The Triathlon & Ironman Training Thread 2026

I can’t believe we almost made it to March without starting a new thread for this year.

If you’re racing, post the name and date of your race, the training plan you’re following, plus anything else you want to share, such as any particular goals you’re targeting. We’ll have a monthly roll call to report our progress on the previous month’s training, including successes, failures, and lessons learned. In the past we’ve done separate threads for Ironman (half- and full-distance) and short-course races, but since we haven’t much activity on the short-course thread for a while, I think we can combine both this year.

Previous threads:

Athlete Race Date Distance
moonman 2XU Race 6 St Kilda March 22 Sprint
Billabong Kinetic Smithfield March 28 Sprint
cc51cam Ironman 70.3 Texas March 29 Half
Billabong Kinetic General Smallwood April 25 Olympic
DanF Wildflower May 2 Half
Billabong Ironman 70.3 Chattanooga May 17 Half
clprescott Ironman 70.3 Chattanooga May 17 Half
CyclingAndrew May 24 Half
giventotri Escape from Alcatraz June 7 Other
Billabong Kinetic Jamestown June 7 Olympic
stino77 Ironman Kärnten-Klagenfurt, Austria June 14 Full
giventotri Ironman 70.3 Coeur d’Alene June 21 Half
bretzky Ironman 70.3 Desaru Coast July 12 Half
timb34 Altriman July 12 Olympic
giventotri Ironman 70.3 Boise July 25 Half
giventotri Ironman 70.3 Washington Tri-Cities September 20 Half
Billabong Ironman Chattanooga September 27 Full
clprescott Ironman 70.3 Augusta September 27 Half
bretzky Ironman World Championship October 10 Full
GreenRyan88 Ironman Portugal-Cascais October 17 Full
clprescott Edisto Island Triathlon October 24 Half
mrtopher1980 Ironman Florida November 7 Full
My preliminary schedule is:

March 28 **Kinetic Smithfield

April 25 Kinetic General Smallwood Olympic

May 17 Ironman 70.3 Chattanooga

June 7 Kinetic Jamestown Olympic

Sep 27 Ironman Chattanooga

There are some other races that are tentative

**Based on the weather forecast for that weekend I will make the decision on March 25th. Previously this race was the first weekend of April, I am not sure why it was moved a week earlier. There have been times in the past number of years when the forecast was snow or low 40s and I am too much of a wimp to ride and run in that temperature, especially after a swim.

Nice, both Chatt races, go get that Lookout Challenge medal.

I started a new half-distance, high-volume triathlon plan on Tuesday, with the training approach set to “aggressive”. I’ve had a pretty good experience with the new AI system with a cycling-only plan, so I’m curious to see how well it’s gonna work with the tri plans—a couple of days in, and it seems that because it only adapts the cycling workouts and not the runs or the swims, it keeps making my bike workouts easier while the runs/swims stay the same. I’m experimenting with leaving RLGL on but turning off the automatic adaptations so I can decide them for myself; it’s just gonna require a little more self-coaching than a cycling-only plan, I guess. We’ll see how it goes.

As for races, I’m targeting Ironman 70.3 Coeur d’Alene, Boise, and Washington Tri-Cities like last year, with Escape from Alcatraz for funsies in June. I was tempted to sign up for Ironman California in October, but the timing doesn’t work out for me. I’m hoping the rumored full Ironman in Lake Havasu gets announced for next year, I really want to check off that full Ironman goal sometime.

How do you turn off automatic adaptations?

In https://www.trainerroad.com/app/profile/settings:

This is only specifically for yellow and red day adaptations. It still gives you the option to switch to an easier workout on those days, but makes it opt-in instead of opt-out.

ah, i don’t see that because i turned off Fatigue Detection. i thought you meant there was a way to turn off AI adaptations - reverting back to static plans of old. my bad.

Athlete Race Date Distance
Billabong Kinetic Smithfield March 28 Sprint
Billabong Kinetic General Smallwood April 25 Olympic
Billabong Ironman 70.3 Chattanooga May 17 Half
giventotri Escape from Alcatraz June 7 Other
Billabong Kinetic Jamestown June 7 Olympic
Stino77 Ironman Klagenfurt Austria June 14 Full
giventotri Ironman 70.3 Coeur d’Alene June 21 Half
giventotri Ironman 70.3 Boise July 25 Half
giventotri Ironman 70.3 Washington Tri-Cities September 20 Half
Billabong Ironman Chattanooga September 27 Full
mrtopher1980 Ironman Florida November 7 Full

Added my Full IM.
First 2 months done. Consistency still on plan. Better training then in 2025 and still no injuries.
Swim, well, feeling I am improving but still not much faster. CSS pace is 2:00/100m, but ok. I keep trying to do the work. Bike is going as usual ok, that is no limiter.
Weekly long run now between 2h-2h20. Also pretty ok doing this. Maybe need little more run consistency but overall this also goes on plan.

Jan '26 9h2 27km 32h7 1020km 13h10 143km
Feb '26 8h34 27km 29h14 871km 13h59 152km

my handful of sprint tri’s each year suddenly feels a bit inadequate :joy:

Can I ask how? And roughly how much?

They all count!

Interesting, thanks for sharing. :slight_smile:

For a minute I thought it was the same person doing them all!

OK @giventotri as I’m in Australia we are getting to the end of our season. I have one race left: Sunday 22nd March, 2XU Race 6 St Kilda, it’s a sprint (although with a 27k bike leg) and that’ll be me done for tri’s until the season starts up again at the end of the year.

I’m notionally on the TR Sprint Tri plan but my focus this training block is on my running so I’m sometimes changing the rides to fit.

I’m doing 5 runs a week, the two TR rides and one OW swim. The two rides are a VO2 session on Monday and a threshold on Thursday. I am usually keeping the VO2 as is but scale the threshold back to something closer to sweet spot or even tempo. It comes between an intervals run on Weds and a threshold run on Fri, and I’m prioritising protecting the quality of those run sessions.

Here’s a report from my last race: 2XU Race 4 Sandringham, a sprint tri here in Melbourne.

There were two curveballs with this tri:

  • T1 is a nightmare. Between coming out of the water and getting onto your bike you run nearly 1km. The sand is soft and there is a steep ramp up from the beach. It favours runners (not me sadly..)
  • The forecast changed about 24-48h out and suddenly it was going to be a hot day in full sun with a strong northerly wind. I made adjustments for this and perhaps gained over rivals who didn’t.

Swim

During my swim warm up I could see that the wind was across the course and I could feel the current too, so I decided I would bear off upwind.

There were two people registered to race in my age cat who I knew were faster swimmers than me, so I planned to stay on their feet as long as I could without blowing up.

When the gun went I found two swimmers in front of me and latched onto the second one. But he was going really slowly and I had to pass him. By that point the first one was out of reach unfortunately. (It turned out the 2nd fast swimmer DNS.)

The chop meant it was tricky to sight. I headed upwind but probably went too far because I was almost mixing with the swimmers heading back in on the return leg of the course. I was swimming in no man’s land. The lead swimmer was miles ahead and there weren’t really any others that close to me.

Around the two turning buoys and heading back in, I again beared upwind. This meant I could see most of the other swimmers as I was breathing to my right. I couldn’t see any from my age cat. I had a horrible feeling that I had botched the swim and everyone swimming in a straight line was long gone.

My worries were needless however. Running into transition I couldn’t see anyone else from my age cat ahead of me and I had indeed secured a solid 2nd place on the swim.

Bike

T1 was uneventful, if painful and I got down on the bike and away nicely. I was very aware that I needed to protect my legs as I’d be running in the heat later. I rationed my power, trying to ease off when it wouldn’t cost me much speed (e.g. going downhill, downwind). It meant I had a lower NP than usual but the speed was good.

One person came past me in the 2nd half and I recognised him as a pro in my age cat. Solid rider and a great runner (16 min 5k). I tried using him as a pacer but I had no chance of staying with him.

The fun thing with these tri’s is that the roads are closed and with the age cats going off only 2.5 mins apart, you end up with cyclists everywhere. I must have passed about 200 other people on the bike leg, which was a good chance to get a short draft on the return back up into the wind.

Run

When I got off the bike into T2 I realised how hot it was (turns out it was already 28C by now). Luckily I had a water bottle in transition ready to soak myself with. I gave my head and body a big squirt and set off.

Running is never my best leg but the water helped keep me cool. I saw plenty of others suffering. I didn’t bother trying to drink at any of the km water stations, but got them to chuck the water over me instead (which they seemed to enjoy!). This helped. I also went out deliberately conservative. I think everyone was running 10-20s/km slower than usual. Around halfway I started increasing the pace and I enjoyed a stronger than usual finish. I passed several people who had passed me in the first km and then faded in the heat.

One person from my age cat came past me on the run so I ended up with a 4th which I was pretty happy with.

Im in for Ironman 70.3 Texas on the 29th March. Been following the low volume Half Distance plan. Ready for the taper now :slight_smile:

Good to see this thread for the year. I’ve committed to 0 tris as of now but eyeing HIM Victoria, CDA, and/ or Tri Cities because of location. Focused currently on dropping weight, filled out like a balloon after my marathon in late 2025 and fell off the training wagon through the holidays. Had a month of good cycling building into the end of feb until i got sick for 3 weeks. Working on a pretty rudimentary run volume build and lots of z2 cycling. Just keeping intensity extremely low until about mid April where i’ll likely get back on a real build plan into an event.

Completed in 5 hours and 44 seconds. So Close the target of Sub 5 but very happy all the same

This thread was conveniently right at the top. Congrats @cc51cam on a great race.

I’m starting to register for events. Curious how those of you that have more experience would judge my plan. I have registered and anchored my planning around a late November full Marathon. Is racing a 70.3 55 days prior a terrible idea?

I’ve had three distinct ‘im feeling very fit’ moments in my last few years. Those were when i was 1) following a full marathon build exclusively, 2) training for my first tri (oly) and had relatively consistent volume across all 3 disciplines, 3) training exclusively for a 200+ mile road ride.

The key with each of those was I was focused on that event, and not trying to stack various activities within one another.

Amazing effort - well done!