Honolulu Marathon
Sunday, December 13, 2026
Elevation Gain
60m
Elevation Range
32m
Avg Temperature
72°F / 22°C
Course Profile
flat
Course Map & Elevation
Course Overview
A mostly flat out-and-back course with 60m of total elevation gain, dominated by one landmark: Diamond Head, which you climb twice (km 8-10 and km 37-40). Net elevation change is zero. The one thing that makes Honolulu unique is that heat and humidity are the primary opponents, not terrain — the 5:00 AM pre-dawn start and tropical conditions make this a race won or lost by hydration and heat strategy.
Key Segments
Ala Moana to First Diamond Head Climb
Terrain: Flat from sea level (3m) through Waikiki, then a sustained climb to 42m over Diamond Head. Descent back to 6m.
Challenge: The 5:00 AM pre-dawn start and early Diamond Head climb arrive before your body is fully warmed up. Sunrise on Diamond Head is stunning but distracting.
Tactic: Start very conservatively — 10-15 sec/km slower than goal pace. Walk through early aid stations to drink fully. Run Diamond Head by effort.
Kahala to Hawaii Kai Out-and-Back
Terrain: Flat, coastal running at 3-10m elevation along Kalanianaole Highway. Minor undulations. Turnaround at Hawaii Kai.
Challenge: Long, exposed, sparsely spectated out-and-back along the coast. The sun rises during this section and heat builds rapidly. Mentally monotonous.
Tactic: Break into 5km mental segments. Hit every aid station — drink water AND electrolytes. Pour water on your head and neck. Do not try to make up time here.
Second Diamond Head Climb
Terrain: Climb from 8m to 42m over Diamond Head for the second time, then descent back to sea level.
Challenge: The same climb that felt manageable at km 8 is brutal at km 37 in full tropical heat on depleted legs
Tactic: Shorten stride, increase cadence. Walk the steepest pitches if needed — the descent and flat finish are just ahead.
Descent to Kapiolani Park Finish
Terrain: Descent from Diamond Head (42m) to Kapiolani Park (3m). Flat final kilometer.
Challenge: Fatigue and heat exhaustion risk. The finish is close but the body is depleted.
Tactic: Use the downhill. Save a small kick for the flat final kilometer into Kapiolani Park. The crowd builds toward the bandstand.
Race-Specific Training
- •Heat acclimatization is mandatory — do at least 4-6 long runs in warm, humid conditions (20°C+ / 68°F+) to build physiological adaptation
- •Practice your electrolyte and hydration strategy on every long run — aim for 500-700mg sodium per hour and drink at every aid station
- •Include two long runs with a moderate hill climb inserted at both km 8-10 AND again at km 32-35 to simulate the double Diamond Head ascent
Conditions & Environment
Altitude
Sea level. Maximum elevation 42m at Diamond Head summit. No altitude concerns.
Weather
Second Sunday in December. Temps 20-27°C (68-80°F) with high humidity, even at the 5:00 AM start. Trade winds provide some relief but are not guaranteed.
Sun & Wind
Pre-dawn darkness for the first 90 minutes. Sunrise during the Kahala/Hawaii Kai section. Kalanianaole Highway is fully exposed with limited shade. Trade winds can help but also create headwinds on the return leg.
What to Wear
Lightweight, moisture-wicking singlet and shorts. Hat or visor mandatory. Sunglasses for the sunrise section. Apply sunscreen AND anti-chafe products generously — humidity increases friction.
Pacing Strategy
| Segment | Pace | Note |
|---|---|---|
| km 0-11 | 10-15 sec/km slower than goal pace | Pre-dawn start. Run Diamond Head by effort. Bank energy for the heat that is coming. |
| km 11-30 | Goal pace, adjusted for heat | Flat out-and-back. Hit every aid station. Expect to slow 5-10% from goal pace as heat builds. |
| km 37-40 | Effort-based, accept slower splits | Second Diamond Head climb. Do not chase pace. Walk if needed — the flat finish is just ahead. |
| km 40-42.195 | Best sustainable effort | Downhill off Diamond Head into Kapiolani Park. Use the descent and save a small kick for the final flat kilometer. |
Race Day Tip
The 5:00 AM start means a 2:30-3:00 AM wake-up. Eat your pre-race meal by 3:00 AM. Honolulu traffic is light but the walk to the start at Ala Moana takes longer than expected. The pre-race fireworks at 4:55 AM are spectacular — enjoy them, they mark the last calm moment before the gun.
Race details subject to change. Verify with the official race website.
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