Three LengthsAlpha

See where your race was won and lost.

Drop in your tracks from Vakaros, Garmin, GPX and GoPro. See the ground you lost, and where. Measured, not guessed.

Add your races

Club Sunday, a sample race

Sailing the sample race

Climbed from about 11th to 8th Started about 11th of 12. 3 on beat 1 and 1 on run 1. Lost no more than 1 anywhere.

  1. Gun12th (11th–12th)
  2. A minute in11th (9th–11th)
  3. Mark 18th
  4. Mark 27th
  5. Mark 38th
  6. Finish8thof 12

Finished ahead of you.

Leg by leg

  • You
  • Fleet middle
  • 80% of the fleet

  1. 11th (9th–11th) a minute in

    −21 m (± 11 m) against the fleet’s middle; vs Boat E +13 m (± 11 m).

  2. +1 to +3 places (11th → 8th)

    +8 m (± 11 m) against the fleet’s middle; vs Boat E −9 m (± 11 m).

  3. +1 place (8th → 7th)

    +5 m (± 6 m) against the fleet’s middle; vs Boat E +9 m (± 8 m).

  4. −1 place (7th → 8th)

    −14 m (± 6 m) against the fleet’s middle; vs Boat E −28 m (± 9 m).

  5. Held 8th

    −5 m (± 5 m) against the fleet’s middle; vs Boat E −2 m (± 7 m).

Measured by Telltale Alfa

Every number says how sure it is

Every leg is measured with its ±, and called only where it is clear.

Your data is yours

Download every file you add, any time. Free, and never behind a plan.

Draw the situation. Show your fleet.

Place the boats and the marks, position by position, like a rules diagram. Send the link to your fleet, or walk your sailors through it.

Open the whiteboard

Watch a race

A simulated fleet in a breeze that shifts and puffs, an umpire calling what it sees, and the same debrief at the finish.