6 Miles mostly Running

I started out with the Orange group this morning, doing 3:1's for the first 45 minutes. I started to feel a little pulling in my left IT band, so I dropped down to 2:1's for the next 20 minutes.Then I met up with Marta, who had a side stitch, so the two of us walked in the last mile. I finished the 6 miles in 1:23, which is my usual 10K time, so I was pleased. I guess I'll continue to do 3:1's as long as I can. I have to decide my strategy for tomorrow -attempt 10 miles or not?