To get started with it make sure you are running Scriptable 1.5.1 (https://testflight.apple.com/join/uN1vTqxk), after that add the Scriptable widget to your Home Screen and select this script in the editing panel. You will need to put in regular, ranked, or league in the parameter field to select which mode you want to display.
Feel free to make changes to this script as you need it. Please don't redistribute without permission. Instead submit a change request to this Github project so everyone can benefit.
All data comes from https://splatoon2.ink/ and Splatoon content Copyright 2015 Nintendo. No copyright or trademark infringement is intended in using Splatoon content.