Sense EnduranceCoachingAboutContact
Open water and marsh on the east side of the Blackwater National Wildlife Refuge.
Race Finder

IRONMAN 70.3 Eagleman.
Race Blackwater National Wildlife Refuge on your terms.

The Choptank opens the day. Then comes one flat 90 km lap through Blackwater and the Eastern Shore before two out-and-backs on foot through Cambridge.

Blackwater National Wildlife Refuge, the marsh.

Race day
13 Jun 2027
Course
Swim 1.9 km · Bike 90 km · Run 21.1 km
Historical air
18–27°C

What could you race?

I’m Tom, the coach behind Sense Endurance Coaching. Tell me where you are now and I’ll show you what a strong day in Blackwater National Wildlife Refuge could look like.

Let’s build your race

Let’s build your race.

Your age and race category help me estimate where that performance could place you. They don’t determine how fast I think you can race.

Change units

Eagleman gives you nowhere to hide a bad decision.

There is little climbing to interrupt the bike effort, so restraint has to come from you. Use the open roads to stay steady, not to prove how fast the course can be.

Choptank River · Gerry Boyle Park

Settle before the river starts dictating the split.

Current can change the pace you see in the Choptank. Settle into sustainable effort and keep sighting the marked course.

Seed honestly. Swim by effort, not pace.

Cambridge to Blackwater Refuge

Make the first half almost boring.

With no hills to force pacing discipline, it's easy to override on a course this flat. Hold your number regardless of how easy it feels.

Cap opening effort. Fuel early.

Open Eastern Shore roads · return to Cambridge

Let wind change speed without changing the plan.

Open marshland and farmland leave the course exposed. Treat any wind as the real terrain and finish planned nutrition.

Ride the wind, not the flat. Finish planned nutrition.

Choptank riverside · first out-and-back

Find the run before you race it.

Let the riverside opening settle before committing to pace.

Easy first aid station. Check posture.

Cambridge · second out-and-back

Spend the last kilometres, not the first.

Only progress once the first half has held together.

Stay tall. Choose the last move late.

What to check in race week

Check the latest Choptank swim map, water temperature and wetsuit decision, then look closely at wind and heat for the exposed bike and run. Build the fuelling and cooling plan around the conditions you will actually meet, not around the course being flat.

Forecast statusToo early for a forecast

A race-day forecast is not meaningful yet; check back closer to the event.

Temperature
18.0–27.4°CDew point centred on 18.1°C
Wind and gusts
10.7 km/hGusts up to 38.9 km/hPrevailing direction WSW
Rain likelihood
Up to 85%Wet-surface uncertainty retained

Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-14.Historical comparison only. This is not a forecast for 2027.

Make your finish prediction and I can send this plan to you in race week.

Build the legs.
Practise the decisions.

A finish range gives you something to work towards. The preparation is specific to this race: Train long uninterrupted aero efforts, practise fuelling without using climbs as reminders, and rehearse running well after a bike that never forced you to back off. Eagleman rewards the athlete who can create their own restraint.

I’m Tom. With Sense Endurance Coaching, I’ll build that preparation around your life, follow how you respond and adjust the work as you get closer to Blackwater National Wildlife Refuge.

Explore coaching
Trisutto certified80/20 Endurance certifiedBrett Sutton’s Coach the Coach programme

Training on your own? See half distance plans

Course sourceOfficial course

PhotographyU. S. Fish and Wildlife Service - Northeast RegionPublic domain · resized, cropped and monochrome