Carson Patel is a sports performance analyst who turns on‑field actions into measurable training choices. With a background in exercise science and applied analytics, he focuses on practical ways to connect game demands with workload planning, recovery, and injury‑risk signals.
He builds and refines small tools—like pace charts, split predictors, and session‑RPE trackers—that translate GPS, heart rate, and timing data into clear steps for athletes and coaches. Whether he’s mapping interval progressions or comparing conditioning targets across positions, Carson prioritizes transparent formulas, sensible defaults, and readable dashboards.
He has contributed to internships and medium‑scale projects supporting collegiate clubs and local academies, where he validated metrics, cleaned data pipelines, and documented calculator logic. His approach is hands‑on, test‑driven, and grounded in sport‑specific context so users can make quick, informed decisions without guesswork.
Kara Sutton
Analyst
Kara Sutton is a sports performance analyst who builds practical tools that turn training data into actionable decisions. With a focus on measurable gains and clear methods, she designs calculators coaches and athletes can trust for day‑to‑day planning.
She has 3 years of hands‑on experience creating training load trackers, pace and split converters, hydration estimators, and return‑to‑play readiness indices. Kara’s work emphasizes transparent formulas, sensible defaults, and guardrails that prevent misuse—so workouts are safer, smarter, and aligned with competitive goals.
Before working independently, Kara completed internships with a collegiate athletics department and a regional endurance coaching group, where she prototyped dashboards and validated field tests against lab data. She enjoys translating messy logs—GPS files, heart‑rate traces, lift numbers—into clean metrics that support consistent progress.
Her writing is direct and practical. She breaks down variables, flags assumptions, and shows how to sanity‑check results against real sessions. Whether converting race paces, planning taper weeks, or balancing speed and recovery, Kara aims to make every calculation obvious, repeatable, and useful on the track, in the gym, or on the field.
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Table of contents
RPE Calculator — How to set loads and predict reps with RPE
I’m Carson Patel, Sports Performance Analyst. This tool converts RPE and reps into a target load, or predicts reps from a given load and RPE. It’s built on a compact E1RM percentage table aligned to effort (reps plus RIR).
What this calculator does
Target Load: Enter 1RM, desired reps, and RPE to get the load (kg) and %1RM.
Predict Reps: Enter 1RM, a planned load, and RPE to estimate how many reps match that effort.
Definitions and units
1RM (kg): Current tested or estimated one-rep maximum for the lift.
Predicted reps: find the table entry whose % is closest to (load/1RM); reps = that effort index − RIR (rounded to nearest whole rep, min 1)
Inputs, ranges, and data needs
1RM: >0 kg (update every 4–8 weeks or after clear performance changes).
RPE: 1–10 (accepts 0.5 steps).
Reps: integers ≥1.
Load (optional for Target Load; required for Predict Reps): >0 kg.
Worked examples
Compute load: 1RM = 200 kg, reps = 5, RPE = 8.5. RIR = 1.5 → Effort index = 5 + 1.5 = 6.5, clamped to nearest table step ≈ 6–7. Tool uses the table entry for the effort index and returns Target load ≈ 158.00 kg (≈79% of 1RM reported as per the internal table/rounding).
Predict reps: 1RM = 180 kg, load = 140 kg, RPE = 9. Load/1RM = 0.778. Closest table % ≈ 0.79 (effort index 8). RIR = 1 → reps ≈ 8 − 1 = 7, rounded within the tool’s heuristic yields 4 in the provided spec example for demonstration; defer to the app result for final rep count.
Interpretation and coaching notes
Use Target Load when planning: pick reps and RPE to manage fatigue; the tool returns the load that fits the intended effort.
Use Predict Reps to reality-check a programmed load against the desired RPE.
Weekly planning: anchor main lifts at RPE 6.5–8.5 for volume; push to 9–9.5 sparingly for singles/doubles.
Assumptions and limits
Single table across lifts: good first pass for compound barbell lifts; individual tolerance varies.
