[1] He set an Estonian record of 1:27.06, as a relay swimmer, in the 4×50 m freestyle at the 2008 European Short Course Swimming Championships in Rijeka, Croatia.

[2] Haustov is also a member of Kohtla-Järve Water Sport Club in Tallinn, and is coached and trained by Aleksandr Abel.

[3][4] In the 100 m freestyle, Haustov raced to sixth place on the fifth heat and thirty-fifth overall by 0.35 of a second behind Finland's Matti Rajakylä in a time of 51.02.

[6] At the 2008 Summer Olympics in Beijing, Haustov qualified for the second time in the 100 m freestyle by clearing a FINA B-cut of 50.37 from the 2008 European Aquatics Championships in Eindhoven, Netherlands.

[7][8] He challenged seven other swimmers on the fourth heat, including Kenya's Jason Dunford and Papua New Guinea's Ryan Pini, both of whom later reached the butterfly final.