First of all this is nothing against Ivo, i like him, and he got the record for sure. No doubt about that. But how do you feel about that serve? i am sure most guys saw that on youtube or everywhere else and i think it is really weird that his fastest serve ever came in DC doubles - first of all there were some talks about DC speed guns - maybe they work differently, than maybe they used different balls and secondly you gonna hit your fastest serve in doubles? where you can hit - only little chance but still can hit your own teammate? There was serve contest between Ivo and Milos in San Jose and Ivo didn´t even came close in speed numbers to Milos, maybe he wasn´t even trying, but generally when you look on last slams - speed of serves Ivo is up there all the time among top 5, but his fastest serve are not even faster than Isner´s , Raonic´s, Ljubicic´s - look on RG, USO, WIM, AO pages statistics - he definetaly is not serving as hard as few years ago. So how do you feel about that serve? are you 100% sure it was fastest ever? because that speed gun machine showed 251?