Lucy Bartholomew

Lucy Bartholomew (born 20 May 1996) is an Australian ultramarathon runner and endurance athlete who has achieved international recognition in trail ultrarunning and triathlon.

Early years Bartholomew was born in Melbourne, Victoria, Australia on 20 May 1996. Inspired by her father, Ash Bartholomew, an ultrarunner, Lucy developed an early love of trail running. At age 15, she completed her first 100-kilometer ultramarathon alongside her father, finishing in approximately 12 and a half hours. This formative experience sparked her lifelong passion for ultradistance running.

Achievements Bartholomew rose to prominence in the ultrarunning world as a teenager, quickly becoming known for her strength in mountain and trail races.

In 2017, she won both Ultra-Trail Australia 100 km and Ultra-Trail Cape Town 100 km; placed second in the 80 km Marathon du Mont Blanc. In 2023, she completed the Ultra-Trail du Mont-Blanc (UTMB) 171 km in 27:39:23, placing 10th in her age group. She also competed in her first Ironman triathlon (Ironman Western Australia), finishing fourth in her age group and qualifying for the Ironman World Championship in Kona, Hawaii, United States. Later in 2023, she became the second woman ever to complete both the UTMB and Ironman World Championship in the same year, finishing the Ironman Kona in 10:43:41.

Results Place Race Distance Date Time Ultra-Trail Australia 100 km 20 May 2017 10 h 52 min 35 s Marathon du Mont Blanc 80 km 23 June 2017 13 h 23 min 12 s Ultra-Trail Cape Town 100 km 2 December 2017 11 h 21 min 49 s Western States Endurance Run 100 mi 23 June 2018 18 h 59 min 45 s Tarawera Ultramarathon Miler 165.2 km 11 February 2023 17 h 13 min 27 s Ultra-Trail Australia 100 km 13 May 2023 11 h 52 min 41 s Ultra-Trail Australia 100 km 18 May 2024 11 h 00 min 34 s Ultra-Trail Kosciuszko by UTMB - Kosci 50 50 km 27 November 2025 4 h 32 min 13 s Transvulcania 73 km 9 May 2026 7 h 49 min 26 s Lavaredo Ultra Trail 120 km 26 June 2026 13 h 34 min 59 s

Personal bests 100 kilometers trail – 10:01:06 (Tarawera Ultramarathon, 2025). 100 miles trail – 17:13:27 (Tarawera Ultramarathon, 2023). Ironman triathlon – 10:43:41 (Ironman Kona, 2023). UTMB 171 km – 27:39:23 (UTMB 2023). Marathon - 02:47:06 (Brisbane marathon 2026).