1 mile efforts

With the Gosforth 10k coming up soon and only one road run in a very long time, I headed out to see if I could still run at anything like a decent pace. After a 2.5 mile warmup, I did 4 x 1 mile efforts at 7 min mile pace. Not exactly lightening fast but fast enough for me to equal my pb. How's that for 10k training, next run the race??