150,000+ Members 250,000+ Race Plans

Race Smarter. Ride Faster. Win More.

The world's most advanced planning and optimization tool for cyclists and triathletes — trusted by pros, powered by science.

Sign Up For Free Listen To An Intro
TJ Tollakson

"I just wanted to drop you a note and let you know I used your service to profile the course at IMMT this past weekend en route to my record setting performance."

— TJ Tollakson

What can Best Bike Split do for you?

  • Predict future bike splits and race times
  • Plan optimal power targets based NP
  • Calculate required power to hit a target time
  • Plan optimal power targets based on specific TSS
  • Pre-train plans indoors on Zwift, TrainerRoad, etc.
  • Follow power guides on your Garmin or Wahoo
  • Build custom courses with surface type detection
  • Determine equipment to use for future races
  • See impact of changes in weight, drag or power
  • Compare race plans with actual ride analytics
  • Estimate aerodynamic drag without a wind tunnel
  • See how weather affects race day strategy
  • Identify ideal moments to attack or hold back
  • Plus much much more...
Our math and physics engine takes your power data, course info, and race day conditions to predict your race performance and create the perfect power plan.
enter data

Input Your Data

Set up an athlete profile with data like weight, height, FTP, MaxHR, bike type, wheel type and components to name a few. Then select an existing course or create a new course to ride.

create profile

Create Race Profile

With your data we calculate CdA, rolling resistance and mechanical loss. Mix in your course's distance, altitude changes, wind direction, several 1000 more variables and we're ready.

get best bike split

Get Power Plan

Using our math and physics engine we will output the best possible power based plan to allow you to have the fastest bike split possible given the course conditions and any power limitations.

Trusted by Top Teams, Pros and Coaches Around the World