BRISBANE Jan 25 AAP - A new look Tegan Harrison repaid an old debt when she helped rookie trainer Lacey Morrison score her biggest win to date at Eagle Farm on Saturday.

Harrison led all the way on Tukiyo ($14) to beat Avaladyluck ($10) by a short head with a half neck to Darlin' Jules ($31) in the Listed $100,000 Nudgee Quality (1200m).

It was a daring ride by Harrison, who was sporting orange hair for the first time, on a day when most punters were ready to run up the white flag after Carn ($81) and Hot Saga ($31) won two previous races.

Morrison was one of Queensland's best jockeys before she was badly injured in a fall in 2008 and she did resume riding until 2012.

However, another fall last year saw Morrison take up training in October and she has now had eight winners from about 30 starters.

During her spell from riding after 2008 she worked as a steward and helped mentor young women riders.

Harrison revealed that she had been one of those young riders.

"When I first started I wasn't doing much right and Lacey took me aside and helped me with things. I owed her a debt and hopefully this repaid some of it," said Harrison, who won last year's Brisbane apprentice's title.

Morrison has done a great job with Tukiyo who was once rated one of Brisbane better three-year-olds.

"She was considered pretty smart but a few things went wrong. She is back on track now," Morrison said.

Tukiyo is now likely to chase open company 1600m races in coming weeks.

Meanwhile, the expected match race between three-year-olds Secret Harmony and Sea Red in the Bundaberg Distilling Hcp (1600m) proved a fizzer.

Secret Harmony ran fourth and Sea Red was seventh behind improving Hot Saga.

Trainer Kelly Schweida said he was happy with Secret Harmony's run as he had been forced back through the field.

"When he did get clear he couldn't accelerate under his 59kgs," Schweida said.

Trainer Rob Heathcote said he put Sea Red's failure down to the wet track.

Hot Saga had been very unlucky when second at the Gold Coast on January 4 and had improved since, according to trainer Jack Duncan.