Running Plan Review Hal Higdon Half Marathon: Intermediate 1

Does it build you up smartly?

If your first half came off one of Higdon's novice grids, this plan will feel familiar in the best way: the same clean weeks, a little longer and a little harder. The mileage climbs, the long run grows by a mile nearly every week, 2 lighter weeks fall inside the build, and the plan tapers at the end. His idea is simple and appealing: run your goal pace often enough, and by race day it feels like your own.

But the hard work never changes its emphasis. It also starts sooner than you might expect. Week 2 already holds 7 miles at goal pace across 2 runs, more than weeks 4 or 5, and every hard training run after that is the same session, mostly just longer. There's no stretch of faster running to build on first, and no sharpening late. Training that changes its emphasis from block to block, from base to build to peak to taper, tends to produce better races than training held at one constant load. Higdon's load does change, but the kind of hard work inside it doesn't.

Each session is also bare. The schedule gives a distance and the instruction to run it at goal pace, and nothing next to it says how to start, how it should feel, or what it's for.

The lighter weeks come with a catch too. Weeks 6 and 9 do drop the mileage, but each ends with a race on Sunday, so the break finishes at full effort.

Does it protect you from injury?

Partly. The plan keeps its hard runs apart and gives you a day off every week, but it leaves out the warm-up and the strength work, and it climbs sharply in the middle.

The good parts first. Friday is always a day off, and a goal-pace run never lands the day after another one. The book also covers how to handle injuries, including a chapter on pool running for when you can't run on the road.

But the schedule never mentions a warm-up. Not before the 7- and 8-mile goal-pace runs, and not before the 5K or the 10K. Followed as written, you go straight from standing still to race pace. A mile or so of easy running first is a small habit, but you have to add it yourself.

Strength is missing as well. The book suggests making time for it, but gives no program, and the schedule has no slot for it. That's a real gap, because regular strength training lowers the risk of sports injuries more than stretching alone.

The riskiest week is week 8. It adds a second goal-pace run to a week that already climbed, so you carry 12 miles at race pace plus a 10-mile long run on legs that had a lighter, race-ending week only 2 weeks before. Sharp jumps in weekly running raise the risk of getting hurt, and small aches that hang around from one run to the next seem to raise the odds of a real injury. If a calf or a heel is still talking to you on the Thursday of week 7, ease off before week 8, not after it.

What happens when you miss a day?

Twelve weeks is long enough for something to go sideways: a cold, a trip, a week when running doesn't fit. What helps then is a plan that makes the next decision easy.

This one gives you room to move. With Friday off and Monday given to cross-training, there are 2 days a week without a run, so a missed run usually has somewhere to go. Higdon is gentle about it, too, and it's part of why his plans feel doable. Swap days around as you need to, and missing a single day is fine, as long as you don't miss two in a row.

But past that, you're on your own. Lose a whole week to illness and nothing tells you whether to make it up or let it go. The book hints that the long run matters most but never puts the runs in order, so in a short week you're guessing which to drop. And what each run is for is explained across many chapters of the book, not next to the schedule where you'd need it.

Will it get you ready for race day?

Yes, for the most part. By race week you'll know race pace in your legs, and you'll arrive rested enough to run it.

The long run builds patiently, a mile at a time, to 12 miles on the Sunday before race week. The 2 races do a job that's easy to miss. You choose your goal pace before week 2, when the first goal-pace runs begin, and the 5K in week 6 is the first real test of whether that goal is right. If it says you aimed too high, adjust there, while 6 weeks remain. And the last 2 weeks back off, which pays off: a short taper before a goal race tends to bring better race results than training straight through.

But apart from the 2 races, nothing in the training is faster than goal pace. Most coaches would lift a half marathoner's race pace with some steady running a notch quicker than it, at a tempo effort, and this plan has none. Gains at threshold are specific to the pace you train them at, so a plan that never visits that effort does little to train it. The result is a goal pace that feels familiar by race day, but not one that has become any easier to hold.

Are the workouts varied enough?

In places. You'll do easy runs, long runs, cross-training and 2 races, and the schedule is easy to follow. But the hard training runs are all one kind.

Mixing easy running with clearly hard efforts builds endurance better than long stretches of steady, moderately hard running, and runners tend to improve most when easy days are clearly easy and hard days clearly hard. Goal pace for a half sits in that moderately hard middle. It's tiring enough to need recovery, but on its own it doesn't push your ceiling up or sharpen your stride.

Here, outside the 2 races, every hard training day is that middle effort. There are no short, fast repeats, no hills and no strides on the schedule. In the biggest weeks, more than a third of your running is at goal pace. The Monday cross-training helps a little, since it adds a different kind of work without more pounding on your legs.

Strides would be the easiest fix. A few short, relaxed sprints at the end of an easy run tend to make runners more efficient. They cost only minutes, and they'd give this plan the fast running it otherwise lacks. The book mentions them as part of a warm-up, but they never appear on the schedule.