RUN TREX homepage with performance calculator and running tools RUN TREXRUN FURTHER. POTENTIAL.

HOW FAST
CAN YOU RUN?

Enter one race time. See what you could run everywhere else.

▥ Smarter
Training♛ Bigger
Goals◎ Brighter
Futures

RUNNING PERFORMANCE
CALCULATOR

Enter one race time. See your equivalent times at every distance.

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DISCOVER YOUR POTENTIAL

MORE THAN A CALCULATOR

Everything high school runners need to train smarter, run faster, and achieve more.

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Linear Results

Same-Pace Equivalent

See your equivalent times at other distances using a simple same-pace calculation.

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Non-Linear Results

Estimated Race Performance

Get more accurate predictions using proven endurance models tailored for real-world racing.

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Goal Time Calculator

Set a goal. Get the plan.

Enter a target time and see what you need to run at other distances to be on track.

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Track Splits

Get your splits.

See lap and split times for any distance, from 400m to 5K+.

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Training Paces

Train with purpose.

Find your easy, marathon, threshold, and interval paces based on your fitness.

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PR Tracker

Track your progress.

Log your races, monitor PRs, and see your improvement over time.

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College Running

Turn your dreams into opportunities.

Explore recruiting info, college standards, and resources to get noticed.

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“Faster athletes. Brighter futures.”
CALCULATE   TRAIN   IMPROVE   BELONG