Preferred AM workout

Run in the morning, before the heat and humidity get outta control. I can handle it on the bike or in the water, just not running.

I far prefer an AM swim over anything else; it's a time saver. I brush my teeth and am ready to go; with run or bike there's more dressing, equipment to get ready, etc.    It's also logistically useful since my favorite pool is by work, so I save time driving there before rush hour.    I can actually get in a 30 min swim but only get up about 15 mins earlier.

Swim in the AM. Two reasons. 1. I like the AM coach better than PM at masters. 2. I struggle to put any sort of hard effort into a run or a bike in the AM, but after years of early morning swim practices, I can go from bed to hard 100s in no time.

I can do AM runs, as long as they are slow. AM bike workouts, not so much, unless it's a long/steady outside effort.

Love me some PM track practice and PM trainer rides, though!

I prefer a run or trainer ride in the morning. Getting myself up and making the drive to the pool early enough to miss the rush is almost impossible.

Morning trainer ride.  Roll out of bed and onto the bike.  I don't like running in the dark and swimming at 5am is just RUDE

I don't like to run early in the morning, I'm always much slower.  If the bike is on the trainer, I'm good with that in the morning.  If outdoors, probably prefer afternoon.

I'd always rather swim early.  After spending most of my teenage years in a pool, it just seems normal.

My normal week during the tri season is 4 runs, 2 bikes and 2 swims.

Besides the fact that I'm a 'morning person', it fits my schedule better to run early four days/week before heading to work.  I don't mind running in the dark and also like to run in the relative cool temps compared to running in the afternoon heat after work.

On the weekends I normally like to head off for a ride at first light .  My wife usually sleeps in, so I can get in 20-30 miles and be back before she's on her second cup of coffee.  I also feel safer riding in the mornings - too much traffic in the afternoons and too many distracted drivers.

Swimming works well for me after work.  The pool is on the way home and it's usually easy to get my own lane if I can get there between 5:00 - 5:30p.

I normally run on Mon, Tue, Thu & Fri mornings, but have temporarily shifted things around since I'm adding a weekly long run to prepare for the Sarasota Half Marathon.  I've moved my Fri run to Sat., which leaves Fri as a rest day ahead of my long run. 

Mark

In the winter, definitely an AM swim, then PM run.
I have a hard time running in the morning due to GI issues. Not an issue on race day since I generally get up 3-4 hours before go-time.

In the summer, when the lake is warm enough, I'll swim or run in the PM, and usually bike in the AM.

If I HAVE to workout in the morning, I always pick swimming first. Then the bike trainer second. 

Swimming is the easiest of the 3 for me, so getting up early to swim is the least amount of torture. In the summer, I get up in the morning to ride on the weekends. Otherwise I ride after work. But I have been known to get on the bike trainer before work (hardly ever happens though!). 

Seriously though, I only do morning workouts when I'm IM training, or riding on the weekends. Otherwise this gal workouts after work. 

Three days a week, I do AM swims (master's group)....two days a week, I do AM bikes.  I didn't run for about a year due to injury, and this is just the way my schedule worked out and I've kept it that way.  My swims and bikes are also generally longer than my runs (60-75 minutes versus 45ish minutes), so it's easier for me to get the long workout out of the way before work.

Haven't had any issues with maintaining intensity on the swims and bikes in the morning, and I love getting in a solid workout to start the day off right.

This.