I know loads of people who have applied for the Greencard Lottery (a couple won Greencards) and none of them have ever had a problem getting into the US. I'd su

I know loads of people who have applied for the Greencard Lottery (a couple won Greencards) and none of them have ever had a problem getting into the US. I'd suggest the immigration service had other issues with your friend. On the Visa Waiver there is (used?) to be a box to tick if you had been denied a visa. I would imagine being denied a visa and not winning a Greencard are two quite different things.