March 24 (Reuters) - Karolina Muchova ⁠needed all of her experience to hold off rising Canadian ⁠teenager Victoria Mboko 7-5 7-6(5) on Tuesday, booking a place ‌in her first Miami Open semi-final in a match she admitted could have gone either way.

The 29-year-old Czech secured her fifth WTA 1000 semi-final berth in a hard-fought ​contest that lasted one hour and 47 minutes.

"It ⁠was very close, basically ⁠one point at the end. It can always change in tennis. I'm ⁠just ‌very grateful I was able to win the last point," Muchova said.

The opening set was a tight affair, remaining on ⁠serve until 5-4 when Muchova found herself in trouble ​at 0-30 before ‌reeling off four consecutive points to level at five games ⁠all.

She then capitalised ​on a shaky service game from World number nine Mboko to edge ahead, eventually converting on her third set point to take the opener.

The second ⁠set proved no easier, with both players ​holding serve all the way to a tiebreak. Muchova seized control with an early mini-break and kept her nerve to close out the match.

"She's ⁠an amazing player. Every time you play a top-10 player you go on the court and you don't know who's gonna win, who's gonna lose," she added. "I tried to stay focused and stay aggressive."