I just stumbled on to Google app scripts recently, and it's awesome for automating stuff on WL and doing basic tasks. You could theoretically build simple CLOTs(with no UI). You just need to know some basic JavaScript.

I'm sharing a script I wrote to automate score-keeping for RR tournaments. It keeps track of wins and losses for every team. Just replace line 6 with your email and token, set up a sheet with a similar layout for tournaments and you're good to go. You can get Google to run this on your behalf on a time-based trigger.

This is just an example. You can setup any kind of league on WL with very less upkeep! Please take backups of your data before you try it out, as I take no responsibility for any bugs(although it is well tested :p)

Script: https://goo.gl/mXA1QS
Example Usage: https://goo.gl/qZkBVa

Thank ya

This is member-only for it to run successfully, right? I saw that it was using APIs (which are member-only).

You might want to use === instead of == and !== instead of != to prevent some possible bugs.

Yeah all WL APIs are restricted to members only.

The key problem of that is in my opinion, that it is very slow(every write or read of a table from drive takes around 1sec) so you need to use it in combination with an other system like firebase for web triggers and webpage design. But for other stuff like extracting the data it is very good.

Yeah. It is a bit slow. But since my WL tasks aren't time critical, I usually don't mind.

Edited 11/23/2017 06:39:50

Would it be possible to build Google Sheets add-ons using similar code to that? Just asking for someone's e-mail, API token, and letting them run a UI-less CLOT?

I haven't done much with Google Apps Script, so I don't know how their add-ons work and if there'd be anything special involved in this case.

I haven't done it myself, but looks like that should be doable(assuming the user is a member of course)

I'm sharing a script I wrote to automate score-keeping for RR tournaments

Don't you plan to write one for single elimination tourneys too? ;)