Launching for the world's iconic Longest Ultra Marathon 2027 season
LongestUltraMarathon,made
predictable
The first prediction engine built only for the Longest Ultra Marathon. Your medal odds, your cut-off buffer, your finish range — before race day, not after it. The app is coming — and the earliest names on the list get it first at 20% off.
Many runners on the list · Free to join · No card needed
Coming soon on the
App Store
Coming soon on
Google Play
to the 2027 starting gun · Down run
Try it now
Your marathon time & target medal
Target medal
Your predicted finish time
8:54 - 9:51
most likely around 9:22
- Sub - 12:00100%
- Sub - 11:00100%
- Sub - 10:0091%
- Sub - 09:00 ◆22%
- Sub - 07:300%
◆ your target · quick estimate from marathon time and goal medal
Quick estimate from your marathon time and target medal. The full app uses 61 inputs — training, terrain, heat, history — and updates all season.
The first prediction model made for the Longest Ultramarathon — not adapted from a marathon app.
61 inputs. Six output domains. It gives you a finish range, never a single number you can't trust — plus medal odds, fitness and risk scores, cut-off buffers and a route simulator, for both the Up run and the Down run.
Finish time ranges
50%, 68% and 90% confidence bands. A range you can plan around.
Medal probability
Sub - 09:00, Sub - 10:00, Sub - 11:00 or Sub - 12:00 — odds that move every time you train.
Cut-off intelligence
Your expected arrival and margin at all 14 timing landmarks, in both directions.
Route simulator
How far your training takes you on the actual route — today, not in theory.
90 km doesn't care how you feel. Imara does.
Imara ensemble
Your prediction
Reliability high · Hoang
Predict · Hoang · Imara ensemble · reliability high
10:45
most likely · 68% range 10:05 – 11:25
Qualified (marathon under 5:00) · Optimistic — faster than the 68% range
Medal chances — this medal or better
◆ your target · bars update when you log a week or race result
0% chance of Sub - 09:00 or better. High risk — target the next medal down
4:53 – 5:33
Halfway split (68%)
+19 min
Positive split
3%
DNF risk
29% – 67%
Field percentile
Today's session
Quality-uphill
Week 1 · P1 Foundation
2027 Season
310 days · 45 weeks to race · Sun, Jun 13, 2027
Up run · Durban → PMB
Today · Fri 7 Aug 2026 · Week 1 · P1 Foundation
WU 20 min easy (~3.6 km) + Uphill repeats: 10 × 600 m strong uphill w/ jog-down recovery [12.0 km] + CD 10 min (~1.8 km)
Purpose: Raw climbing power and elastic strength — cashed in on every hill, either direction
Coach insight: Today's session builds the hill strength you'll need before Drummond.
Route guidance · terrain-aware
Road surface
Tar (hill circuit)
Elevation type
Hill repeats · climb prep
The problem
Global running apps weren't built for a race like this.
“Will I make the cut-offs?”
Imara gives you a buffer in minutes at every timing mat — before you toe the line.
“What medal can I realistically achieve?”
Imara gives you a probability for each medal, updated with every run you log.
“Am I actually on track — or guessing?”
Imara scores your readiness every week and tells you straight when to ease off.
How it works
Three minutes to set up. Then it runs your whole season.
01 · Tell us three things
Your experience, your marathon time, your medal target. Structured choices, not forms — about three minutes.
Welcome · Step 1 of 3
A few things about you
Your name
Age band
Sex
Height (cm)
Weight (kg)
Structured choices keep your profile accurate for the model.
02 · Wake up knowing exactly what to run
Today's session, distance, pace band, surface and why it matters: “This run improves your endurance buffer for the Down Run's second half.”
Today's session
Quality-uphill
Week 1 · P1 Foundation
2027 Season
310 days · 45 weeks to race · Sun, Jun 13, 2027
Up run · Durban → PMB
Today · Fri 7 Aug 2026 · Week 1 · P1 Foundation
WU 20 min easy (~3.6 km) + Uphill repeats: 10 × 600 m strong uphill w/ jog-down recovery [12.0 km] + CD 10 min (~1.8 km)
Purpose: Raw climbing power and elastic strength — cashed in on every hill, either direction
Coach insight: Today's session builds the hill strength you'll need before Drummond.
Route guidance · terrain-aware
Road surface
Tar (hill circuit)
Elevation type
Hill repeats · climb prep
03 · Watch your medal odds move
Finish ranges, medal probability and cut-off intelligence — recalculated every time you log a run or add a race result.
Imara ensemble
Your prediction
Reliability high · Hoang
Predict · Hoang · Imara ensemble · reliability high
10:45
most likely · 68% range 10:05 – 11:25
Qualified (marathon under 5:00) · Optimistic — faster than the 68% range
Medal chances — this medal or better
◆ your target · bars update when you log a week or race result
0% chance of Sub - 09:00 or better. High risk — target the next medal down
4:53 – 5:33
Halfway split (68%)
+19 min
Positive split
3%
DNF risk
29% – 67%
Field percentile
Founding members
First 20 on the list: 20% off your first season.
Launch price will be R99/month. Founding members train the whole 2027 season for the equivalent of R79/month — locked the day the app goes live.
We send exactly three things: your predicted range today, one training insight a month, and your invite on launch day.
Membership
One membership. The whole season.
R99/month, or R990 once for a 12-month build-up — two months on us.
Cancel anytime. Predictions are estimates for recreational runners, not guarantees.
Know someone chasing a medal?
Every ultra Marathon runner you know is guessing right now. Send them their prediction.
Quick answers