Book 1 of NZB's 2023 National Yearling Sale Series at the Karaka Sales Centre took place from Sunday 29 until Tuesday 31 January. 

Over six days of selling at Karaka 2023, 742 yearlings sold for an aggregate of $82,158,500, an increase of over $7.7 million on last year’s figure. The combined average has risen from $106,109 to $110,726 and the median increased from $70,000 to $80,000. The combined clearance rate also increased on last year’s result, rising from 75% to 77%.