Tracking & Replay

Live & Replay Viewer

Watch ongoing races and replay finished sessions on the web: view course marks, boat trails, real-time leg rankings, timeline scrubbing, and distance measurement.

1. Race Map & Live Leaderboard

Open the race viewer webpage to see the entire course and fleet positions in real time:

Live Broadcast & Replay Viewer LayoutMap · Leaderboard · Replay Scrubber
RACE 03TWD: 045° @ 12.4 kts
1x / 5x / 10xLEADERBOARD
Mark 1 (Windward)
Start Line
▲ CHN 21887.2 kts
▲ HKG 12086.9 kts
RANK · FLEETGAP
1. CHN 2188LEADER
2. HKG 1208+42m
3. JPN 4402+115m
Scrub timeline to replay start/roundings or snap to live raceLIVE / REPLAY
Fig 1: Web viewer layout with course marks, trails, leaderboard and replay scrubber
  1. 01
    Course marks & wind indicator: displays the start line, rounding marks, finish line, and True Wind Direction (TWD) arrow.
  2. 02
    Boat positions & trails: each boat is shown with its sail number, current speed (SOG), heading, and a color-coded trail showing recent movement and tacks.
  3. 03
    Live Leaderboard & boat spotlight: the fleet list ranks boats dynamically along the current leg, showing distance gaps behind the leader. Click any boat to lock the camera onto it.
Fleet leaderboard with live SOG, COG and boat spotlight
Fig 2: Fleet list with live speed, heading and single-boat spotlight

2. Timeline Scrubber & Multi-Speed Replay

Whether a race is currently in progress or already finished, you can use the bottom timeline bar to review any moment:

  1. 01
    Drag timeline scrubber: drag the progress bar to jump directly to the start sequence, mark roundings, or finish line crossings.
  2. 02
    Playback speeds (1x–20x): switch between 1x, 2x, 5x, 10x, and 20x playback speeds to review a 60-minute race in a few minutes.
  3. 03
    Snap back to LIVE: during an ongoing race, click the LIVE button to return immediately to real-time positions.
Bottom timeline scrubber and playback speed controls
Fig 3: Timeline scrubber and playback speed controls

3. Mark Zoom, Distance Ruler & Big Screen Display

  1. 01
    High-precision mark zoom: zoom in on crowded mark roundings or start lines to inspect boat spacing and inside/outside overlaps.
  2. 02
    Distance measurement ruler: click the ruler tool to measure the exact distance in metres or nautical miles between any two boats or across the start line.
  3. 03
    Fullscreen display mode: press F11 or open fullscreen mode to display the live race on clubhouse TV screens.
Mark rounding zoom view
Fig 4.1: Mark rounding zoom view
Distance measurement tool on chart
Fig 4.2: On-water distance measurement ruler