kTool is a web-based sailing performance analysis platform that automatically detects maneuvers, calculates wind direction from GPS tracks, and synchronizes video with sensor data. It turns raw session recordings into structured debriefs, helping sailors and coaches identify where time is gained or lost without requiring wind instruments or manual data processing.
Funding
Funding not disclosed
Founders
Product
Problem
Sailors and coaches often leave a session with hours of GPS tracks and video footage, but extracting actionable insights requires manually identifying maneuvers, estimating wind conditions, and cross-referencing footage with data. Traditional analysis tools depend on wind sensors or manual input, which many sailors don't have, and coaches can only observe a fraction of the action in real time, leaving most of the session unreviewed.
Solution
kTool is a browser-based sailing performance analysis platform that automatically processes GPS tracks to detect tacks, gybes, and straight-line sections, while estimating wind direction from the track geometry alone—no wind hardware required. The platform synchronizes onboard, drone, or coach-boat video with speed, heading, VMG, and maneuver data on a single timeline, allowing users to review technique and tactics frame by frame. Coaches can overlay multiple boats on one screen, compare a sailor's maneuver against their sharpest 25%, and share sessions for remote or group debriefs. The system is designed to be used immediately after upload, with automatic session layout and no manual setup.
Target Audience
Primary users are sailing coaches, performance analysts, and competitive sailors at club through Olympic levels who need to review sessions systematically and turn data into coaching decisions.
Features
- Automatic wind direction estimation from GPS track geometry, eliminating the need for wind instruments or manual wind input
- Automated maneuver detection and timing for tacks, gybes, and mark roundings, with the ability to jump directly to specific moments
- Multi-boat track and metric overlay for fleet comparison, allowing side-by-side analysis of speed, angle, height, and VMG
- Video synchronization for onboard, drone, and coach-boat footage, aligned to the same timeline as the performance data
- Maneuver analysis comparing any tack or gybe against the sailor's sharpest 25% to identify time loss during entry, turn, acceleration, and recovery
- Straight-line performance analysis across legs, with the ability to compare boats, sections, or time ranges
- Cloud-based session sharing for remote or group debriefs, with one account covering an entire fleet
- Anonymized sensor data used to train and improve machine learning models for algorithm development