortune showed he averaged 7 hours 36 minutes a night over the 373 nights before the 2016 Rio Olympics, and he aimed to stay close to that during the Games. His trainer Keenan Robinson told Fortune that tracking sleep helped the team set up the weekly training schedule, since it predicted which workouts he was ready for.
What can Michael Phelps’s routine teach your body clock?
Four habits carry over, even without a pool.
- Anchor the morning. A practice that starts at the same hour every day is a strong anchor for your body clock, even for a self-described night owl. See how to fix a sleep schedule with one anchor, and find out whether you lean Morning Glory or Moonflower with the Body Clock Type quiz.
- Pair hard work with real recovery. Phelps followed each block of training with food and rest. If you train, what a 2026 trial found about the best time to exercise helps you place it, and the student-athlete schedule guide shows how to fit training, class and sleep together.
- Make rest dark. His foiled windows did what blackout curtains do: keep daylight out. Light and dark are the strongest cues for the body clock, and the brain’s master clock sets melatonin production by the light the eyes receive, making more in the evening, according to the US National Institute of General Medical Sciences.
- Keep naps purposeful. A three-hour nap fit a day with 7 miles of swimming. Most days need far less; protect the night’s sleep first.
For a contrast in rhythm, compare Eliud Kipchoge’s daily routine: two runs, a shorter nap and bed by 9 PM.
Your day on My BodyClock
The day above on My BodyClock follows the training day the Baltimore Sun documented in September 2003: a 6:20 AM alarm, a short drive, morning practice and a stationary-bike session, breakfast with teammates, a three-hour nap in a dark room, a second practice from 3:45 PM, dinner, family time and sleep at 11:30 PM. Times the article gives are kept as written; the shower, drives and family blocks without a time are our estimates. The sun follows Rodgers Forge, Maryland, where he lived then, and the meals are shown as wholesome versions rather than the exact diner orders.
Build your own version in Owaves, the World’s First Wellness Planner, Powered by Your Body Clock: get it on the App Store or join the Android waitlist. Start with a steady wake time, one focused block of movement, a real meal after it and a dark, quiet place to rest.
FAQ
What time did Michael Phelps wake up for training?
On the day the Baltimore Sun followed him in September 2003, his alarm went off at 6:20 AM and he was on the pool deck by 6:50 AM. A Fox45 crew filming the same Athens build-up saw him arrive at the pool at 6:27 AM.
Did Michael Phelps really eat 12,000 calories a day?
He says no. In his autobiography No Limits he wrote that the figure is not true and estimated maybe 8,000 to 10,000 calories a day, as NBC Sports reported in 2020. He did eat very large meals to fuel several hours of daily training.
How long did Michael Phelps nap?
About three hours on the documented 2003 day: home by 11:15 AM, awake at 2:25 PM, in a bedroom with tin foil over the windows to keep sunlight and heat out.
How much did Michael Phelps sleep at night?
Sleep data Under Armour shared with Fortune showed an average of 7 hours 36 minutes a night over the 373 nights before the 2016 Rio Olympics. On the 2003 day the Sun documented, he went to bed at 11:30 PM after a three-hour nap.
Is Michael Phelps a morning person?
No, by his coach’s account. Bob Bowman told the Baltimore Sun in 2008 that Phelps is a night owl and that his coach’s early-morning habit drives him crazy, even though his training started before 7 AM for years.
Sources
- Baltimore Sun, “Feeding the dream”, September 24, 2003. https://develop.baltimoresun.com/2003/09/24/feeding-the-dream
- Brent Harris, “What does it take to be the GOAT? Here’s Michael Phelps before he won Olympic gold”, Fox45 Baltimore (WBFF), July 26, 2021 (story first aired 2003–2004). https://foxbaltimore.com/news/local/michael-phelps-olympic-training-goat
- Kevin Van Valkenburg, “Opposites attract”, Baltimore Sun, August 16, 2008. https://develop.baltimoresun.com/2008/08/16/opposites-attract-2
- OlympicTalk, “How many calories Michael Phelps consumed as a swimmer”, NBC Sports, May 5, 2020. https://www.nbcsports.com/olympics/news/michael-phelps-calories-swimming
- NPR, “Phelps’ Calorie Count Contributes To Medal Count” (transcript), August 16, 2008. https://www.npr.org/transcripts/93666256
- John Kell, “How Tracking Sleep and Diet Helped Michael Phelps in Rio”, Fortune, August 31, 2016. https://fortune.com/2016/08/31/under-armour-phelps-fitness/
- Team USA, “Michael Phelps” athlete bio (USA Swimming archive). https://archive.teamusa.com/usa-swimming/athletes/michael-phelps.html
- National Institute of General Medical Sciences (NIH), “Circadian Rhythms” fact sheet. https://nigms.nih.gov/education/fact-sheets/Pages/circadian-rhythms
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