- Warm-up: 8 minutes easy jog
- Interval: 3 minutes (should be fairly hard effort, 5k race pace)
- Recovery: 1:30 easy jog
- Interval: 3 minutes (5k race pace)
- Recovery: 1:30 easy jog
- Interval: 3 minutes (5k race pace)
- Recovery: 1:30 easy jog
- Interval: 3 minutes (5k race pace)
- Recovery: 1:30 easy jog (If you are running an out-and-back route this is where you turn around)
- Interval: 3 minutes (5k race pace)
- Recovery: 1:30 easy jog
- Interval: 3 minutes (5k race pace)
- Recovery: 1:30 easy jog
- Interval: 3 minutes (5k race pace)
- Recovery: 1:30 easy jog
- Interval: 3 minutes (5k race pace)
- Cool Down: 8 minutes easy
As long as you don't go too hard at the beginning of this workout you should be near where you started if you turned around at halfway. This accomplishes both the speedwork goal (hard intervals with short recovery) and even split.
I consider this workout a "short" run, so if you are not used to running 1 hour+ then scale back the intervals accordingly. You should be able to find a good balance of effort/time. Your lunch hour will never be the same!