Tools Field Notes Gear About
1%
Training Tools for Runners

Built for the 1%
-
and everyone
running toward it.

Only ~1% of people have finished a half marathon or longer. These tools are built for that 1%.

Browse Tools Field Notes
6
Tools
13.1
Miles Minimum
1%
Of All Runners
The Kit

Tools

01
Pace Calculator
Enter your splits mid-run and instantly see what pace you need across every remaining distance to hit your goal average.
Live
02
Race Predictor
The Riegel formula, done right. Plug in any race result and get realistic finish time predictions across every distance.
Live
03
Training Plan Generator
Answer a few questions about your goal race and current fitness. Get a structured plan you can actually follow.
Live
04
Taper Calculator
Know exactly when to pull back and by how much. Arrive at the starting line fresh, not flat.
Live
05
HR Zone Calculator
Set your five heart rate training zones from your max and resting HR. Stop guessing, start training in the right zones.
Live
06
Mileage Ramp Tracker
The 10% rule, visualized. Input your current weekly mileage and see a safe ramp-up schedule to your target volume.
Live
Clutter free, always

These tools cost nothing. If one helped you on a run, buy me a gel — It takes 30 seconds and keeps the site going.

Buy me a gel →
From the road

Field Notes

All Field Notes →

Built by a runner,
for runners.

I ran my first half marathon because someone told me I probably couldn't. I've run three more since — including a 1:52 PR — because it turns out I can't stop.

I built these tools because I wanted them during training runs and even mid-race and couldn't find anything that wasn't bloated, covered in ads, or built for people who run once a week.
Run1% is what I wished existed.

Based in Eugene, Oregon. No accounts, no cookie banners, no ads. Just useful tools for people serious enough to go the distance.

I hope you find these tools as helpful as I do.

Half Marathon Finishes
1:52
Personal Record
EUG
Eugene, Oregon
100%
Clutter Free, Always
run1percent@gmail.com