Mordekaiser. He's going to harass from range all day, and if UD does make a run at him, Morde's going to really make him pay for it. That is until UD's jungle shows up.

Corki does incredibly well top against a lot of the "immovable object" type tops (Udyr, Yorick, Lee Sin, Riven) because of his true damage, extreme range, escape, and armor shred.

WTF? People saying Yorick counters Udyr? Other way around...

All Udyr has to do is level turtle first and buy a wriggles and he will be able to tank Yorick all day and free farm...

No... real counters to Udyr top are Riven and Olaf.

teemo oh the amazing yordle. worst case scenerio nunu top/yorick forces a draw

I would say anyone with ranged harrass and the ability to kite. Rumble, Vlad, teemo, kayle, jayce, but you could also go brusier vs brusier and play jax or irelia

Anything with poke to be honest. If Udyr can't get close then he can't use his CC or his damage, which means it's difficult for him to facilitate any type of gank with a jungler unless that jungler is OP, like Lee Sin or Alistar or J4.

Picking champions that are close range farmers like Nasus and Singed get pretty much destroyed by Udyr due to the fact that Udyr beats these types of champions both in damage, and in sustain.

The thing that makes Udyr hard to beat is the fact that his Q does Magic damage, while also allowing you to land more physical attacks. From this stand point, Udyr can be considered a hybrid due to the massive MD from the Q proc, and then the hundreds of damage from auto attacks which will follow. This makes building against udyr trickly.

My advice, play someone with poke, because attempting to use a melee champion to out sustain Udyr would be much too difficult.

Range.

Elise I found is very good against him and Irelia
Vlad
Rumble