Running Plan Review Greg McMillan Half Marathon: Advanced (Speedster)

Does it build you up smartly?

Good training builds in blocks, each one preparing the body for the next, and plans organized this way produce better races than training at one constant load. Inside those blocks, a lighter week every 3 or 4 weeks gives the body time to absorb the recent work and turn it into fitness.

McMillan's books allow a down week every 4th week, and weeks 4 and 8 look the part: shorter easy runs, an optional Monday, strides in place of the fartlek. The design has a clear logic. Clearing away the fartlek and trimming the easy days leaves room for one big job, and in week 4 that job is the plan's first goal-pace session, 3 repeats of 3 miles. But that session is long enough that the week's total running barely drops, and it's the longest hard running the plan has asked for so far. Week 8 repeats the pattern with 2 repeats of 4 miles. So the rhythm runs build, build, build, sharpen, rather than build, build, build, rest. The first week with clearly less running is week 11, when the taper begins.

The schedule also says what to run, but never why. Each session is a single line: the reps, the jogs, and nothing else. There's no word on what a workout is building and no warm-up. The book explains its workout codes and what each session does in a separate chapter, but on the morning of the run, that knowledge has to come with you.

The order of the blocks, though, is sound. The first 3 weeks build power and leg speed with hills and fartlek. The middle weeks bring sustained hard running: mile repeats, a progression run, long tempo intervals. The last 4 build weeks sharpen toward the race with faster repeats and longer stretches at goal pace. A runner who reads the sessions can see where each block starts, even without labels.

Does it protect you from injury?

Fairly well, with 2 gaps worth knowing before you start: no real lighter week until the taper, and no strength work on the calendar.

Much of the plan does protect you. No 2 hard sessions ever land on consecutive days. Tuesday's and Thursday's sessions always have an easy day between them, and Sunday's long run has 2 before it. Across the 12 weeks, the load builds without a sudden spike against the weeks before it.

But week 4 never fully rests you, and week 5 is the plan's biggest step. The running rises by nearly a quarter, and a new kind of workout arrives at the same time: an 80 to 90 minute progression run that ends fast. Mile repeats follow on Thursday, and Sunday's long run finishes at tempo effort. That's 3 hard days where week 4 had 1. Miles alone undercount a week like that, because so much of the extra running is hard, and hard running loads your legs more than the distance shows.

Strength is left entirely to you. The book includes a sample routine and points to a full program online, but the schedule leaves it off, and with 6 or 7 runs in most weeks, there's no obvious slot for it. That matters. Strength training cuts sports injuries substantially, more than stretching does, and it makes trained runners more efficient as well.

The book's best protection is its teaching on warning signs: what an early one feels like and what to do about it. Week 5 is where a Speedster needs that most. Every hard day that week rewards running fast, and an ache that hangs around after Tuesday's progression run is easy to wave off when Thursday's mile repeats start well. Small aches that linger appear to raise the odds of a full injury, so backing off that week, even at the cost of a session, gives you better odds of reaching the sharpening weeks healthy.

What happens when you miss a day?

The likeliest disruption in this plan is a lost hard session. Say Thursday's 1200s in week 7 fall through. Friday is the only open slot, and it sits 2 days before a long run that finishes at goal pace, with only Saturday's easy run between them, so moving the session there sends you into Sunday on tired legs. Dropping it keeps Sunday whole but loses the week's speed work.

But the plan doesn't help you choose. The book implies the long run and key sessions come first, yet it never sets out an order for what to cut in a short week, and nothing covers a missed week: whether to run it late, drop it, or start the next week gently. Turning the book's general advice into a new week is up to you.

What does bend is the day itself. Almost every run is a range, 50 to 70 minutes rather than 60, and the book tells you to take the low end when you're tired. It allows skipping or moving a key workout on a bad day. And because the plan runs on effort, using 4 training zones McMillan adapted from his mentor David Martin, a slow day doesn't throw your training off.

Your paces can keep up with you, too. The Sundays of weeks 7, 9 and 11 offer a 5K or 10K tune-up race in place of the long run, and a fresh result run through the calculator re-checks your goal. The targets follow your fitness instead of staying fixed to your first result.

Will it get you ready for race day?

Goal pace in this plan grows from repeats into an unbroken run, and you practice it on tired legs. That is the preparation a half asks for.

Holding a hard pace for 13.1 miles depends heavily on your threshold, and threshold fitness is specific to the pace you train it at. A plan that wants you to hold goal pace has to make you run it, often and for longer each time.

This one does. Goal pace first arrives as long repeats, the repeats stretch out, and by week 10 they join into 6 to 8 unbroken miles. Tempo intervals and a progression run fill in around it. Three of the Sunday long runs end with miles at goal pace, so you learn what the pace feels like when your legs already want to stop. By race day, it's a rhythm your body has rehearsed rather than a number on a watch.

The long run fits the distance. From week 6 it's set in miles and reaches 14 to 18, three times over, so 13.1 miles is a distance your legs already know. The taper then trims the running week by week. Runners race 2 to 6 percent faster after a 1 to 3 week taper, and this one keeps a few short, sharp sessions, down to cruise repeats on the Wednesday of race week, so your legs arrive feeling quick rather than flat.

Are the workouts varied enough?

Fitness for a half comes from two directions: a big base of easy running, and hard sessions different enough from one another that each pushes on something new. Easy miles carry most of the load and help the body adapt to the harder work, and mixing clearly hard sessions into easy running builds endurance better than long stretches of medium-hard.

This plan gets both right. The hard days run from 1-minute fartlek pieces to 2000-meter tempo intervals, with hills, mile repeats, a progression run and long stretches at goal pace in between, 20 hard sessions across the 12 weeks.

About 86 percent of all the running is easy. For a runner whose strength is speed, that's where much of the plan's real work happens. The speed is already there. The long, easy hours are what build an engine big enough to carry it through the last 3 miles of a half. Keeping easy days easy and hard days hard is what lets each kind of day do its job.