Running Plan Review 80/20 Running Marathon Level 2

Does it build you up smartly?

The blocks here come in good order, and the gap is in how the sessions are written. A marathon build works best when each stretch of weeks has its own job, and the jobs come in a sensible order. Plans built that way tend to race better than plans that keep the same training from start to finish.

The base weeks grow the long run while short bursts and hill efforts keep your legs quick. The peak weeks bring longer stretches at moderate and hard effort, then put faster running into the long runs themselves. The last block, in weeks 15 and 16, turns to the race itself, and its 16-mile dress rehearsal sits in a lighter week, so you practice race effort on legs that aren't worn down.

But the schedule rarely tells you why a session is there. Only the dress rehearsal says what it's for. For the rest, you turn to the book, which explains each kind of workout. If you've read it, that's fine. If you haven't, Tuesday and Friday are just a list of efforts and times, and it's hard to know what each one is meant to build.

Does it protect you from injury?

Only partly. The plan leaves out strength work and any guidance on early warning signs, and one week asks a lot at once.

There are no strength sessions anywhere, and the book doesn't offer a routine to fill the gap. That's a real loss, because strength training cuts the risk of sport injuries more than stretching or balance work alone. If you want it, choosing the work and fitting it around the hard days is up to you.

The book also doesn't say which aches to watch for, when to back off, or how to come back after time away. Many runners describe injury as a sliding scale, from feeling fine to a low-grade ache to a full stop, and many notice that an ache that lingers between runs can be the step before that stop. Knowing when to ease off is the cheapest protection a runner has, and this plan leaves you to work it out.

Week 10 is the moment to watch. It comes straight after a lighter week, and it brings two new kinds of hard session, the Monday run back, and an 18-mile long run, the longest so far, all at once. Your total running only climbs back to about where it stood before the lighter week. But new kinds of hard work are arriving in a bigger week, and that adds up. Take that week carefully.

Outside that week, the build is gentle. Your weekly training rises without sudden jumps, and the two hard days are never back to back. Every third week of the build is lighter, which matters on a plan you follow alone, since training that piles up without relief tends to raise the risk of injury and illness.

What happens when you miss a day?

The plan doesn't tell you what to cut. Nothing on it says what to do with a missed hard session, a lost week, or a few days sick: repeat, skip ahead, or move the work. The pattern makes a good guess easy, since Tuesday, Friday and Sunday clearly carry each week, but the plan never says to keep those first. With a run on all 7 days in most weeks, there's no empty day to slide a workout into, so any change is yours to arrange.

What the plan does give you is room to bend. In week 14, 4 of the 7 runs can be a ride or a swim instead. On a heavy week, trading Wednesday's run for a ride takes some of the pounding off your legs and keeps the aerobic work. For a plan with this many sessions, that's a real release valve.

The effort guidance is strong. The book teaches you to read each zone three ways, by heart rate, by feel and by pace, so a tired week doesn't throw your training off.

Will it get you ready for race day?

Yes, mostly. The plan builds the endurance a marathon needs, then keeps the work high a little too close to the race.

The long run carries most of that endurance. Runners who build longer long runs tend to finish marathons faster, though that link comes from watching runners, not from a test against shorter, faster sessions. This plan's long run reaches 20 miles in week 11, then stays at 16 to 18 miles for most of the weeks that follow. Some of those later long runs carry a short faster stretch in every mile, and some finish at a moderate effort, so you learn to hold your form on tired legs.

The faster running grows toward race day too, through longer stretches at a moderate effort. That kind of work and running at marathon effort are different kinds of training, and either is a reasonable way to prepare, so it helps that you get both. The week-15 dress rehearsal gives you a long stretch at your goal marathon effort, late in a 16-mile run.

The weak spot is the taper's shape. Week 16 is one of the biggest weeks of the plan, with an 18-mile long run full of faster stretches, two weeks before the race. Week 17 is only about a fifth lighter, and most of the drop is left to race week itself. That's a lot of fatigue to shed in a few days. If your legs still feel heavy in week 17, shorten its long run rather than pushing through it.

Are the workouts varied enough?

Yes. You'll train in many different ways, and nearly all of it stays easy.

About 88 percent of your running is easy, and the Friday sessions are clearly hard. Most runners tend to improve more when easy days stay easy and hard days stay hard than when every run settles into the same medium effort. Fridays, with a big base of easy running around them, are the kind of clearly hard work that tends to build endurance a little better than long, steady, moderate-hard running.

The surprise is Tuesday. The book that warns runners away from the moderate middle puts measured doses of it on every Tuesday: an easy run that finishes at a moderate effort, then moderate repeats, then 20 to 30 minutes held steady. It never grows into the bulk of the week. It stays a small, deliberate slice, which is how the 80/20 rule is meant to work.

And the hard days keep changing. Fridays move from short uphill efforts in the base to 3-minute hard repeats in the peak, and two of the late long runs add a quarter mile of faster running every mile. Week to week, there's always something new to learn about holding an effort.