UBRR training day followed by a ruck march. Are you keeping a log of your times on your runs and rucks? And with the warmer weather upon us, you should be paying much stricter attention to hydration during the rucks.
Training:
More Preparation for the UBRR:
3 x 20 pushups
3 x 20 sit ups
3 x 20 crunches
3 x 20 dips or until muscle failure
3 x 20 side planks
4-mile rucksack march (45-pound minimum) over varied terrain, note your time
Stretch well after completion