Ran in the morning on bike path (first time on hard surface) think I liked the wood chip trail better, noticable difference. I changed the interval lengths the rest period was to long, but did run more overall. Get more walking in than riding bike to park which is good. First interval seemed awkward seemed better later. No issues with legs, got the feet on ice now, and did remember to stretch.

Run walk intervals 0.5mi run and about 0.25mi walk (4 times)
Interval times: 4:25/4:23 4:22/3:35 4:24/4:34 4:26/xxx
Interval HRmax: 153,157,157,161
HR 161/129 Time 30:10
Total time with warmup 46min

Ready to move to week5 next time.

C25K Week 5 Day 1
Brisk five-minute warmup walk, then:
-Jog 1/2 mile (or 5 minutes)
-Walk 1/4 mile (or 3 minutes)
-Jog 1/2 mile (or 5 minutes)
-Walk 1/4 mile (or 3 minutes)
-Jog 1/2 mile (or 5 minutes)
C25K Week 5 Day 2
Brisk five-minute warmup walk, then:
-Jog 3/4 mile (or 8 minutes)
-Walk 1/2 mile (or 5 minutes)
-Jog 3/4 mile (or 8 minutes)
C25K Week 5 Day3
-Brisk five-minute warmup walk, then jog two miles (or 20 minutes) with no walking.