Signed up for a 5k

I just signed up for the Achilles St-Patick Day 5 km Run on March 16th in downtown Toronto. I didn't feel like waiting till March 30th to race again. Call me impatient. It's a nice flat course in the business core. Even if I try hard, it shouldn't have an impact on my 10k race two week later. I'm going to try to go under 22 minutes for that 5k, which is a 4:24/km pace. That should be quite the challenge.