Plymouth, Falmouth & Langstone marks added to JettyMap

JettyMap can use shared marks as well as club-specific race marks where clubs share their sailing area.

Chichester and Portsmouth Harbours, plus the Solent sea marks are already mapped. Now three new areas in the UK – Plymouth Sound, Falmouth and Langstone Harbour have also been added.

You can see the shared marks when you select any sailing club in that area.

If you would like your club to be next, let us know – it can be anywhere in the world.

New version of Boat Timer released

The latest version of Boat Timer is now available. This is a significant upgrade that introduces Cloud Services sync with online race entry and results, plus many other features such as a simpler screen for adding new entries and more obvious buttons on the race grid.

A guide (PDF) to the new version is on the main Boat Timer page.

If you open the app the upgrade will be applied and you should see the new version the second time you open it.

**However** often browsers will cache the old version and – depending on the browser settings – it may take several hours before you see the upgrade. You can wait and the upgrade will eventually appear or you can clear the part of the cache that affects this.

In Chrome, the relevant part is in Chrome Settings – Privacy & Security – Clear Browsing Data – Cached Images & Files.

The Chrome Settings option can be found from the three dots menu (top right)

The new version number is 21045 and you should see this near the top of the page if you press the Options button.

Boat Timer Upgrade 2021

The new Boat Timer update for 2021 will be released later this week.

Upgrades are automatic. When you open the app after the update it is downloaded in the background. The second time you open, the upgraded app will be available.

This release is a significant upgrade bringing a number of new features, including the new Cloud Services for online entries and results.

A detailed guide to this release is available on the main Boat Timer page. Here is a summary of some of the new features:

Cloud Services

  • App Sync – Boat Timer data is saved to the cloud
  • Online Entry – Sailors can enter races online
  • Online Results – Race and Series/Event results immediately available on the web

Cloud Services will be available to sailing clubs for £25 per month (or equivalent in local currency).

Boat Timer

  • Auto-Add Online Entry Requests – add online entries to the race
  • Average Points – average points can be assigned for series/event results
  • Auto-Sync – sync to the cloud can be manual or automatic
  • Event Options – scoring system and race discards controls for online results tables

JettyMap released

JettyMapThe sailing club mapping app JettyMap is now available. It is an app for phones, laptops and tablets that lets clubs add race marks, start/finish lines, race courses & notices to their map, plus labels and directions to help visitors find the car park, launching area and other facilities.

Boat Timer joins RestartSailing technology webinars

If you have not seen RestartSailing yet, it is an organisation to support sailing clubs during and after the Covid 19 restrictions. From the site they say:

“RestartSailing came together at the start of the Covid 19 pandemic to give a platform for the sailing community to work together and help restart sailing in these difficult times. It has been encouraging to see sailing activity re-establishing itself after lockdown measures were eased.”

I was invited to present Boat Timer at the RestartSailing (race entry, payment processing, track and trace) webinars on November 18th 2020, so if you missed any of it here’s the presentation and videos from the event:

Boat Timer slides from RestartSailing webinars

Boat Timer video 1 – Getting Started

Boat Timer video 2 – Recording Lap Times

Boat Timer video 3 – Finish Timing & Results

Boat Timer and the Weymouth rating system

The Boat Timer app works out corrected times for any rating system. But not all rating systems use the same method to do the calculation, so a club in New Zealand using the Weymouth system got in touch to ask if it could be used with Boat Timer.

The Weymouth rating numbers are ratios, so a Laser has a Weymouth number of 0.91 and a slower boat such as a Laser 4.7 has a Weymouth number of 0.87. This makes calculating a corrected time simple as you can multiply the Weymouth number by the time the boat took to complete the race to get a corrected time.

As Boat Timer uses a different method based on UK ratings systems to calculate the corrected time, the Weymouth number has to be converted. Fortunately this is not hard; dividing 1000 by the Weymouth number gives you a rating number that works in the app.

But why 1000?

UK Rating Numbers

In the UK, most races use the Portsmouth Yardstick (PY) though there are others in use; the Great Lakes system for example. These two use a baseline of 1000, by which I mean boats are given a number that is above 1000 for slower boats and below 1000 for faster ones and that number is used to calculate a change to the boat’s finish time.

The formula for these baseline 1000 systems is:

e / r * 1000 = c


e is elapsed time in seconds (the time a boat took to complete the race)
r is the rating number
c is the corrected time in seconds (the time you use for scoring the race)

American Rating Numbers

In the USA, the US Sailing D-PN system was based on the UK PY system but modified for their own racing conditions and classes. It is a baseline 100 system so rating numbers typically range from 80 for a fast boat to 120 for a slow one. Interestingly the USA system has the option of using different ratings for different wind strengths. It is fair to say some types of boat are better in lighter winds and some better in stronger, so the D-PN table has a general D-PN number similar to PY but also has D-PN1, D-PN2 D-PN3 and D-PN4 for the different wind strengths. So you can choose whether to use the all-weather number or go for a fairer number for the race conditions.

As Boat Timer assumes a baseline 1000 system and D-PN is a baseline 100 system, using a D-PN number in Boat Timer requires converting it by multiplying the D-PN rating by 10.

Creating Rating Systems In Boat Timer

At present, Boat Timer has the PY and Great Lakes rating systems in the app, though more will be added in the future. But it is possible to add your own system.

In the Options – Classes menu you can open a class document (for example, the Laser class) like this:

To add a new system, fill in the name of the system (eg. Weymouth or D-PN) in the New Rating Type box, add the Laser number in the Rating Value box and press the Update Class button.

When you open other classes, you will see the new system in the options for Rating Type. Initially, any class you have not edited will have a rating value of 1000 so it is necessary to add values for the classes in your races. Don’t forget to convert the rating number to a value that works in Boat Timer.

And finally in your race, select the new Rating System for each start and your rating system will be used to produce results on corrected time:

Boat Timer update – version 20237

Boat Timer has been updated to version 20237. This update adds Cloud Services – the ability to synchronise Boat Timer information with a internet-based database.

Using Cloud Services means that the race progress and results can be seen on the Boat Timer web site, bringing real-time race information to competitors and spectators. It also makes it easier for the race team to use a different device for Boat Timer as they can get all the latest race information on to the new device from the cloud.

In the future, Cloud Services will be expanded to allow competitors to sign on to a race from their laptop or mobile device so the race team will see race entries appear in Boat Timer as they are added.

This version also adds lap times to results. There is a new tick box in the Boat Timer results page called “Include Lap Times”. This shows the average lap time for each boat in the app’s results table. When exporting results to CSV or HTML files, all the lap times are added as extra columns to allow more in-depth analysis of lap times.

As always, the Boat Timer app is updated automatically to the new version when you next connect it to the internet.