Spring is in my step.
The great Grete Waitz ran 19 marathons in her career, winning 13 of them.
She was the first woman to break the 2:30 barrier, eventually lowering the world record to 2:25:42.
She believed that speed training was imparative for all runners of all distances and abilities.
Her marathon training reflected that of her 3,000 - 10,000 meter race training.
Many marathoners and ultra runners do not have the requisite raw speed to match their desired race pace speed, yet they continue to try and train their race pace speed and endurance.
Speed dictates endurance capability and potential.
Here is one of my Raw Speed practices on a soccer or football field:
WU: 10' easy.
Drills: quick feet, quick skip, skip for height/distance, one leg hop, standing jump, one leg high hop. (Watch Drills)
MS1: 10 X 15" moderate sprints.
MS2: 20 yards longer than MS1 - 10 sprints faster than 15".
MS3: 10 diagonals at 4:30 pace, (run what is fast for you) with easy jog on horizontals.