Yesod was already in round two which happened the next day:

http://www.techempower.com/blog/2013/04/05/frameworks-round-2

I have seen a mention of a round 4 planned(on google+?), but have not seen the results for round 3.

Patrick

On Wednesday, April 17, 2013 9:35:14 AM UTC-5, Jeffrey Shaw wrote:
I was excited to see if Warp or Snap was included, but I was sad to see they weren't. If I find time someday, I'll add benchmarks for them, but it will be a long time. If anyone else wants to take a stab at it, that'd be awesome!

http://www.techempower.com/blog/2013/03/28/framework-benchmarks/

Jeff