On Wednesdays from the middle of April through May every year the Northwest Cycling Club hosts a criterium in Bear Creek Park. This is a .8 mile course. The races start at 5:30 with Cat 4 &5's and finish with P,1,2,3's starting an hour race at 7:00 PM.
The loop is in the middle of the park on Sullens Way. That is important to note because Bear Creek is a big park and first hand experience says you can spend a good chunk of time circling around without finding it- middle of park on Sullens Way folks!
There is a nightly purse and primes as well as a series award for category winners. The series doesn't have a web page but they update their Facebook page frequently.
On a nice Spring night you can't beat picnicking in the park while hearing this great sound!