Running Plan Review Greg McMillan Half Marathon: Intermediate (Endurance Monster)

Does it build you up smartly?

Mostly, yes. The weeks come in a sound order, but the schedule hands you each workout without its reason.

Thursday's hill session in week 1 is a single line: 6 to 8 repeats of 60 to 75 seconds uphill, jog back down. Nothing on the page says what the hills are building, or that you should warm up first. The book teaches both, in its chapter on workouts and in its advice on hard sessions, but none of it sits next to the run itself. The blocks aren't named either. You can see the plan shift from hills to steadier work in week 4 if you look, but nothing tells you a new stage has started, or why.

What the page does get right is the order. Training in stages, each with its own emphasis, tends to produce better races than repeating the same mix every week, and this plan moves through its stages cleanly. The first 3 weeks are hill work, with the count growing from 6 to 8 repeats up to 10 to 12. From week 4 the work turns sustained and closer to race effort, and it stays there until the taper.

The middle of the plan also gives you room to absorb the work. The running eases off in weeks 4, 6 and 8, so through the heart of the build you're never more than a week from a lighter one. Those lighter weeks are when recent training turns into fitness, and they lower your odds of getting hurt along the way.

Does it protect you from injury?

Mostly, but you'll need to add the strength work yourself, and two weeks call for care.

Strength first. McMillan wants you doing it, but none of it is on the schedule, and when to fit it in around Thursday's session and Sunday's long run is left to you. It's worth the trouble. Strength training lowers injury risk more than stretching or balance work alone. It also makes each stride cost less energy, and about two sessions a week on separate days is enough for most runners to get that gain.

If long, easy running is your strength, the plan's peak weeks will feel like familiar ground. The risk sits in how fast you get there, and it arrives in two steps. Injuries often follow a sharp jump in training, and week 5 brings the plan's biggest, in both miles and pace. It comes straight out of the first lighter week with a lot more running, and with the plan's first running at goal pace: 6 to 8 miles of it, all on one Thursday. Week 7 is the first week with three hard days. That step is more about pace than miles, and mileage alone misses much of the strain that faster running adds. Go into both weeks rested, and keep the easy days around them truly easy.

Outside those two weeks, the build is careful. Weekly running grows a little at a time, the hard days never fall back to back, and every week starts with a day off. The book also teaches you to read early warning signs and back off when they show up, which matters more than any schedule if a small ache starts to linger.

What happens when you miss a day?

A missed week matters less than what you do the week after. This plan doesn't tell you.

There's no ranked list of which sessions to keep when a week gets short, and nothing on how to pick up after a week you lose entirely. The book covers a bad day well. It lets you move or skip a key workout when you're not up to it. But when a cold takes a whole week, the replanning is yours.

Day to day, though, the plan bends well. Most runs are a range of minutes, and the book lets you take the low end when you're tired. Two days a week are yours to run, cross-train or rest, so a tired day doesn't have to cost you a session. And the effort guidance is strong. McMillan uses four training zones, adapted from his mentor David Martin, and asks you to run by how you feel on the day as much as by the numbers. Zones tied to your own thresholds are a sound way to set how hard each run should be, and his book explains what each one does, so over 12 weeks you learn to make these calls yourself.

Will it get you ready for race day?

Yes. Both the Thursday work and the long run grow into the race.

McMillan builds the Thursday sessions around threshold, the effort a half marathon is raced just under, and threshold gains come from training at that effort. The work comes in several forms. Steady runs just under threshold grow from 4 miles in week 4 to 6 miles in week 11. Repeats of 2 miles at goal pace land in weeks 5 and 9. Tempo runs and repeats of 1,000 meters fill the weeks between.

The long run builds from 75 minutes to 12 to 14 easy miles in weeks 8 and 10, so the distance holds no surprises on race day. In weeks 7, 9 and 11, it ends with 2 to 4 miles at goal pace and a fast finish. That's practice at holding race effort on legs that are already tired, which is what the last few miles of a half will ask of you. Each of those Sundays can be a 5K or 10K race instead.

Then the last 2 weeks ease off, with a short tempo run in race week to keep you sharp. Runners who ease off for 1 to 3 weeks before a race tend to race faster.

Are the workouts varied enough?

Yes, and the mix is built around the runner this version is for.

You might expect a plan for endurance runners to patch the gap with short, fast speed work. This one builds on the gift instead. After 3 weeks of hill repeats, almost every hard session is sustained: progression runs, steady runs, tempo runs, repeats of 1,000 meters and of 2 miles, and long runs that finish at goal pace. Over the weeks the sustained work stretches out: the steady run grows from 4 miles to 6, and the long runs in the second half end with miles at goal pace, until race effort becomes a place you know well.

Everything else stays easy, about five of every six miles. Keeping easy days easy and hard days clearly hard tends to bring more improvement than letting every run drift toward a middling effort, and this plan keeps that line clear from the first week to the last.