Spot Nine started at the lucrative price of $30 while punters pinned their faith in Ransom Olds that looked to have the race in his keeping a lap from home.
Rattray had Spot Nine settled just beyond midfield early and he waited until the bell lap before making his move.
Laterron made a lightning move during the first lap to take the lead from My Micky Blue Eyes () while the $2.50 favourites Ransom Olds was set alight soon after by his driver to go up and park facing the breeze.
Rattray called on Spot Nine for the supreme effort in the back straight the last time and it was evident 400 metres from home that he had the leaders covered.
Laterron forged clear of Ransom Olds that appeared to be floundering turning for home but they were both sitting ducks for the swoopers.
Spot Nine stormed home to defeat Watchmefella () with ransom Olds clinging to third ahead of Laterron.
Spot Nine broke the track record mile rate clocking 2m.03.46 sec bettering the previous best set by Benediction (2.04.2) in this race last year.
Maine has been training in her own right for about two years but this is not her biggest win as she won last season's $30,000 Granny Smith mares feature with Tisu Holly.
Listen to what trainer Melissa Maine had to say about Spot Nine's Hobart Pacing Cup win.