Any matchup websites?

I'm trying to play off-roles but I lose a lot due to not understanding what to build/max etc. Is there any good website which would show Challenger builds in specific matchups? For example, if I play Irelia vs Jax, I'm pretty sure this matchup has appeared in top tier games over the last few months at least, and probably Irelia won in some of the games.

Please don't suggest probuilds.net unless you know how to filter "Champ A vs Champ B". Filtering Irelia only and seeing 5 builds against random champs does not help. I'm interested in the specific matchup, not how Irelia itemization vs Rumble looks like. and checking last xxx games to find one with Jax is impossible pre-match in 2-3 minutes.