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Monday
Jun 9
2026
Synced
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—wks
—days
—hrs
—min
—sec
until race day
Base Building
WK 1 OF 20 · 22MI TARGET
0/22MI
this week
Log
Today
Fuel
Cycle
Training
Music
Coach
Maker
Today'sWorkout
Ready to log
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Your body is asking for recovery
How did today feel?
Week 1
This Week
Jun 15
This week is aboutHill Power
Your training weekTap a day
0.0/ 22
Recent Sessions
How are you feeling?
Suggested based on recent activity
How long are you out?
✓ Plan Adapted
＋ Quick LogSearch · pick a meal · add
More · in-run rate · race fuel · quick foods
In-run fuel rate
—g/hr
log a gel or drink during a run
All fuel · gels · chews · drink mixes · candy
Daily check-in
One tap logs how today felt — add detail or adjust the plan below.
How did today feel?
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Add a few below
Readiness updates as you answer.
Your legs right now
Last night's sleep
Energy today
Mood
Sport craving
Add resting heart rate optional
First entry sets your baseline. Later, a jump above it is a fatigue signal.
Note · optional
What happened today?
What shaped this run?
Optional — so your training reads honestly. Private to you, never shared.
My avg cycle length
28days
On hormonal birth control?
Today
Flow
Energy & legs
Sleep
Symptoms
Mood
Birth control
Notes
How each phase feels
▾
On Hormonal Birth Control
Your method suppresses natural phases, so phase timing doesn’t apply — and light or absent bleeding is expected, not a warning sign. Keep logging symptoms and fuelling; those still matter.
Your cycle data is private. It’s stored in your own account, never sold or shared. You can take it with you or remove it anytime.
Adjust your training weeks
Ran your weeks in a different order than the plan? Record the swap so your app reads what you actually did — your logged runs never move, only the plan.
Your race card
Training insights
▾
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🦵 Injury Risk
Calculating...
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🏁 Race Readiness
Calculating...
Your pace & heart-rate zones
Race Pace—
Easy Pace—
Easy HR—
Tempo HR—
Race HR—
Max HR Est.—
AI Training Coach
Powered by Claude · Knows your plan, data + cycle
🏆 Race Predictor
Enter a recent 5K, 10K, or half marathon → get your predicted marathon time + recalibrated training zones
→
⚡ Smart Analysis
Quick questions
Coach
Food Name
Servings
1 serving
1
Calories
Protein g
Carbs g
Fat g
Sugar g
Fiber g
Sodium mg
Tap any number to edit manually
Add food
Nutrition diary every logged day, saved
Choose Your Race
Tap any marathon to switch the full theme
Race day
Your race-week plan
Race Predictor
Enter a recent race result. We'll predict your marathon finish and recalibrate your training zones using the Riegel endurance formula.
Hr
Min
:
Sec
Predicted Marathon Finish
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Recalibrated Training Zones
Account
Integrations
Feel Fuller · build v152
Log & Review
Reads distance, time, pace & HR from a screenshot — you confirm before it saves.
Tuesday Jun 16
Easy Run · 4mi
Set Your Race
World Marathon Majors 2026 · 2027
Custom Race Date
The maker
Kristina Lenkowsky
Founder of Feel Fuller · Athlete · Former stage manager
Production management at Oklahoma City University, then years as a stage manager, running the systems that keep a live show on time. I love a system that holds under pressure.
So I built the opposite
Every tool I tried was built to help me eat less. I needed the opposite. Feel Fuller is cycle-aware and fuel-first, for athletes who train hard and deserve to eat like it.
Running NYC for the kids
This year I run the TCS New York City Marathon with Team For Kids, chasing 3:45. They fund free youth running programs across New York, and every mile of this build is for them.
Fast to founder
Running taught me the founder's skill before I needed it: show up, do the work, trust the plan. Feel Fuller is my 2026 passion project, in beta, growing with the people who use it.
The tool she built
A runner who builds her own tools.
Feel Fuller isn't a mockup — it's the live app I use for this build. Even the race bib your crew scans to follow me on race day.
