Yes,but I would adjust my targets accordingly.
A friend won entry (thanks RW) for two to an overseas marathon/half and very kindly offered me a place. At the time I was returing from injury and thought with five months training a good half pb was on the cards, so I booked the flight. I got knocked off my bike a few weeks later, picked up a disc injury in my back and didn't run in three months prior to the race.With no runs over 10 miles in 9 months and none at all in three months prior to the race I was never going to get close timewise to where I was 12 months previously so I took the attitude of I can blag a half, run/walk if needed, I've paid for the flights, I'll burn off the post race re-hydration calories in the pub so a few painkillers, trainers on, and enjoy the day. Being on the start line for a race brought back that amazing buzz, I got a PW by a very considerable margin but hey, I ran, had a good time, got a very impressive medal and found that my club vest has shrunk in the wash a bit.
As Monty says, JFDI, there's more to running than a pb every race