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The Ironman Arizona Strategy

140.6 Miles Around Tempe Town Lake

2.4-mile swim in Tempe Town Lake. 112 miles of three-loop bike on the Beeline Highway. 26.2-mile run along the lake. November in the Sonoran Desert means cool mornings, warm afternoons, and a sustained 10 to 13 hour effort. The supplement and pacing protocol is built around that duration.

Countdown loading
Sunday, November 22, 2026 · 6:40 AM MST
140.6 mi
Total Distance
~2,400 ft
Bike Elevation
10-13 hr
Sustained Effort
~12,000
Calories Burned
3-loop
Course Type
3 × 37 mi
Bike Loops
Course Profile

140.6 miles total, 2,400 ft of climbing

1,1001,2001,3001,4001,500Mile 0Mile 25Mile 50Mile 75Mile 100Mile 125Beeline Turn 11,530 ftBeeline Turn 21,530 ftSwim StartT1T2 / Run StartFinish
Key Peak / FinishNotable PointReference Marker
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The Bottom Line

Arizona Is Won on the Bike, Lost on the Run

The Beeline Highway out-and-back times 3 is a classic Ironman pacing trap. The first loop feels easy. The third loop is decided by what you did in the first. The marathon is flat but ~12 hours of cumulative fatigue makes the final 10K the hardest run of your year. Build the nitric oxide pool to cover the bike-to-run transition.

6w
E360 Chronic Load
5d
BRP Acute Load
140.6mi
Race Day Peak

The 4-Week Countdown

Train into shape. Rest into fitness. The final 4 weeks consolidate fitness; they do not build new capacity.

4 Weeks Out

Peak Training Block

  • Longest brick session (long bike + short run off the bike)
  • Open water swim sessions if not already weekly
  • Race-pace bike intervals + race-effort run blocks
  • Practice race-day fueling on every long bike + brick
  • Continue Endurance360 (8-12 week build is ideal for Ironman)
2 Weeks Out

Taper Week One

  • Cut volume 30-40 percent; maintain some race-pace intensity
  • One key brick session early in the week
  • Continue Endurance360 daily
  • No new wetsuit, no new bike setup, no new fuels
1 Week Out

Race Week

  • Cut volume 60 percent; short swim/bike/run shake-outs only
  • Begin 5-day Beetroot Pro loading on Tuesday
  • Three Day Rule: complex carbs Thursday-Saturday
  • Two Day Hydration: clear urine Friday and Saturday
Race Day

Race Morning

  • Beetroot Pro 60-90 min before swim start
  • No antibacterial mouthwash
  • Standard pre-race breakfast 2-3 hours before
  • Second BRP dose at T2 for 10+ hour finishers

The Nutrition Timeline

Race-day nutrition is decided in the weeks before, not in the saddle. Calibrated to Ironman Arizona.

6w

Six Weeks Out: Chronic Loading

Start daily Endurance360. Beta-alanine, creatine, and cordyceps require 4-6 weeks to saturate. Start now or skip the benefit.

5d

Five Days Out: Nitrate Loading

Plasma nitrate elevated for the bike → T2 → marathon transition, the section where most Ironman races are decided. Take 2 servings of Beetroot Pro daily. Avoid antibacterial mouthwash all week.

3d

Three Days Out: The Carb Load

Carb load aggressively: glycogen reserves are the absolute limiter on a 12-hour effort. 10-12 g carb per kg body weight Thursday through Saturday. Complex carbs in. Fibrous food out.

2d

Two Days Out: Hydration Lock-In

Hydration starts Friday. The bike leg dehydrates more than athletes expect even at 70F. Clear urine Saturday night.

RD
Sunday, November 22, 2026 · 6:40 AM MST

Race Day: Execute

60-90g carbs/hr on the bike, 200-300 cal/hr on the run. Sodium 750-1000 mg/hr on bike, 500-750 on run. Walk aid stations, second BRP at T2.

Stages

Ironman Arizona breaks into 6 distinct stages: swim, 3 bike loops, T2, marathon. Each demands its own fueling.

1

1. Tempe Town Lake Swim (Stage 1)

Distance
2.4 mile swim
Elevation
Lake surface, ~1,140 ft
Profile
Single-loop counter-clockwise. ~60-90 min for most age groupers.
Fueling Strategy

Pre-race Beetroot Pro 60-90 min before swim start. No fueling during the swim. Single gel + bottle on the bike rack for T1.

2

2. Bike Loop 1 (Miles 0-37)

Distance
37 mi
Elevation
Out to Beeline Turn (+390 ft), back to Tempe
Profile
Long false-flat climb out on the Beeline Highway. Headwind possible. Discipline phase.
Fueling Strategy

350-400 cal/hr from bottles. Hydrate aggressively, especially the first hour. Aim for 60-90g carbs/hr.

3

3. Bike Loop 2 (Miles 37-74)

Distance
37 mi
Elevation
Same out-and-back, second time
Profile
Familiar terrain. Crowd thinning. Energy and pace temptations.
Fueling Strategy

Continue 60-90g carbs/hr. Take an electrolyte capsule at the turn-around. Refill bottles at every aid station.

4

4. Bike Loop 3 (Miles 74-112)

Distance
38 mi
Elevation
Final out-and-back climb to Beeline
Profile
Headwind likely on the return. Sun fully up. Fatigue compounds. This is the race-defining segment.
Fueling Strategy

Drop to easier carbs (gels, soft food). Caffeine here if you use it. Save legs for the marathon.

5

5. Marathon Loop 1 (Miles 0-13.1 run)

Distance
13.1 mi run
Elevation
Flat path around Tempe Town Lake
Profile
Slight rolling hills. Sun is high. Coming off ~6 hours on the bike, legs feel disconnected.
Fueling Strategy

Walk the aid stations. 200-300 cal/hr (less than bike). Cola, broth, gels. Take an electrolyte capsule every 30 min.

6

6. Marathon Loop 2 (Miles 13.1-26.2 run)

Distance
13.1 mi run
Elevation
Same loop, second time
Profile
Sun setting. Most age groupers slow significantly here. The race is decided in this segment.
Fueling Strategy

Coke + caffeine every aid station. Save one gel for mile 24. Mental game: 1 mile at a time.

The IM AZ Stack

Two products. Different mechanisms. Mapped to the chronic and acute demands of Ironman Arizona.

Acute · Race Week

Beetroot Pro

Patented betaine nitrate (NO3-T) delivering 300mg+ standardized dietary nitrate per serving. Reduces oxygen cost at sustained effort by 1 to 3% in published research. The 5-day pre-race loading protocol peaks nitric oxide for IM AZ's hardest sections.

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Chronic · 6 Weeks

Endurance360

Beta-alanine for lactic acid buffering, creatine for repeated hard efforts, cordyceps for VO2 max support. Beta-alanine requires 4 to 6 weeks of consistent loading. Starting at 6 weeks before IM AZ is the deadline, not the suggestion.

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The Early Breakaway Pack bundles both products at a reduced per-product price. For IM AZ athletes starting Endurance360 at 6 weeks out and Beetroot Pro at 5 days out, the bundle covers the full race week with one purchase.

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Target Finish Times

Realistic target windows for Ironman Arizona by athlete archetype. Use these to set your pacing.

Pro / Top Age Group
9:00 to 10:30

Sub-10 is the benchmark of the top age groups. Requires sub-5:00 bike and sub-3:45 marathon.

Strong Age-Group
10:30 to 12:00

Mid-pack age-group competitive. Sub-12 is a meaningful goal for most experienced Ironman athletes.

First Ironman
12:00 to 14:00

Most first-time finishers fall here. Realistic with structured training and conservative bike pacing.

Cutoff-Aware Finish
14:00 to 17:00

Course closes at midnight (17:20 from race start). Walking the marathon is acceptable if cutoffs are managed.

Veteran Notes

Lessons from past Ironman Arizona finishers that no training plan teaches.

Negative-split the bike

Loop 1 should be the slowest of the three. Most age-groupers go out too hard and pay for it across the marathon. Treat the first 30 miles as warmup, the middle as steady-state, the last 30 as race pace.

Mouthwash kills the protocol

Antibacterial mouthwash race morning kills the oral bacteria that convert dietary nitrate to nitrite. A 5-day loading protocol can be undone by one mouthwash rinse. Plain water only.

Second BRP dose at T2

Plasma nitrate from the morning dose is depleted by mile 6 of the marathon. A second serving at T2 (or late bike) re-elevates nitric oxide for the marathon, which is where the race is decided.

Walk the aid stations

20 seconds walking through aid stations on the run is faster than running through and choking down fluids. Drink, eat, take electrolytes, then run again. Easier to restart running than to stop a death march.

Caffeine late, not early

Save caffeine for the back half of the bike and the run. Front-loading caffeine on the swim/early bike means crashing on the marathon. Practice the exact timing in long training sessions before race day.

Body Glide everything

12 hours of repetitive motion finds every chafe point you have. Body Glide the swim chafe zones, the bib short edges, the run kit. T1 and T2 are not the time to add cream; do it before the swim.

IM AZ Questions

When should I start nitrate loading for Ironman Arizona?+
Start a 5-day Beetroot Pro loading protocol on Tuesday before the Sunday race. Take 2 servings daily Tue-Sat, the race-eve dose Saturday with dinner, and the race-morning dose 60 to 90 minutes before the 6:40 AM swim start. For Ironman athletes, take a SECOND serving at the T2 (bike-to-run) transition. This re-elevates plasma nitrate for the marathon, which is where most Ironman races are decided.
How many calories will I burn at Ironman Arizona?+
Roughly 12,000 calories over a 12-hour finish, scaling with body weight and finish time. The race takes 10 to 17 hours for most age-group finishers. You will absorb 3,000 to 5,000 calories during the race depending on gut training and pacing. The 7,000+ calorie deficit is unavoidable. The goal is to fuel enough to keep cognition stable and pace controlled, not to eliminate the gap.
Why take a second dose of Beetroot Pro on the bike?+
Plasma nitrate from a single pre-race dose begins declining after 3 to 4 hours. An Ironman bike leg alone is 5 to 7 hours. By the time you reach T2, your morning dose is no longer driving the same physiological effect. A second serving at T2 (or late on the bike) re-elevates plasma nitrate for the marathon, which is the section where most Ironman athletes lose the most time.
How do I time Beetroot Pro around the swim start?+
Take Beetroot Pro 60 to 90 minutes before the swim start with 10 to 12 oz plain water. Eat your normal pre-race breakfast 2 to 3 hours before the start. The wetsuit + cold water + adrenaline of the swim does not affect nitrate kinetics. Plasma nitric oxide peaks during T1 and the first bike loop, which is exactly when you want the cardiovascular efficiency to settle.
How does the heat affect my fueling at Ironman Arizona?+
November in Tempe runs 50s at swim start, climbing to mid-70s by the marathon. Heat is not the limiting variable, but cumulative sun exposure across 12+ hours dehydrates more than people expect. Target 750-1000 mg sodium per hour on the bike, 500-750 mg/hr on the run. Pee color check at every special needs bag: clear yellow is good, dark amber is a problem.
Should I use Beetroot Pro and Endurance360 together for Ironman?+
Yes, and the stack is especially important for Ironman duration. Endurance360 is the chronic loading product: beta-alanine for the long bike + marathon lactic load, creatine for repeated efforts, cordyceps for sustained VO2 max. Start Endurance360 8 to 12 weeks before race day (longer than a marathon needs). Beetroot Pro is the acute race-week product. The Early Breakaway Pack bundles both at a reduced price.
How should I pace the 3 bike loops?+
Negative split the bike. Loop 1 should be 5 to 10 minutes SLOWER than loop 3 target pace. Loop 3 should be your fastest of the three. Most age-groupers go out too hard on loop 1 because they feel fresh and the wind is at their back on the return. By loop 3 they are paying for it. Discipline on loop 1 = legs for the marathon.
When should I take caffeine during Ironman Arizona?+
First caffeine dose late on the bike (mile 90 to 100), second dose at T2 or early on the run, third dose around marathon mile 18. Caffeine half-life is 5+ hours so you do not need it constantly. The cognitive resilience matters most in the final 10K when most athletes mentally bonk. Practice this exact protocol in long training sessions; race day is not the time for new caffeine timing.
What is the Ironman Arizona course cutoff?+
The course closes 17 hours after your swim start. With a 6:40 AM start, the cutoff is roughly midnight. Intermediate cutoffs apply: swim 2:20, bike 10:30 from start. The cutoffs are achievable with walking the back half of the marathon, but no athlete plans to walk. Conservative bike pacing is the defense against cutoff pressure.
Sunday, November 22, 2026 · 6:40 AM MST

Ready for Ironman Arizona?

Six weeks of Endurance360 plus five days of Beetroot Pro is the protocol that converts months of training into a strong finish. Stack the system, follow the plan, and arrive at the start line ready.

140.6
Swim + Bike + Run
2,400ft
Bike Climbing
~12k
Calories Burned
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This is an independent training and nutrition resource for Ironman Arizona athletes and is not affiliated with or endorsed by the race organization.

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