Drop the GPS file from your SpeedCoach or CoxBox and read your race: the line on the river, the time through every gate, your fastest and slowest 500, and where your time sits against every boat that has raced your event since 2012. Free, nothing to download, no login.
For your own curiosity and your crew's. Nothing here changes, challenges or replaces an official result; the regatta's clock and the regatta's umpires are the record.
No file handy? Try a real U17 4+ from the 2025 Head of the Charles.
Through NK's LiNK Logbook (the app on your phone, or the desktop one). Sync the SpeedCoach GPS or CoxBox GPS so the session appears in the Workout Log, tick the session, choose Export, pick CSV, then Save. Upload that file exactly as it came: do not open it in Excel or Numbers and save it again, because that changes the timestamps and the page can no longer time your race. The file holds every stroke; the race is found inside it from the start and finish lines, so it does not matter how long before or after you were recording. A .fit export from the same app works too, though the CSV carries finer timing.
Every boat that put its line up, one race at a time. Pick the race and the year, then find your event, your club or your bow number. Click a boat to see its whole race.
| Event | Bow | Club | Metres | Time | Line | Time rank |
|---|
Can't find the line you're looking for? If it's your own boat, ask your coach or coxswain to upload the file. Thirty seconds, and your race is here.
Shortest line and fastest time, by discipline. Click a boat to see its whole race.
Races we haven't gated yet. Drop the file, set your own start and finish with the handles, and put it in the library under the race it was. When a race has enough boats in it, we place real gates from the tracks, re-measure every boat already there, and it moves to the official courses.
Yours, and nothing is kept. Drop one file or several. On a known course the real gates apply, so two coxswains down the Charles on a Tuesday get exact lines side by side. Anywhere else, set the start and finish yourself. Download the card or the legs when you're done.
The whole session is shown, switch-on to switch-off. Slide the handles to where the race started and finished; everything recomputes.
Put it in the library and help build the results for every river. It goes in as you trimmed it, labelled unofficial until the race gets its gates. Date comes off the file.
Each file against the first one you dropped. Metres and seconds per leg; green is shorter or faster than the first, orange is longer or slower.
Your line coloured by split. The dotted line is the reference, the best track we hold for this course. Press play.
Split and rate against distance, each a ten-stroke average, with the gates. Hover to move the boat.
From start is how far into the course each gate sits; the leg is the stretch from the previous gate to it. Pink is metres you rowed on that leg that the reference line didn't; green is metres you saved. Click a gate to fly to it and see which arch you took.
| Gate | From start | Leg m | vs ref | Leg time | Split | Rate |
|---|
Pick your event and bow number and you'll see where your line and your time sit against everyone else who's asked. Your result becomes part of the results pool.
Where your gate-to-gate time would have placed against every boat that has raced this event at the Head of the Charles, one year or all of them. Official times, as published.
| Year | You'd be | Boats | Winner | Winner /500 | Median | Conditions |
|---|
Finish times are the regatta's published results. Your time is this page's gate-to-gate time, calibrated to the official clock, with no penalties on your side. Weather is from the Open-Meteo archive at the hour of each race.
The page knows where the Head of the Charles start line and finish line are. It reads the GPS track in your file, finds the moment your boat crosses each line, and times and measures the race between them. The button on the box does not matter. For the cleanest result, start the CoxBox or SpeedCoach well before the start line and stop it after you are through the finish; if the box was started late or stopped early, the page estimates the missing few metres at your own speed and says so in the notes. The gates are calibrated against official race times to within half a second. This is for interest and training only: it is not official timing and it does not overrule, dispute or replace any result published by the regatta.
Please reach out to us at [email protected].