The awards were made on the basis of achievement last season. McDonald was the leading apprentice with 151 wins and $2,222,230 in stakes. He had eight group or listed race wins.
Myers was the leader in the central districts with 71 wins.
The Ashburton-based Stackhouse was the leader for the South Island with 34 wins.
The scholarships provide for the apprentices to spend two weeks working for a trainer in Victoria with the chance of race rides. Expenses for travel and accommodation are met and a living allowance provided.
The scholarships replace the apprentice jockey championship day.
NZTR felt the championship day was no longer relevant with apprentices frequently travelling to other venues.
Stackhouse rode three of the four winners of the jumping races at Foxton yesterday. He won the open hurdles on South Road, a maiden steeplechase on Electronic Hoss and the restricted open steeplechase on Barado.
Stackhouse has a good book of rides at Washdyke on Sunday. They include last-start winner Callystar, Eel Win, Brown Eyed Grace, Stormy Mist and Biscuit Green.
McDonald was suspended four days for careless riding at Taupo on Wednesday.
McDonald, the rider of Tafaool, admitted shifting out near the 400m, causing Sam Spratt, the rider of Voitre, to lose her irons. McDonald is out from the conclusion of racing tomorrow until midnight on Friday.