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PACERTRIP CITY EDITIONUS / RACE GUIDE

Isle du Bois Trail Run

The city you want to run becomes your next trip.

USDec 5, 202650km

Eddie's Trail Rides · YouTube

Race date in 53 days: Dec 5, 2026 Sat
City · Distance: Pilot Point · 50km
Entry fee: $110Varies by event and entry period
Status: OpenTBD ~ Sat, December 5, 2026See how to enter ↗

Official website ↗D-day as of Oct 13, 2026

About the race Runner stories How to enter Course Race Prep Travel

Why you dream of this race

THE DREAM

ABOUT THE RACE

A day you'll remember,
long past the finish line.

Held on the east side of Ray Roberts Lake, an hour north of Dallas and Fort Worth.

The course is mostly well-packed singletrack, mixed with technical sections featuring tree roots and rocks.

The road to your own record

Picture the course in advance
and find the pace that fits you.

When the city cheers

Streets lined with cheers, runners all around.
You'll be part of that scene.

The trip that follows the run

Take it slow with the finish still in you,
and meet the city all over again.

Stories from runners who've been there.

From the joy of finishing to the tough moments — read what runners wrote themselves.

Race reports: 2

Stephen WintonRan in 2017 · Finish time 9:16

“Despite not being the joyful experience I'd hoped for, I felt wonderful finishing.”

At the 2017 Isle du Bois 55-kilometer, lingering effects of a cold and injury left the runner dizzy and in pain from the second loop. They mixed in walking on the final loop to finish just before time limit, securing their only ultra finish that year and their 20th overall.

Read the original on Woodlands Trail Runner

T ZFinish time 8:34

“I finished in 8:34, and I'm ok with that.”

At the Isle du Bois 50-kilometer, the runner rolled an ankle several times, put on a brace, and kept going around the lakeside course at Ray Roberts Lake. They accelerated late to meet time limit and were content with their finish of 8 hours, 34 minutes.

Read the original on ....miles to go before I sleep....

We translated a short line from each public race report and summarized the experience. Finish times are as stated by the author, and past editions may differ from this year's weather and operations.

See it on video,
feel it through their stories.

Preview the course and read what runners who went before you wrote.

Isle Du Bois MTB Trail - Ray Roberts Lake

Eddie's Trail Rides

View on YouTube

This may be from a past edition. Check the organizer for this year's course and operations.

The way in that fits you

YOUR ENTRY

How to reach the start line —
start with what fits you.

Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.

Ultra

Entry cost $110

subject to change — verify officially

Organizer's page

20 Miler

Entry cost $100

subject to change — verify officially

Organizer's page

10 Miler

Entry cost $85

subject to change — verify officially

Organizer's page

4 Miler

Entry cost $50

subject to change — verify officially

Organizer's page

Official race website Entry options

From the start line to the finish

RACE WEEK

Your 50km

Know the course and time limit, and race day comes into focus.

Runners start · local timeFrom 07:30

Event	Start
Ultra50km	07:30
Other32.2km	07:30
Other6.4km	08:30
Other16.1km	08:00

50K $110~ / 20 miles $100~ / 10 miles $85~ / 4 miles $50~ (early-bird prices before 10/6, tax not included)

START

Ray Roberts Lake State Park, Isle Du Bois, Pilot Point, TX

Start · Google Maps

FINISH

Ray Roberts Lake State Park

Isle du Bois Unit

Finish · Google Maps

Cutoff
Final-lap entry cutoff at 1:45pm; full course closure at 5:00pm

The events are the 50K, 20 Miler, 10 Miler, and 4 Miler.

The start is in Pilot Point, TX, at 7:30 AM local time.

The finish is at Ray Roberts Lake State Park - Isle du Bois Unit.

Typical race-season temperature: around 7°C (44°F): Long sleeves + a throwaway layer for the start

Participant benefits

Not yet confirmed in the official race guide

To the start line,
step by step.

Pick up your bib, check your wave.
So on race morning, you can just run.

From the 2025 edition

Pick up your bib at the expo

Packet pickup information has not yet been announced.
For small trail races, race-morning on-site pickup is common; check the registration page announcement for details.

Ray Roberts Lake State Park

Isle du Bois Unit

Google Maps Directions

Stations & transport near the venue

Getting to the startNone — no public transit serves this venue
Getting to the finishNone — same rural trailhead as start
Transit cardNo dedicated transit card system; Pilot Point, TX (Isle du Bois Trail Run, at Ray Roberts Lake) is a rural…

Source · checked Aug 24, 2026

More details

Getting to the start

None — no public transit serves this venue

Race starts/finishes at a trailhead inside Ray Roberts Lake State Park, Isle du Bois Unit, Pilot Point, TX. Follow park signs to the 'Dorba Trail' parking lot.

A state park day pass is required for entry. Rural Texas state park venue with no train/bus/subway access — car required.

Map

Getting to the finish

None — same rural trailhead as start

Finish is at the same state park trailhead area as the start; car access only.

Map

Transit card

No dedicated transit card system; Pilot Point, TX (Isle du Bois Trail Run, at Ray Roberts Lake) is a rural North Texas venue outside the DFW public transit network (DART/TEXRail do not reach this far). Car access only - a rental car is needed to get to the trailhead.

Source · checked Aug 24, 2026

READY TO RUN

From race morning to after the finish.

Your start time, fuel and bag drop.
Know them ahead and the run feels easier.

Registration is handled through UltraSignup.

The early-bird entry fees before October 6 are $110 for the 50K, $100 for the 20-mile, $85 for the 10-mile, and $50 for the 4-mile, plus tax and fees.

Prices increase afterward.

Runners must begin their final lap by 1:45 p.m.,

and the entire course closes at 5:00 p.m. Aid stations are spaced 1.5 to 4 miles apart and provide water, sports drinks, bananas, sandwiches, and snacks.

However, the race is cupless, so runners must bring a personal bottle or hydration pack.

A day pass, camping pass, or Texas State Parks Pass is required for park entry.

Start times are 7:30 a.m. for the 50K and 20-mile, 8:00 a.m. for the 10-mile, and 8:30 a.m. for the 4-mile.

Times are local to Pilot Point. Check the latest official information before the race.

A trip built around the race

STAY A LITTLE

MAKE IT A RUNTRIP

The race is one day,
the trip can be longer.

From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.

Grapevine｜Private airport pickup/drop-off service at Dallas Fort Worth International Airport

$76

Isle du Bois Trail Run

About Isle du Bois Trail Run — what makes it special

A day you'll remember,long past the finish line.

The road to your own record

When the city cheers

The trip that follows the run