I attended a similar concert last year at Ravinia.
First half:
Vladigerov -- Sonatina Concertante, Op. 28
Chopin/Godowsky -- 9 Etudes
Second half:
Wagner/Liszt -- Isolde's Liebestod
Verdi/Liszt -- Ernani
Bellini/Liszt -- Norma
Encore:
(I'm not sure, but I found a website that listed the following pieces, and they sound right to me)
Scriabin -- Etude Op. 2, No. 1
Chopin/Liszt -- "My Joys" or "My Darling" depending on the translation, I think (S. 480, No. 5)
Antheil -- Jazz Sonata (just an excerpt maybe? whatever it was, it was fun!)
I concur: his octaves in the Liszt were outrageous. And let me just say, seeing this guy perform some of those left-hand etudes... miraculous!