don't know if you are still looking for courts but there are some in NW near 25th and Raleigh, Washington Park near the Rose Garden and Willammette Park near the Sellwood Bridge on the west side has some nice courts too. I'm looking for people to play with. If you would like to, then please drop me a line.
some courts in NW are wallace park on 25th and overton or Washington park near the rose garden. there are many courts in between courts in between just go on the portland parks website. Also if you want to a hitting partner in NW just drop me a line.