Originally scheduled for 1 August 2015, it was rescheduled a few more times. Due to smokey conditions, TFRs and the fire fighting activity on the Mendos the race days had been canceled.
Finally, on September 26th the race was a success, but it was a challenging day. See the reported posting on Williams Today :
In the final analysis, there were four contest pilots that departed the start gate, but only one finished. Here is the score sheet for the day: