Running Plan Review Runner's World 16-Week Advanced Marathon Training Plan

Does it build you up smartly?

Partly. The plan grows in a steady arc toward race day, but its phases are mostly names.

The arc is real. The long run more than doubles, Friday's marathon-pace block grows from 3 miles to 8, and the peak phase moves Wednesdays to the track. The PDF spells out each hard day: how far to warm up, how many repeats, how far to jog between them. You won't stand at the track wondering what comes next.

Runner's World puts marathon-pace miles into the Friday run nearly every week for a clear reason. Practicing your goal pace, its workout key says, makes that pace feel easier on race day, and for learning the rhythm of the race that works. But the phases are more label than change. Plans that shift their emphasis from one block of weeks to the next tend to race a little better than plans that hold one kind of load steady. Here the Friday run carries through week 15, and the peak phase adds speed on Wednesdays without changing what the main hard day asks. For most runners outside the front of the field, marathon pace sits below the threshold, the effort you could race for about an hour. So those Fridays are rhythm practice for your goal, a different kind of training from threshold work, and the same practice runs from week 2 to the taper.

Does it protect you from injury?

In part. From one day to the next, the plan looks after you. But it piles its biggest change into a single week, and it leaves strength and warning signs out.

There's always an easy run or a day off between hard sessions, and each hard session opens with an easy warm-up and closes with a cool-down. The workout key even gives the day off some shape: the couch, some meditation, light mobility work or an easy yoga class.

But the build has no true recovery week. The long run drops back every few weeks, to 10 miles after 14 and to 14 after 22, but the runs around it stay as busy as before. A runner on a fixed plan needs relief from load that keeps building, and a scheduled lighter week is the simplest way to build it in. In this plan, the first one comes in week 14, when the taper begins. In one coach's experience, the payoff from a lighter week comes after it, not during it. "Athletes often feel sluggish and have lower energy during this week," said coach Pete Rea, whose runners cut their mileage 15 to 20 percent every third week. "Nonetheless I find the level of workouts is elevated thereafter, that workouts are more effective and staleness prevented." On this plan, you'd have to carve out that lighter week yourself.

Now picture the runner who reaches week 9 after 8 weeks of building, with no recovery week behind them and no strength work underneath. In 7 days, their running goes up by about a quarter. The first speed session appears on Wednesday, Friday's marathon-pace block reaches 7 miles, Sunday asks for 20, and the Saturday rest day that used to sit between those two is now a run. Big jumps in running load tend to raise injury risk, and here the jump arrives with a brand new kind of session. Studies that follow runners week by week suggest that many injuries begin suddenly rather than building up slowly over months. Week 9 is the one to treat with care.

Strength is another gap. The plan neither mentions nor schedules it, and six running days leave few obvious slots for it. Strength training substantially lowers sport-injury risk, more than stretching does, so it's worth making the room. "In my mind the gym work helps to chase away the injuries and train the muscles," marathon great Eliud Kipchoge once explained. On a six-day plan like this one, that room has to come from the easy days.

The last gap is knowing what to watch for. The plan never says when to ease off or when to stop. Early evidence, mostly from other sports, suggests a niggle that hangs around may raise the odds of an injury that interrupts training, so an ache that's still there on Saturday's easy run deserves more attention than the schedule does.

What happens when you miss a day?

Sixteen weeks of six-day running rarely goes exactly to plan. When a run or a week slips, a good plan tells you what to keep.

This one doesn't. The grid gives every day the same weight, and nothing covers a missed run, a lost week, or how to come back from either. The only hint is in the typography: the marathon-pace runs and speed sessions are underlined. The grid also has little slack. Push a Wednesday speed session to Thursday, and it lands the day before Friday's marathon-pace run, two hard days in a row.

What the plan does well is tell you how each run should feel. Friday's marathon-pace miles come with a target of 6 or 7 on a 10-point effort scale. Easy runs come with three checks: the talk test, a heart rate range, or a pace rule tied to your 10K. With those, a runner can judge an off day by feel rather than by the watch.

But your marathon pace stays wherever you set it in week 1. Nothing in the 16 weeks checks it or adjusts it. If the goal was too ambitious, Friday's runs and the 800s will tell you, and deciding what to change is left to you. Pete Pfitzinger and Scott Douglas, authors of Advanced Marathoning, offer a simple yardstick: "if you can do 90 percent of the planned training schedule, your preparation is going really well." Timing matters too. "Missing 2.5 weeks of preparation when you have 16 weeks to go is no big deal," they write, "but missing that amount of time during the last 2 months of preparation will likely require you to modify your goal." On this plan, those last 2 months start with week 9, so losing 2 or 3 weeks from then on is your cue to take a hard look at your goal pace.

Will it get you ready for race day?

Yes. Race readiness is the plan's strongest side.

The long run does the heavy lifting. It peaks at 23 miles in week 13, 3 weeks before the race. Marathoners who train with longer long runs tend to finish faster, though no one has tested whether shorter, faster work could replace them. Peak mileage of 65.5 in week 13 fits an experienced marathoner, and the long runs stay at an easy, conversational effort, so they build endurance without turning into races.

Friday is the rehearsal. Marathon-pace miles show up every week from week 2, and by weeks 12 and 13 you run 8 of them inside a 12-mile run. By race day, the effort you'll hold for 26.2 miles is a feeling you know well.

Week 8 offers a choice for its Sunday: 16 easy miles or a half marathon race. A race there is a chance to practice holding back early, and there is some evidence that runners with more racing behind them pace marathons more evenly.

The finish is well built. Mileage drops from 65.5 to 52.5, then 40, and race week holds just 12 miles before the marathon. A taper of up to 3 weeks improves race performance compared with holding training steady. Bill Pierce, a co-founder of the FIRST running program, has seen tapers stretch out. "The marathon taper has tripled in length during my career," he said. "When I first started out in the 1970s, we only did a six-day taper for our marathons." This plan takes the longer view, with 3 full weeks to arrive at the start line rested.

Are the workouts varied enough?

Trained runners may improve more by keeping easy days easy and hard days clearly hard, rather than running everything at a steady middle effort. This plan follows that pattern closely. Holding back on the easy days takes some discipline, even for elites. "I rarely time my recovery runs so I stay true to the day's purpose and avoid the temptation to push it," wrote Becky Wade, a 2:30 marathoner, in her log of training for the Olympic Trials. This plan's easy runs go by feel too, at an effort easy enough to hold a conversation.

About 82 percent of the running is easy, and the hard days are spread out so an easy day or a day off sits before each one. The hard work comes in several forms: Friday's marathon-pace miles, mile repeats at 10K pace with a half-mile jog between, and 800-meter repeats that grow from 6 to 8 to 10 across the peak. Week 7 adds a hill session of short and longer climbs, 12 in all, and the first 6 Wednesdays send you over the hilliest route you can find. Mixing easy miles with clearly hard sessions of different kinds may build endurance a little better than long stretches at one moderate pace.

The weekly rhythm makes the variety easy to live with. Wednesday is speed or hills, Friday is marathon pace, Sunday is long. Most weeks, you know what's coming before you look.