Kathy O'Hara claimed another slice of history when she became the first female apprentice in NSW to outride her claim when she partnered We'll See to victory at Warwick Farm.

The 20-year-old is the only woman to win the Sydney apprentices' title which she did in the 2004-05 season.

Sydney and Melbourne are regarded as the toughest arenas in Australia with Michelle Payne the only woman in Victoria to match O'Hara's feat.

O'Hara said she was relieved to get her landmark 60th win in the Randwick Betting Auditorium Hcp (1200m) especially with her apprenticeship ending on Sunday.

But she was forced to fight hard for the victory with the John Hawkes-trained Circled finishing within a long neck of the $2.60 favourite We'll See after a battle over the last 100 metres.

"It's a great relief to finally get it done, especially after I've had seven seconds in the past 40 something starts," O'Hara said.

Even more pleasing for O'Hara was the fact she rode her historic winner for one of her biggest allies, trainer Guy Walter.

"Guy and Wendy (Walter) are great people who have given me a lot of support in the 18 months I've been in Sydney," O'Hara said.

The multiple Group One winning trainer was thrilled to see Kathy achieve the milestone.

"It's a great achievement from a brilliant young rider who has a bright future if she continues to work hard," Walter said.

"I'm just glad she rides for my stable, because she's ridden plenty of winners for us."

"She rode Wild Iris in a Caulfield Cup and came second in the Epsom on Johan's Toy so the occasion doesn't overwhelm her."

O'Hara was just over a length short of beating Clare Lindop as the first woman to ride a Group One winner when Johan's Toy ran second to Desert War in the 2005 Epsom Handicap.

Former champion jockey and now trainer Kevin Moses also sang the praises of O'Hara who only began riding regularly in Sydney from April last year after moving from Dubbo.

"That's a great achievement, she's a terrific young rider and has ridden plenty of winners for me, she's got a lot of talent," Moses said.

Three-time Melbourne Cup winning jockey Glen Boss arrived at Warwick Farm just minutes before O'Hara's landmark victory and was quick to applaud the achievement.

"What a great effort," Boss said.

"Kathy rides against good company all the time and she always holds her own."

"Now that she's outridden her claim the hard work really begins but with her talent and the way she keeps improving with every ride, I'm sure that she'll handle herself well."

O'Hara is aware of the challenges she will face in the next stage of her career and is looking forward them.

"I've moved to Sydney full time now and so it's just a matter of working hard, picking up plenty of rides and making the most of my opportunities," she said.

Her jubilation at reaching her goal was tempered by Racing NSW stewards who fined her $200 for celebrating the victory by punching the air as she went past the post on We'll See.

Apprentice riders begin with a three kilo claim in the city which is reduced to two kilos after 20 winners and 1-1/2 kilos after 40 winners in town.

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