Lighted polo courts in Portland

Today i came up with a list of potential lit polo courts and this is what i came up with
Rose City Park
http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=rose+city+park+portland+or&sll=45.52463,-122.599182&sspn=0.532054,0.85968&ie=UTF8&cd=1&ll=45.538519,-122.598925&spn=0.004336,0.006716&t=h&z=17
Mt Taborhttp://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Mt+tabor+portland+or&sll=45.538519,-122.598925&sspn=0.004336,0.006716&ie=UTF8&ll=45.513031,-122.599204&spn=0.002079,0.003358&t=h&z=18
Arbor Parkhttp://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=arbor+park+portland+or&sll=45.570516,-122.621052&sspn=0.132906,0.21492&ie=UTF8&ll=45.573242,-122.693725&spn=0.002077,0.003358&t=h&z=18
Essex Parkhttp://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=essex+park+portland+or&sll=45.573242,-122.693725&sspn=0.002077,0.003358&ie=UTF8&ll=45.494375,-122.583497&spn=0.00217,0.003358&t=h&z=18&iwloc=A
Grant Parkhttp://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Grant+Park+portland+or&sll=45.494375,-122.583497&sspn=0.00217,0.003358&ie=UTF8&ll=45.53985,-122.629341&spn=0.001039,0.001679&t=h&z=19