Australian Scott Draper reached the Australian Open mixed doubles final with Samantha Stosur just hours after making his professional golf debut.
The 30-year-old carded 79 in the first round of the Victorian Open on Friday before returning to Melbourne Park.
Draper, showing no effects from his exertions on the golf course, and Stosur beat Andy Ram and Conchita Martinez 7-5 6-3 in the last four.
Meanwhile, veteran Martina Navratilova and Max Mirnyi reached the semi-finals.
The 48-year-old kept her chase for her 59th Grand Slam title on course in Melbourne.
Navratilova and Belarussian Mirnyi combined to see off the brother-sister team of Wayne and Cara Black 7-5 6-4.
Draper will be available to face his eventual title contenders in Sunday's final - though if he had performed better on the golf course he would have faced a tricky dilemma.
The third round of the Victorian Open takes place on the same day but the Australian is unlikely to make the cut.
"I suppose it's a good thing that I won't be in contention here on Sunday," said Draper, who plays tennis left-handed but golf right-handed.
"All in all it's a bit disappointing but now I can concentrate on tennis."