Just realized LRC had a (mostly) reasonable take on this.
Quick Take: Where did that come from, Jessica Hull?
At the start of 2023, when Jessica Hull decided to leave the Nike Union Athletics Club so she could return to Australia to be coached by her father Simon, her pb stood at 3:58.81. Now it is 3:50.83, and only four women have ever run faster — Kipyegon, Genzebe Dibaba, Gudaf Tsegay, and Qu Yunxia. Hull was already world-class when she left UAC — her 3:58.81 was the Aussie record and she was 7th at the 2022 Worlds — but she has gone up a level since, perhaps several levels based on today’s evidence.
Hull had been running well in 2024, clocking a pb of 8:24 to take 4th at World Indoors in the 3,000 and running a big pb of 3:55.97 to finish second in the 1500 at Pre., but there was nothing to suggest she was a 3:50 woman. Give Hull a lot of credit. She knew that with Kipyegon leading the way, she would not have a better opportunity to run fast, and she grabbed it with both hands. There is a world where Hull totally blows up after going out in 2:04, but sometimes to get a big reward, you have to take a big risk. That is what Hull did today.