But there is more than just the first place prize up for grabs on Friday as Spankem is making a late, unlikely bid for the Horse of the Year title.
Thefixer would have been the early favourite for that after he won the New Zealand Cup, always the most important race for voters, but while he has won a Ballarat Cup and Miracle Mile prelude since, he has been beaten plenty of times.
Turn It Up has the Auckland and Easter Cups next to his name so a win this Friday and in the Jewels on June 1 would put him in the HOTY box seat.
But if he wins on Friday then Spankem's credentials get a further boost.
He has already won the Miracle Mile in 1m 47.7s, the prelude a week earlier, the Kaikoura Cup, two Inter Dominion heats and last Friday's Taylor Mile. Add the Messenger this week and his claims become hard to deny.
Just 30 minutes earlier the Trotter of the Year title looks certain to be decided in the $150,000 Rowe Cup which hosts the horses who have won all the previous group one trots held in New Zealand this season.
Speeding Spur, who has drawn the second line on Friday, is the only trotter to have won two Group 1s this term and is joined by Marcoola (Dominion), Massive Metro (National Trot) and Sundees Son, who won last Friday's Anzac Cup.
Another Group 1 victory for any of that quartet could seal them the trotter's title, with Sundees Son the only one with a further Group 1 opportunity this season in the four-year-old Jewels at Addington on June 1.
Earlier in the night Sweet On Me will be red-hot to bounce back from her first defeat last Friday in the Sires' Stakes Championship while the battle between Enhance Your Calm and Lotamuscle highlights the $100,000 Trotting Derby.
Messenger Pace
Alexandra Park, Friday
$100,000, 9.14pm
1: Mach Shard
2: Hail Christian
3: Spankem
4: Chase Auckland
5: Turn It Up
6: Henry Hubert
7: On The Cards