I don't know who the heck "Mike" is, but you can call the National Tennis Center in Queens at 718-760-6200, extension 0 about reserving a court. This time of year, they generally have so many outdoor courts available they may not bother taking your reservation but just tell you to come on by. Last night, my friend and I were the only ones playing outside from 10 to midnight on the some-20 courts available. Yes, aside from the wimps playing inside the bubble, the grounds were completely deserted except for us two boys battling it out under the blazing lights on a primo show court on the hallowed and historic grounds of the mecca of United States tennis. The fact that we both suck (and no longer qualify as "boys"), made it no less glamorous and exciting...
But if you do go out there and play outside, tell them you really want a nice show court like number 7 or 11, which are the two biggest courts after Ashe, Amstrong, and Grandstand. (You allegedly can rent Ashe for 1500 dollars, by the way.) Courts number 4 and 10 and 13 are ok too. You can look at the site map and see the relative size of each one on their website, or on the little map to the left of the front desk. If you want to play inside on the way less glamorous US Open practice courts, reserve a court in the bubble to the left of the front desk, in what I think they call the "P" courts, as opposed to the other side, which might be called the "A" side -- I think the courts are better in P.