Designed specially for windsurfing/foiling/wing slalom or course racing and practicing. Complete manual available here https://alexolaf.github.io/slalomtimer/ Timer view provide a standart Start timer functionality like - countdown loopable timer - start and pause timer left middle button - reset time (sets back to default minutes from setup) left bottom button - sync timer (zero seconds) right upper button Also provide a prediction on start line crossing (check the Pins menu). If you saved 2 or more pins of start line and started a timer, then at 30 seconds (by default, can change it in settings) the prediction timer start. The app automatically calculate closest distance to the start line defined by 2 nearest pins, takes your current speed and shows predicted time to start line, disrepance to the timer and a hint on should you speed up or slowdown. If timer started in no loop mode (usually for racing mode) 5 seconds after timer zero appwill switch to practice view automatically if your current speed is high enough (set it in setup menu, 30km/h by default). Practice view shows - current speed - session distance travelled - current heart rate - current time - maximum 2seconds average for a previous tack speed. Tacks are detected automatically. Up/down buttons to step through tacks history and right upper to get back to current tack. If timer started and you were switched to practice automatically and speed is low (set it in setup menu, 10km/h by default) app switches back to timer. This allow you get back to the flag boat to start next race, or check the time on a course if you fall :) Arrows are for entertaining and debugging purposes only, shows current heading and average heading. I use it to control tack detection. To use start line prediction save the up and down mark(or pins as you call it) of start line using Save pin in Pins menu. Automatic filtering is happend and only pins more than 10 meters apart will be added. So it shows overall/filtered pins added. Only 2 nearest pins wil be chosen as start line. Setup menu for speed/distance units (km/h, knots, kilometers and sea miles), color theme (black/white), timer program (from 1 up 12 minutes countdown), looping timer (usefull for training sessions), timer and tracker (practice view) threshold speeds, timer prediction interval (seconds to start to prediction info appear) GPS status shows current gps quality and accurance. Gear menu let you set you gear used for the session, wind and your impressions like how much powered you were and ride comfort. Activity recording is started at application start automatically and saved on exit. Finaly the summary for the session shown.

6.6 Show current tack info in history Experimenting with a speed layout for semioctagon device - swapped current speed and prev tack speed. 6.5 Patrik sails database corrected a bit. 6.4 free up memory before entering gear database to let older devices use it with memory limitations 6.2 Useless help menu removed Got rid of memory leak 6.1 Help menu added, it opens the manual on the phone via Communication request, and requires a Communication permission now 6.0 More vector approach in timer and practice view, really HUGE seconds in timer whilst last minute ticking, some more devices supported (all devices with 5 buttons and round or semioctagon screen and api level 3.4 or higher). 5.6 Utilize vector drawing for round devices with vector font support in practice view better layout of practice view for 260x260 devices with no vector fonts 5.5 Minor fix 5.4 Added seven segment display, so devices with no vector fonts can now show numbers of arbitrary size. Fenix 6 timer view use it to show minutes and seconds. Reworked and simplified pins menu (it named Markers now), explicitly set boat and pin location 5.3 Added support for round 416x416 devices. 96 models supported from now. 5.2 Pins locations saved to fit file for further analysis 5.0 Updated gear database Added wing boards, wing foils, wind foils to the database Better support for Fenix 6 devices (hopefully) 4.6 Minor update for debug purposes 4.3 Added jybe speed analisys for the practice view 4.2 Timer crash fixed 4.1 Start session from first GPS fix Do not ask for session save if no session Improved tracker layout for round 260x260 devices Better tack detection, filter out at low speeds