Strava TSS Calculator

2022-05-04 - Fixed so the correct date is shown in the dashboard, and the scrolling between dates now work as expected.
2020-08-26 - Added the ability to see laps for every activity. So now it is possible to dig even further down the rabbit hole for more data.
2020-04-19 - Added a donation page to help me keep developing and maintaining this application.
2020-04-06 - Minor fixes for updating TSS based on NP in the Week TSS field and I also added a new image for the login page.
2020-03-31 - When you choose to see the detailed infomation of your activity the graph will also update and show your TSS based on NP and your weekly TSS is also pdated with the added TSS based on NP. The reason why the data is not shown from the beginning is because I want to minimize the API calls.
2019-10-15 - Added support for oath2.0 and Stravas new authentication method with short lived tokens and new application scopes. Unfortunately that means tha once more all users need to authentication Strava TSS Calculator as a trusted application.
2019-05-31 - Added stats about Power to Weight ratio above and below threshold. I also added more random images on the login page
2019-01-16 - Now it is possible to go back to previous years data. Don't forget to logout and back in again for this update to work.
2018-11-13 - Randomized background images on the login page. Not a big update but I felt it was time to do something.
2018-06-20 - Many have asked the question why Strava TSS Calculators TSS-number is so different compared to for example Gamin Connect. The answer is that the app calculates your TSS on the values from Strava, and because Strava uses it's own parameter Weighted Avg Power instead of NP the numbers can differentiate a bit. Then you probably wonder why I don't use NP to calculate the TSS in the diagram, the short answer is that it takes one call to the API for every high detailed activity instead of one call for 20 low detailed activity. The big difference is if you get back a stream of watt data or not, and you need the stream of watt data to calculate NP. Strava restricts API calls to 600 calls every 15 min, and a total of 30k calls every day. I solved the problem by presenting a TSS value based on NP if you click on a activity in your list of activities. There you will find more details about your ride.
2018-06-12 - Now you can dig down even further in the numbers from your training session! I Added more statistics fore every activity, and you find it below the chart. Please log out and in again for the new functions.
2018-05-09 - Fixed issue where it was impossible to loading more then two weeks of data, thanks Krystian for finding the bug. Please log out and in again for the fix to take effect.
2018-04-18 - Big thanks to Baxter who detected a bug in the way TSS is calculated. Now the TSS is only calculated for moving time and not for the whole duration of the activity.
2018-04-11 - Added a contact form, so please don't hesitate to contact me if you have any questions or ideas.
2018-03-23 - Major overhaul of the landing page, and I also started to build a contact form that will be released soon.
2018-03-21 - Fixed small bug that forced users to refresh the page to update TSS under user info.
2018-01-26 - Now if you are not Strava premium user you will be prompted to insert your FTP for the application to work and there is now also a option to change your FTP by clicking on the FTP-number. When you log out all data will be deleted.
2018-01-19 - Quick fix for ending loop on non Strava premium users. Working on a better solution.
2017-12-27 - Fix bug where you needed to logout to reload and see newly saved data to Strava.