Running Plan Review Greg McMillan Marathon: Intermediate (Speedster)

Does it build you up smartly?

A marathon build works best in stages: general fitness first, then running that looks more and more like the race, then a lighter finish so you arrive rested. Shifting the emphasis from block to block like this produces better races than a constant load. Lighter weeks belong along the way too, because they let fatigue clear so the body absorbs the training of the weeks before.

The overall arc here is sound. The hard running moves from short repeats and threshold work in the first 5 weeks to marathon goal pace in the second half, and the long runs build to three outings of 18 to 22 miles before a taper. The lighter weeks are generous. From week 4, the plan alternates a bigger week with a smaller one almost all the way to the race, 5 lighter weeks in 12.

Week 4, the first of them, is lighter in miles, not in work. It drops to about 24 miles, the fewest of the build, but it holds 2 stretches of 3 miles at goal pace on Thursday and a 90-minute Sunday run in thirds: easy, then steady, then goal pace. To balance that, Wednesday and Friday have no run at all that week, only cross-training or rest. Take the rest.

But the schedule is thin on detail. Each session is a single line, something like 8 to 12 times 400 meters with a 200-meter jog. It doesn't say what the session is for, how hard the repeats should feel, or how to warm up. The book explains all of that in its workout chapter, and you carry the link between the two. The stages aren't named either, so the turn toward goal-pace running arrives without a signpost.

Does it protect you from injury?

Mostly yes, with 2 weeks to watch and 1 gap to fill.

The foundations hold. No hard session sits the day after another, the mileage builds gradually from week to week, and the lighter weeks come often. The book also teaches the warning signs of injury and how to respond to them, across its chapters on heeding warning lights and speeding recovery. Read those before week 1. An ache that hangs around from one run to the next appears to raise the odds of an injury that stops you running, and the book tells you what to change when one shows up.

But two weeks stack more than the rest. Week 7 comes straight after a lighter week, and it's where the load jumps most against the weeks before it: 8 miles at goal pace on Thursday, 18 to 22 on Sunday. Sudden jumps in weekly running raise injury risk, and many running injuries start suddenly. Week 9 is the biggest week of the plan, and it's also where the 10 to 12 mile goal-pace run appears, on Thursday, with another 18 to 22 mile long run 3 days later. A new kind of hard session arriving in the heaviest week asks a lot of legs that are already carrying the most miles. In both weeks, use Wednesday and Friday as rest.

The gap is strength. The book includes a sample strength routine and points you online for the full program, but none of it appears on the schedule. Finding a slot between a Thursday session and a Sunday long run is your job. That's a real loss, because strength training substantially lowers the risk of sport injuries, more than stretching does. With Monday off and optional days most weeks, room isn't the hard part. Remembering is.

What happens when you miss a day?

In an ordinary week, yes. After a lost week, you're mostly on your own.

The weekly shape gives you room to move. Monday is always off, and in most weeks Wednesday and Friday can be a run, cross-training or rest. Nearly every run comes as a range, and the book tells you to take the low end when you're tired, and to move or skip a key workout on a bad day. It teaches effort in 4 zones, adapted from the work of David Martin, one of McMillan's mentors, and set from a recent race. That's how intensity zones work best: anchored to your own physiology rather than a percentage of your maximum heart rate. Over 12 weeks, you get better at reading your own training.

But the book doesn't rank the runs. If a busy week leaves room for only 2 of them, you'll probably guess right that the long run and Thursday's session come first. The book implies it but doesn't say so. There's no rule for a missed week either. In a 12-week plan that opens at full stretch, a lost week costs more than it would in a longer build, and deciding whether to repeat it or move on is left to your judgment.

Will it get you ready for race day?

A marathon asks whether your legs can keep working late in the race, long after the early miles felt easy. That's what the long run builds, and nothing shorter and faster can stand in for it. The race also asks you to hold a steady, strong effort for hours, and threshold fitness is raised by practicing at threshold.

This plan gives you both. The long runs reach 18 to 22 miles in weeks 5, 7 and 9, and the last of them falls 3 weeks before the race. Threshold work runs through the whole plan, from short repeats to tempo runs at a comfortably hard effort. For most recreational marathoners, race pace sits below threshold, so the plan works on both sides of it. Threshold sessions raise the ceiling, and goal-pace running teaches you the effort you'll actually race at.

For a Speedster, that goal-pace work is the heart of the plan. It starts small, with the closing 3 to 5 miles of the very first long run, and peaks with the 10 to 12 mile run in week 9. By race day, you'll have felt goal pace on tired legs many times, the stretch where a fast runner's marathon tends to slip away.

The finish is well judged. The last 3 weeks get lighter, and race week drops to about a third of the biggest week, so you arrive fresh. A taper like this makes runners measurably faster on race day. In weeks 6, 8 and 10, the book lets you swap the long run for a 10K to half marathon tune-up race. That gives you a fresh result to check your goal against, and a real race to pace, which may help most as a pacing rehearsal.

Are the workouts varied enough?

Yes. The Thursday session changes nearly every week, and so does the long run.

One Thursday is 400s, another is 2 long stretches at goal pace, another a set of mile repeats. Sundays can be steady, finish fast, or climb in thirds from easy to goal pace. That's a lot of ways to be fit, and mixing clearly hard sessions into easy running builds endurance better than a steady diet of medium effort.

For a Speedster, the short repeats in the early weeks will feel like home. The plan uses them as a way in, then spends its second half on long, steady running at goal pace, the kind a fast runner tends to skip. Read that way, the schedule keeps your speed in the week while giving most of the time to the endurance side of the race.

Four of every 5 miles stay easy, and that's what lets the variety work. Easy miles form the base that carries the harder sessions and lets your body absorb them. With 1 hard day most weeks, plus the long run, each session gets your full effort.