Gordo Byrn

Gordo Byrn

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Ultraman champion and endurance coach; endurance training, recovery, and high-performance habits.

Expert DPTs Unlock Rapid Neck Recovery with E‑Stim
SocialApr 23, 2026

Expert DPTs Unlock Rapid Neck Recovery with E‑Stim

Follow up on my Neck Exercises video The whole process has been ~2 months Once I got things to settle, Heather (DPT #1) got in there to release the muscles that were tight Yesterday, Michael (DPT #2) went back in, then used e-stim...

By Gordo Byrn
Build Capacity by Training Below Breakpoint, Not Maxing Load
SocialApr 21, 2026

Build Capacity by Training Below Breakpoint, Not Maxing Load

Load is the result, not the goal, of smart training. @Alan_Couzens has a great article called Leveling Up on his archive blog. The picture of the levels is from that. As we move up the levels, we can bump into breakpoints where...

By Gordo Byrn
Load, Don't Push: Sustainable Zone 3 Training
SocialApr 20, 2026

Load, Don't Push: Sustainable Zone 3 Training

I do best thinking "loading" rather than "hard" A 3mmol / 85% of HRmax doesn't feel hard, it's the lower end of Zone 3. What I feel is an increased work rate & my breathing deepens. There's no burning in my...

By Gordo Byrn
Rudy’s Steady Power and Strategic Pacing Dominate Ironman
SocialApr 19, 2026

Rudy’s Steady Power and Strategic Pacing Dominate Ironman

Fast Ironman Racing Rudy's files are up over on Strava. I hope he does a podcast - maybe he'll do an interview with me. Here's what I see: Bike (3:56, 4,150kJ) - HR spikes early as he adjusts from the swim - Then he settles,...

By Gordo Byrn
Energy Turnover Predicts Performance Better than Distance
SocialApr 17, 2026

Energy Turnover Predicts Performance Better than Distance

One way to reconcile the success of different protocols is to think in terms of energy turnover Road running is relatively linear for energy vs mileage. I've found mileage works well for tracking Steve's point. The best predictor of my triathlon...

By Gordo Byrn
Bakken Tempo Intervals Feel Easy at Low Heart Rate
SocialApr 15, 2026

Bakken Tempo Intervals Feel Easy at Low Heart Rate

Bakken for Fast Triathlon From my VO2 Block, I have a good idea of Tempo on the bike. Bike Tempo is 240-250w. I don't have a good idea on my current run profile. This session is at Ironman Core Pace. That is...

By Gordo Byrn
Simplify Your Transition, Cut Seconds Off T1/T2
SocialApr 13, 2026

Simplify Your Transition, Cut Seconds Off T1/T2

Simple Is Faster As we head into triathlon race season, make your transition area as simple as possible ✅Bike shoes clipped in ✅Run shoes on the ground ✅Race belt under shoes (so it doesn't blow away) ✅Sunglasses in one run shoe ✅Inhaler (if you need it)...

By Gordo Byrn
Progressing Fast: Seasonal Training Boosts Race Speed
SocialApr 12, 2026

Progressing Fast: Seasonal Training Boosts Race Speed

Short-course season progressing well Idea was to take the pressure off my training and focus on improving swimming (winter) then bike top end (spring), then bike tempo (summer) Cocoa Beach Tri this morning, 1-2-3 less than a minute apart. 2nd for me Each...

By Gordo Byrn
Fasting and No Warm‑up Yield Unexpectedly Low HR/Lactate
SocialApr 10, 2026

Fasting and No Warm‑up Yield Unexpectedly Low HR/Lactate

Full Profile First one in a while - unusual results with HR/lactate much lower than I expected Part of that is no bike beforehand (I usually do a submax bike before testing run), plus cool room Other factors may be high blood volume,...

By Gordo Byrn
Short Rest Intervals Boost Pace Work Efficiency
SocialApr 6, 2026

Short Rest Intervals Boost Pace Work Efficiency

I couldn't find the original post but a ways back @StephenSeiler asked the community why swimmers do so many intervals, rather than continuous work sets The new Bakken book makes a strong case for the benefit of interval training. The key...

By Gordo Byrn
Boost Metabolism: Cross‑Train 1‑4 Times Your Running
SocialApr 4, 2026

Boost Metabolism: Cross‑Train 1‑4 Times Your Running

Runners, if you want to accelerate the metabolic transformation Alan explains then cross train Start with 1:1 ratio (in minutes) with your run volume. The cross training should be supplemental Zone 1 / Easy volume. This will help to rebalance your...

By Gordo Byrn
Simple Neck Routine Relieves Riding‑Induced Tension
SocialApr 3, 2026

Simple Neck Routine Relieves Riding‑Induced Tension

Neck Exercises With all the indoor riding I did this winter/spring, my neck flared up This short is a summary of the exercises I used to settle it down MWF when I was in the acute phase MF for maintenance

By Gordo Byrn
Glycolytic Power Peaks After Eight HIIT Sessions
SocialMar 31, 2026

Glycolytic Power Peaks After Eight HIIT Sessions

Third HIIT Session 2026 Legs felt a flat at the end of the last week so freshened Friday to Monday Had a great session this morning and felt like I hit VO2 Max on reps 3 and 4 This is the first time...

By Gordo Byrn
Zone 6 Powers a Full Sprint Interval Day
SocialMar 30, 2026

Zone 6 Powers a Full Sprint Interval Day

Using Zone 6 for Very Fast Training I wrote up my experience of expanding my Sprint Interval Workout, to a Sprint Interval Day You'll find the full article on Endurance Essentials https://t.co/NP3KhauOIe

By Gordo Byrn