Whakaoti i te rerenga e whai ake nei: Kua puta a Greenstein i roto i ia o nga raupapa tuatahi e toru o te Poker Superstars Invitational Tournament me nga waa e whitu o te raupapa GSN "High Stakes Poker". Kua puta hoki ia i roto i nga wa tuatahi e toru o te raupapa mutunga o te po "Poker After Dark" i runga i te NBC. Kua riro hoki Greenstein rua World Poker Tour (WPT) taitara: te Fifth Annual Jack Binion World Poker Open ($1,278,370), me te 2006 WPT Invitational i te Commerce Casino ($100,000). Kua riro ano ia i etahi atu taitara WPT e rua i roto i nga huihuinga motuhake: WPT Matua me nga Taakaro Tama, 2006 World Poker Finals; me te WPT Poker na te Pukapuka: Upoko 2. Mai i te tau 2008, ka tiimata tana tuku i ana whiwhinga ki nga mahi atawhai. I te 2008 World Series o Poker (WSOP), Greenstein moni i roto i te ono ngā mō te katoa o $768,461. I mutu ano ia i te tuarua i te 2008 WSOP Player o te Tau, i muri i a Erick Lindgren. I roto i
2011, Greenstein moni e rima nga wa i te Ao Series o Poker, tae atu ki te wahi 3 i roto i te $ 10,000 Limit Hold'em Championship mo $ 169,512 me te wahi 15 i roto i te $ 50,000 Player o Championship.