The Albion Park star continued her stunning run of form in Berlin early Monday morning (AEST), breaking Linden Hall's Australian record in the 1500m event at the famed ISTAF meet.

Hull finished third in a time of 4:00.42, behind Great Britain pair Laura Muir and Laura Weightman, to better Hall's mark by 0.44 seconds.

The performance comes just a month after she shattered the national 5000m mark at the Monaco Diamond League event.

Hull is the first Australian woman in 23 years to hold both records simultaneously. She also holds the 1500m indoor record, set in Boston in January.

Not content with two outdoor marks, the US-based athlete is now chasing the Australian 3000m record.

She is set to contest the event at the Doha Diamond League meet on Friday September 25.

The current national record is held by Benita Willis who ran a time of 8:38.06 in 2003. Hull ran an unofficial 8:41.8 in driving rain in July prior to travelling overseas.

Having spent much of the year watching his daughter train at home due to travel restrictions, Jessica's father Simon said the recent results are the product of her hard work.

"She's really happy," Simon said. "It was a fast race, she committed herself early, positioned herself well and stayed connected with the leaders the whole way.

"She's been training really well and we knew she would run fast, but it was just a matter of getting into races with the pandemic making it tough. Jessica is planning on running the 3000m in Doha where she'll be chasing another Australian record in that race.

"That will be a fast race, so she should be in a good position to get the record."

Monday's event was likely Hull's last 1500m for the season, with the athlete to spend the next month in Europe before coming home for a short break.

A return to her Portland base is planned for early next year as she begins a tilt at the 2021 Tokyo Olympics.

Along the way, Hull has one big goal. To become the first Australian woman to break four minutes in the 1500m event.

"To have the area 1500m record is pretty special," Hull said post-race. "It's the one I was gunning for. Now I've got the elusive sub-four to reset for next year."

Monday's performance carries extra meaning for the 23-year-old, with fellow Illawarra product Ryan Gregson the Australian men's 1500m record holder.

Hull has chased the record in a bid to ensure the region can lay claim to both titles at the same time a number of emerging men have come close to Gregson's mark.

The pair are products of Albion Park Little Athletics Club, with Hull looking up to one of the country's most decorated middle distance runners throughout her teenage years.

"She's been following his path the whole way through," Simon said. "He showed her you can compete against the Africans and you can make a career out of running. He's blazed the trail.

"There's a couple of boys pushing at that record so it's pretty special for the Illawarra and Albion Park to hold the two records at the same time. It's crazy the two fastest 1500m runners in Australia are both from Wollongong."