SwerveNerd
Slalom · Ski · Tracker

Log sets behind the boat.
See trends behind the data.

SwerveNerd is the slalom ski training tracker built for competitive skiers. Capture sets and passes in seconds, then export your data and let AI surface the patterns no spreadsheet would.

SwerveNerd app icon
Download on the App Store
Quick capture

Log every detail in just a few taps

Capture all your set details in less than 30 seconds.

Pass-by-pass detail

Autofill your set for rapid entry or add pass-specific notes

All pass data and notes can be analyzed as your account history grows.

Equipment context

Every fin tweak, every binding swap, captured

Track exactly what impact an equipment change or fin move has on your performance.

Customization

Customize your skier profile

Remove unused line lengths and boat speeds for speedier set logging.

SwerveNerd set screen showing four passes at 34.2 mph through 22, 28, 32 and 35 off, with a hand-typed note on the opener.Pass detail with the line picker open showing 28, 32 and 35 off as colour-coded ropes.Ski settings panel showing Denali C85 with full fin geometry, Reflex bindings, and Masterline rope.Edit Skier screen with country mode, open-rated and masters toggles, and per-line visibility settings.
Quick capture

Log every detail in just a few taps

Capture all your set details in less than 30 seconds.

SwerveNerd set screen showing four passes at 34.2 mph through 22, 28, 32 and 35 off, with a hand-typed note on the opener.
Pass-by-pass detail

Autofill your set for rapid entry or add pass-specific notes

All pass data and notes can be analyzed as your account history grows.

Pass detail with the line picker open showing 28, 32 and 35 off as colour-coded ropes.
Equipment context

Every fin tweak, every binding swap, captured

Track exactly what impact an equipment change or fin move has on your performance.

Ski settings panel showing Denali C85 with full fin geometry, Reflex bindings, and Masterline rope.
Customization

Customize your skier profile

Remove unused line lengths and boat speeds for speedier set logging.

Edit Skier screen with country mode, open-rated and masters toggles, and per-line visibility settings.

Cloud sync, no fuss

Sign in with Apple or Google. Your sets follow you across devices, no manual backups, no spreadsheet to lose.

AI-ready JSON export

One tap dumps your full season as a structured JSON file. Paste it into ChatGPT, Claude, or Gemini and use our prompt recipes to chart the answers.

Notes that survive the season

Set-level and pass-level notes are searchable later — that one tweak you tried in July is still findable in October.

Ready-made prompts for ChatGPT, Claude & Gemini.

Browse the prompt library — best pass over time, equipment comparisons, fin causality, practice vs. tournament splits, and more. Each one comes with the exact JSON-aware filters and follow-up prompts to chart the answer.

Open the prompt library →