The races are restricted to horses sold through the New Zealand Bloodstock Yearling Sales held at Karaka.
Since 2018, the "Boys Get Paid" Facebook group have organized a large gathering of hundreds of members at the Karaka Million meeting with a punting syndicate delivering what are believed to be the largest bets on New Zealand races.
For example, 2023 had a six-race card: In 2024 the Aotearoa Classic, a $1 million race over 1600m, was introduced for 4 year old horses.
[7][8] These are the recent winners of the Karaka Million 2YO race: Melody Belle was a $32 outsider when she won the 2017 edition.
The victory by Cool Aza Beel in 2020 was the fourth consecutive win by Opie Bosson as a jockey in the Karaka Million 2YO race.