Before focusing on track and distance racing, Scarlett excelled in competitive swimming, gymnastics and springboard diving. She still currently holds 13 Auckland age group swimming records and was also part of the New Zealand team that won the New South Wales Gymnastics Championships.
In the 2021-2022 season, Scarlett won gold at the North Island Cross Country Champs and the NZ U16 Road Racing Championships. Academically, she excelled by tackling Year 11 (NCEA Level 1) mathematics while only in Year 9. The 2022-2023 season saw her dominate the NZ Secondary Schools Year 9, 3km Road Race, retain her North Island Cross Country title, and still achieve top scholar status in Year 12 (NCEA Level 2) calculus, despite only being in Year 10.
Scarlett's achievements in the 2023-2024 season are even more impressive. She won the Auckland Marathon 5km race, triumphed in the U20 Women 5,000m at the Agency New Zealand Championships, won the NZ 5km Road Champs and was a double medallist at the Oceania Championships (gold in the 3000m and bronze in the 1500m). Additionally, she earned bronze at both the NZ Schools Cross Country Champs and the NZ Club Cross Country Champs and won the North Island U18/20 Cross Country Champs. She was also part of the U18 New Zealand team that won gold the Australian Cross Country Champs, all whilst studying Year 13 (NCEA Level 3) calculus as a Year 11 student.
Kicking off the 2024/2025 track season Scarlett claimed a dominant victory at the December 2024 NZ Secondary Schools 3000m. She carried that momentum into 2025, running 9m27 at the Sydney Classic 3000m and an outstanding 4m22 in the Sir Graeme Douglas Classic 1500m. During February, this placed her Number 3 in the world for u18 year olds. By July she had added more gold medals to her collection with commanding wins in the Auckland School's Cross Country, the North Island u18/u20 Cross Country and the Queensland u20 Cross Country in Australia.
The 2025/2026 season has been Scarlett’s best season yet. She opened with two PBs - a solo 4m22 1500m in Auckland and three days later powered home with a lightning-fast last lap to clock 9m18 at the NSW 3000m Championships in Sydney. In December she won the senior titles in both the 1500m and 3000m titles at the NZ Secondary Schools Championships and unleashed a sizzling sprint finish to win the Australian U20 3000m at the prestigious Zatopek meet in Melbourne. The following week Scarlett won the Elite Women’s 5000m at the New Zealand Night of 5’s in 16m25. Scarlett also represented New Zealand for the sixth time, this time at the World Cross Country Championships in Tallahassee in January 2026. She finished a credible 48th place, the top finishing New Zealander, and in the middle of the New Zealand summer outdoor track season! Upon returning to New Zealand, the second half of Scarlett’s summer season was equally impressive, most notably a sensational 4m17 in the 1500m at the Perth Track Classic in February 2026.
Scarlett ended the New Zealand 2026 outdoor track season with PBs of 4m17 in the 1500m, 9m18 in the 3000m and 16m25 in the 5000m. Over the summer she also ran nine World U20 Track Championship qualifying times (six times in the 1500m and three times in the 3000m), all while undertaking a demanding academic workload and responsibilities as a school prefect.
Scarlett now turns her attention towards preparing for the World U20 Track & Field Championships in Eugene in August 2026. She has been named in the New Zealand team for both the 1500m and 3000m.