Saturday will be the real test as I'm due to run a "race pace" 5K. To put it in perspective I've been running 28:30 to 29:00 for the last few months when I go out and just run a 5K to stay in shape.
Now I just need to start increasing my distances so that I can eventually run 13.1 miles. But all in time, no need to rush it yet. In fact I still plan to ride 2 or 3 times a week until I start my 12 week regimented Half marathon training.