▲ 456 r/IronmanTriathlon
Vincent Luis wins Ironman Hawaii on debut
High drama with Ditlev blowing, KB’s charge stalling, and Iden getting within about 40 seconds with 3km to go
u/boxosaurus — 5 days ago
r/IronmanTriathlon
▲ 376 r/IronmanTriathlon
Taylor Knibb wins her first Ironman World Championships
The race looked over with Solvig almost 2 minutes up with 2km to go. Then the collapse, Knibb makes the pass for the win. What a race.
u/boxosaurus — 5 days ago
I measured 14 pro bike positions from Kona race photos. The trend is hands up, not backs down
I'm a triathlete and I build a technique-analysis app (disclosure below). The day after Kona I ran fourteen pro bike positions from race photos through a pose model and measured four upper-body angles. The median:
| Angle | Median | Middle half | Range |
|---|---|---|---|
| Torso, from horizontal | 20° | 17–24° | 12–32° |
| Shoulder (torso to upper arm) | 85° | 77–88° | 71–97° |
| Elbow | 80° | 76–89° | 62–107° |
| Forearm tilt above horizontal | 25° | 21–26° | 10–31° |
What stood out:
- **Hands up.** 7/14 tilted forearms more than 25°, 2/14 under 15°. UCI raised the armrest tilt limit from 15° to 30° in 2023. Maddocks & Walker (2025, Sports Engineering — CFD validated in a tunnel, one pro): high hands alone ~3% less drag area, with narrow elbows 7.7–11.2%.
- **The elbow pays for it.** Elbow and forearm tilt moved together more than any other pair (r = −0.76). Four riders were under a 75° elbow floor that was written for flat forearms.
- **The torso isn't that low.** Median 20°. Fintelman (2015, n=19): 24°→16° saves ~5% frontal area but max power drops as the torso goes down; a flat back was significantly worse than every other position. Six of fourteen were under 20° — pros, 4+ hours, years of conditioning.
- **Closed shoulders are fine.** 5/14 under 80°. Fitters aim for 90° but don't call less than 90° a fault.
Caveats, because they matter:
- One race, one day, one roadside viewpoint, 2D angles, roughly ±2–3°.
- Some athletes may be in more than one photo; each photo counts as one position. No names — I can't verify who's in every frame.
- **No knee/saddle numbers.** A race photo freezes the crank anywhere, and every photo was drive side. On my own bikes I measured that the chainring behind the ankle makes the knee at the bottom of the stroke read 8–10° low. So I left legs out.
- One shoulder point was misplaced by the model (on the top of the back) and I moved it by hand; it's marked on that figure.
u/AnnualBase8581 — 4 days ago
Kona Top 25 M & F Shoe Choice
Hi guys, I made this spreedsheet that has marathon times, finishing times, weight, height, and a ton of other statistics relating to what shoes the top 25 pro finishers had from each race this past weekend. I would love you feedback on the data, help filling in missing entries or any other general anecdotes about the information. Thanks.
Sheet Link: https://docs.google.com/spreadsheets/d/1cBO0PwjrQmhp_v8Zw8MpxEYTfGvOwnjK8C-w3o6KCyY/edit?usp=sharing
Some general trends:
Hoka was the most worn shoe at 11 pro's with ON right behind with 10.
The fastest average marathon with both females and males wearing the shoe was from Asics, and the slowest was Hoka.
The fastest male shoe on average was the Asics Metaspeed Tokyo Sky and the slowest was the Hoka Rocket.
The fastest female shoe on average was interestingly the Hoka Rocket and the slowest was the ON Cloudboom Lightspray by almost 15 minutes.
A lot of the data is skewed with times only coming from either male of female so created average differential to fastest time and to average time to show which shoe performed above the mean, or closests to the fastest racer on course. That is the last two categories.
Also, I added height and weight to help reveal how that can effect shoe choice for athletes in a sport with suck diverse body shapes like triathlon. Let me know again any interesting trends that arise. Thanks so much.
u/Working_Ad1215 — 4 days ago
Wearing jewelry while training?
Super random question but was curious if people wear jewelry through all their training and how it’s held up between all the sweat and hours in chlorine in the pool?
I have sentimental jewelry (earrings, necklace and bracelet) that i pretty much wear all the time but recently just signed up for a full IM and know that my training will be a lot more significant. They’re all 14k or 18k gold and i know the correct answer is to take jewelry off for the swim or heavy sweat. Just getting tedious constantly putting necklace and bracelet on and off but don’t want to ruin the gold. Should i just accept not wearing it for the next year?
Anyone wear their jewelry constantly and how has it held up?
u/Scubajunkie1 — 4 days ago
How do you manage Ironman training while travelling?
I'm a complete beginner working towards an Ironman. I haven't even run 10 km yet, so I'm still building my endurance and consistency.
I travel around 3–4 times a year, usually for 1–2 weeks per trip. Whenever I'm travelling, I find it difficult to motivate myself to train because mentally I'm in vacation mode and want to enjoy the trip. However, when I return, I feel like it takes me a while to get back to where I was with my training.
For those of you who do Ironman or triathlon training and travel regularly, how do you handle this? Do you train during your holidays, take a complete break, or adjust your training before and after travelling?
I'm particularly interested in hearing from people who have dealt with this long-term. How much does taking 1–2 weeks off affect your progress, and what's the best way to get back into training afterwards?
u/AlBastaki7 — 4 days ago
Shift work training
How is everyone handling training around 12 shift work. I work 12 hours 2 days 2 night and occasionally overtime. Do you guys just completely give up on the need for decent sleep during shifts?
u/NoComfortable7005 — 4 days ago
First 70.3
Hey all, planning on doing my first 70.3 next year. I’m building up my base on running and swimming for 3 months prior to my actual training block and then buying a bike closer to the start of my training block. Do you think this is ok as far as not building a solid base on bike until maybe a few weeks before my training block begins?
u/IAmABanana69420 — 4 days ago
When should I start training for Ironman Cascais 2027
Hey, so I’m thinking of doing Ironman Cascais next year, I have done two 70.3 this year.
Initially my plan was to take some time off and focus on just lifting weights for fun until the new year, but I’m concerned I will loose endurance.
Should I just slowly start training for the full Ironman? If so what’s the best approach to not end up feeling burnt out.
Thank you!
u/Flashy-Ad6081 — 4 days ago
Adding aerobars to a Cube Agree C:62 Race with an integrated ICR cockpit — any experience?
Adding aerobars to a Cube Agree C:62 Race with an integrated ICR cockpit — any experience?
Hi everyone,
I have a Cube Agree C:62 Race, size 53, with the stock integrated carbon CUBE ICR Cockpit System. I’d like to add aerobars for longer rides and training towards an Ironman 70.3.
Ideally, I’d keep my current cockpit and use an add-on. However, the flattened handlebar shape makes compatibility tricky.
So far, I’ve found AERO PLUG adapters with their required bridge and Profile Design Sonic Ergo 39a aerobars, costing around €320 for the complete hardware setup. AERO PLUG also states that fitting their adapters voids the handlebar warranty.
That’s quite a lot to spend, so I’m also considering replacing the cockpit with a separate handlebar and stem suitable for regular clip-on aerobars.
Has anyone here done either conversion on this bike?
- AERO PLUG: Which setup are you using, and how has it held up over time?
- Other add-ons: Are there any alternatives explicitly approved by CUBE for this cockpit?
- Cockpit replacement: Which handlebar, stem and spacers did you use, and what was the total cost, including installation?
I’d really appreciate photos, exact part names or feedback from anyone who has asked CUBE about this. I want to confirm compatibility before buying anything.
Thanks!
u/Fit-Tradition1833 — 4 days ago
First 70.3 before my first marathon..
I got into running last year.
I’ve ran half marathons already and now my mind is branching out into other challenges.
I’ve already signed up for the Chicago marathon for 2027 through the charity program so I’m locked in on that goal, for my first marathon. I’m currently thinking sub 4:00:00.
But this Michigan 70.3 really has my attention too.
Problem might be.. they’re 3 weeks apart. 70.3 in late Sept.. Chi mid Oct.
I run 3x a week now, fasted half is 1:55:49. Strength train 3x a week, and one long bike right currently 30-40 miles a week. I plan on getting in the pool next week after the Detroit half marathon and bumping biking up to 2x a week.
I’ll have a lot a year to build that much more endurance up. I’m just curious on recovery time after the 70.3.
u/NorthernSavages — 4 days ago
IM 70.3 Jones Beach New Date
signed up for NYCM the following weekend so really debating what to do here lol
u/OrdinaryExample9618 — 13 days ago
Can I train to get better for an Ironman in the future with this bike?
I know there is a huge difference in the kind you’d need for an actual race but it’s a starter for now. In the meantime I can crank up mileage & get used to the road bike feel.
u/Holiday_Statement805 — 12 days ago
Ironman Waco 70.3 Merch
Curious if this is an issue across all races or race specific. Got to the Ironman village right at 9:30am (30minutes after opened) & they were sold out of every Waco specific hoodie or shirt in XL & XXL.
I wasn’t able to make it down Friday in time otherwise I would’ve gone then.
u/kawabungashark — 12 days ago