Roscoe Tanner served 29 aces in nearly 2 1/2 hours to beat Brian Teacher, 6-3, 3-6, 6-3, 6-7, 6-3, today in the men's singles final of the New South Wales Open tennis championship.

In the women's final, Evonne Goolagong beat Sue Barker, 6-2, 6-3, capturing her fourth New South Wales title.

"That was as fast as I've ever served," said Tanner, who in one game served four aces, the fourth time in his career he has accomplished that feat.

He qualified to play the other top seven players in the $400,000 Grand Prix Masters tournament in New York next month.

An eerie gloom hung over Sydney as brush fires smouldered to the west of fhe city.

After Teacher won the fourth set, tying the match at two sets all, Tanner asked tournament referee Bill Gilmour if it was becoming too dark to continue because of smoke from the fires.

Gilmour said he thought the light was strange.

Teacher, 22, who received a tumultous ovation after his defeat, said he tired in the fifth set.

"Especially my legs - I couldn't get to the net as quickly as I wanted to," he added.

He attributed his defeat to Tanner's big serves.

"It's not much fun standing there watching the balls whiz by," Teacher said.

Tanner did not serve an ace in the second set but served five in winning the third. He lost the fourth in a tie creaker that went to 7-5.

In the fifth, Teacher double-faulted in the eighth game and then a poor volley from Teacher and a magnificent forehand passing shot from Tanner gave Tanner the vital break for a 5-3 lead.

His serve, reowned as the fastest in the world, did not let him down as he fired his 28th and 29th aces, taking the set and the match.