Charlie Appleby's juvenile, who has already attained a Timeform rating of 134p, is unbeaten in five races with each performance more impressive than the last.
He has come a long way since making his debut at Wolverhampton in May, winning the National Stakes last time out by an incredible nine lengths.
PINATUBO is in a different league to his rivals in the (Group 1) National Stakes at @curraghrace, scoring by a huge 9 lengths under William Buick!— Timeform Live (@TimeformLive) September 15, 2019
A monster performance from Charlie Appleby's star 2-y-o!🏇
Aidan O'Brien is in the unusual position of being the underdog for once, but that did not stop him from supplementing Wichita earlier in the week.
Wichita was a seven-length winner of the Tattersalls Stakes and is one of four Ballydoyle representatives along with Coventry Stakes winner Arizona, Monarch Of Egypt, who has been second to Siskin twice this season, and Year Of The Tiger.
The Charlie Hills-trained Royal Commando completes the field.