Two weeks after snagging a win in the pairs division at the Port to Port mountain bike event, the Harris family have added more silverware to their trophy cabinet.
Holly and her father David were victorious at the Mountain Bike Australia National Marathon Championships in Brisbane on Sunday.
Since her step up into the elite women's category, Holly has been on the podium numerous times, winning silver and just missing out on the elusive green and gold champion jersey.
Sunday's triumph was a historic one in her career.
"It is my first elite jersey so a very special one," Holly said.
"Nothing comes easy, I have had so many years where I have come second so to finish it off was really good."
But she was as equally proud to have her father win his masters division.
"He usually wins more races than I do," she said.
"He had a really good ride and he is really fit at the moment so it was really good to see him take the win.
"The masters is definitely a lot more competitive than a lot people realise."
Holly finished the 94 kilometre ride 20 seconds in front of experienced marathon racer Cristy Henderson.
Holly's success on the track in previous years has often come in the shorter style Cross Country Olympic events which made the success all the more sweet for her.
"I was a bit unsure to how I would go, being a little bit longer than what I have been doing," she said.
"I definitely wanted to win but I had been through a bit of a lull lately and I wasn't sure how I would go so I was very surprised but very happy to take the win."
She initially started training for the longer marathon events to build up her endurance.
"I used to think that [Cross Country Olympic] was where my skill sort of was but I have just been doing a lot of marathons lately and they seem to be going pretty well," she said.
"I have been selected on the road this year to ride for Specialized women's racing so I started doing longer ks to prepare for that.
"I had also I have been training training really hard for cross country national championships and it didn't really go how I planned.
"I think marathons are a good way to get away from that and just freshen up my mind a little bit as well."