Yes my friend, I know you are a huge fan of Tsitsipas, that is why I mentioned him. I'm also liking him more on hard courts which the US Open is played on so I think the $26 odds are very good. I'm thinking about putting $20 on him to win, Del Potro also plays well at the US Open and he has odds of $13 currently which isn't bad either, if they were at around $15 I would bet on him as well.
I'll probably go with Tsitsipas and put around $50 so let's see. I haven't betting on the women's side though, and I didn't check the odds. There might be some tempting odds out there as women's side as very unpredictable.
I'll probably wait what @Royse777 prediction on the women's, he has some good choices in the past so let's see.
Good luck my friend, I think it is a good bet for some value and as we know Tsitsipas is a great player on hard courts and can match it with the top players. On the Women's side I was thinking maybe Osaka at $8 odds if she is fit and healthy as she is another great hard court player, I just don't think she was suited with the clay and grass and now that she will be back on hard court I think she is a great chance at winning.