Three-time Grand Slam champion Stan Wawrinka, steadily rebuilding his career after undergoing two knee operations, reached his first semi-final since a year ago s Roland Garros when he downed Serbia s Viktor Troicki 6-1, 7-6 (7/3) at the Sofia Open on Friday.
Basic, whose stunning triumph included a win over Stan Wawrinka in the semi-final stage, started his week in the qualification rounds, where he knocked out Bulgarian wild-card Alexander Lazov, followed by his fellow countryman Tomislav Brkic.
After becoming just the second player from Bosnia and Herzegovina to win an ATP World Tour title, after Damir Dzumhur, Basic rises 52 places to a career-high No. 77 in the latest edition of the ATP Rankings.
The Swiss three-time Grand Slam champion, still recovering from injury, was a last-minute addition to the Sofia field, replacing home favourite and last year's title victor Grigor Dimitrov, who pulled out before the draw, citing a nagging injury sustained at the Australian Open.
"I'm improving every day, I'm moving better and I'm serving better".
Unheralded Roberto Carballes Baena of Spain captured his maiden ATP title, winning the season's opening clay court event in Quito by seeing off compatriot Albert Ramos Vinolas, the second seed, 6-3, 4-6, 6-4.
Thus Basic inherited Grigor Dimitrov as a champion in Sofia. The Rio de Janeiro resident defeated No. 3 seed Gael Monfils in the quarter-finals and No. 5 seed Horacio Zeballos in the first round. With his great success he will be entering top 100 for the first time in his career.