Australian tennis battler Marinko Matosevic has reached his maiden ATP Tour final in Florida.

The 26-year-old qualifier scored a 5-7 6-4 7-6 (9-7) semi-final victory on Saturday over Israeli Dudi Sela at the Delray Beach International.

Matosevic, who is riding a 12-match hot streak after also winning a Challenger event in Queensland last month, will face either American top seed John Isner or South African Kevin Anderson in Sunday’s final (Monday AEDT).

Seven of those wins have come this week after Matosevic survived three qualifying rounds just to make the main draw of the $US442,500 ($A410,000) tournament.

Win or lose the final, the Victorian is guaranteed the biggest cheque of his career – at least $US39,000 ($A36,250) for reaching the title match.

Matosevic will also enjoy big rankings jump from his current standing at No.173 in the world.

It was a nervy finish for Matosevic who was broken when serving for the match and also double-faulted on match-point in the tie-break but he held his nerve to eventually triumph.