extraction of splinterland winrates possible ? (cards and splinters)

hello fellow splinterland players,

i am new to the game and i thought about tracking the outcome of my games to figure out which splinter to focus on in the future.

my questions are:

a) is there a way to look into the winrate of the individual splinters i have been playing?
b) is there even a way to look into the winrate of individual cards i am playing?

as a reference, i am posting this spreadsheet, which exists for certain decks to track their performance

(image source: https://cdn.cardsrealm.com)

maybe there is a similar site for splinterlands that i have missed and i would appreciate any leads!

-thegreatkaspi