Australian distance runner Izzi Batt-Doyle has set a new national women’s marathon record after an outstanding performance at the Chicago Marathon, finishing sixth in the elite women’s race with a time of 2:20:38.

The Adelaide athlete’s result lowered the previous Australian record by 46 seconds. That mark had been set by fellow South Australian runner Jess Stenson in Valencia in December. Batt-Doyle also improved her own personal best by two minutes and 21 seconds, making the performance a significant milestone in her career.

Batt-Doyle said she felt happy and relieved after achieving a target that had remained on her mind for several years. She also expressed pride at joining the group of Australian athletes who have held the national record, recognising the achievements of runners who came before her.

Her performance was built on a controlled pace throughout the 42.195-kilometre race. Her five-kilometre segments remained remarkably consistent, generally falling between 16 minutes and 36 seconds and 16 minutes and 47 seconds. That consistency helped her maintain a pace of roughly 3 minutes and 19 to 21 seconds per kilometre through much of the course.

Batt-Doyle passed the halfway point in 1:10:29 and completed the second half in approximately 1:10:09. The negative split showed that she was able to run the latter part of the marathon slightly faster than the first half, despite warm conditions and the physical demands of the event.

Her fiancé, Riley Cocks, paced her during the race. Batt-Doyle explained that the pair spent much of the course running in relative isolation between groups of competitors, relying on their planned pacing strategy and her ability to maintain concentration.

The warmer weather added another challenge. Batt-Doyle said preparation included careful hydration, and she used water stations to cool herself as well as drink. She continued to run strongly late in the race, recording her fastest five-kilometre section between the 35-kilometre and 40-kilometre marks. She accelerated further over the final stretch as she realised the record was within reach.

The Chicago women’s race was won by Ethiopia’s Hawi Feysa in 2:13:33. Batt-Doyle’s sixth-place finish nevertheless delivered a major result for Australian athletics and established a new benchmark for the country’s women marathon runners.

The record is a notable achievement for Batt-Doyle and adds to the growing list of strong Australian performances on the international distance-running circuit.