MidLab:Middle Distance Running

myajiri

In-app purchases

About this app

MidLab is a science-based training app built exclusively for middle-distance runners (800m–1500m). Take the ETP test to measure your running profile and get a personalized training plan automatically.
▼ ETP test — measure your fitness
Run a progressive 400m lap test to calculate your Endurance Training Pace (ETP). Your ability is rated on a 5-tier scale from SS to C.
▼ Limiter analysis — find your weakness
MidLab classifies your endurance limiter into three types: Cardiovascular, Muscular Endurance, or Balanced. Know exactly what's holding you back.
▼ Auto-generated training plans
Based on your ETP and limiter type, MidLab builds a periodized plan—Base, Build, Peak, Taper—with a weekly schedule targeting your goal race.
▼ 17 workout templates
Easy runs, tempo, intervals, repetitions, and more. Paces and volume auto-adjust to your limiter type.
▼ Race predictions & analytics

Predicted times for 800m / 1500m / 3000m / 5000m
Estimated VO2max
6 training zones (Recovery–Repetition)
ETP trend graph to track progress

▼ No account required
Data stays on your device. Install and start your first ETP test right away.
【Who is it for?】

Student athletes improving their 800m–1500m times
Runners who want science-driven training
Coaches managing athlete programs

【Premium】
Training plan creation, weekly workout customization, and advanced features.

Monthly: $6.99 • Annual: $59.99 (save 2 months) • 7-day free trial
Opus 4.6