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Click the hamburger menu (3 lines) at the top right

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Enter your summoner name in the search bar and hit search

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Select your server and click it — you'll be taken to that account's stats page

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In the section labeled "Personal Rating," click the ∨ button at the bottom right

Then you can see your account's tier graph like this.
It doesn't seem to let you zoom in/out by day/week/month like OP.GG does, but it has the advantage of showing all your past season records too, which you can't see on OP.GG.
Since OP.GG removed the tier graph anyway, you'll have to use this if you want to see one.
Hope everyone finds it useful.

ngl this site is cracked for match history, facts
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Why is everything showing up in English for me?
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