Kovalik can really play, so don't be too hard on Machado.
Machado is Machado, when he was on his top he was the best player on Challenger Circuit by far. Stupid conditions and lack of rythm, but Kovalik had more chances with a faster court.
PLEASE VISIT ROUTE TO THE TOP!
Singles rank: 248
Best tournaments: QF Fut Vigo, 2nd round CH Tampere
Doubles rank: 187
Best tournaments: Semi-finals CH Tampere and CH Pozoblanco (w/volc0mizado), Title CH Beijing (w/lolada_4), 2nd round Roland Garros (w/ Mesut Ozil)