Best Tempo Run Workouts for Half Marathon 2026

The half marathon is a threshold race. Unlike the 5K (which is run above threshold) or the marathon (which is run below it), the half marathon sits right at or slightly below your lactate threshold - the pace where your body is clearing lactate almost as fast as it’s producing it. This means tempo work isn’t just helpful for half marathon training - it’s the single most specific type of workout you can do.

The five tempo workouts below target different aspects of half marathon fitness. Used together over a training cycle, they’ll teach your body to sustain a faster pace for 13.1 miles and give you the confidence to hold that pace on race day.

The Five Best Tempo Workouts for Half Marathon

Workout	Distance	Pace	Recovery	Total Hard Running	Primary Purpose
Classic Tempo	4-6 miles continuous	Half marathon pace + 10-15 sec/mile	None (continuous)	4-6 miles	Threshold endurance
Progression Tempo	5-7 miles	Easy → HM pace → faster	None (continuous)	5-7 miles	Negative split practice
Cruise Intervals	4-5 x 1 mile	Half marathon pace	60 sec jog	4-5 miles	Quality at threshold
Marathon Pace Tempo	6-10 miles	Goal marathon pace (if applicable)	None (continuous)	6-10 miles	Aerobic endurance
Cut-Down Run	6-8 miles	Start moderate, finish at 5K pace	None (continuous)	6-8 miles	Finishing speed and mental toughness

Understanding Tempo Pace for Half Marathon

Before diving into workouts, let’s define paces clearly. For half marathon training, your key reference points are:

Half marathon pace (HMP): The pace you intend to race at. If your goal is a 1:45 half marathon, that’s 8:00/mile.

Tempo pace: Traditionally defined as the pace you can sustain for about 60 minutes in a race. For most runners, this is very close to - or identical to - half marathon pace. We’ll use these interchangeably.

Marathon pace (MP): About 20-30 seconds per mile slower than HMP.

5K pace: About 30-45 seconds per mile faster than HMP.

All workout paces below are referenced from your goal half marathon pace. Adjust according to your specific targets.

Workout 1: Classic Tempo - The Foundation

The classic tempo run is simple: warm up, run 4-6 miles at a pace that’s 10-15 seconds per mile slower than your goal half marathon pace (or at half marathon pace itself as fitness develops), then cool down.

How to run it: 10-15 min easy warmup → 4-6 miles at tempo pace → 10 min easy cooldown.

Why it works: The classic tempo builds your ability to sustain a challenging pace without rest. It’s the most race-specific session because half marathon racing is sustained, continuous effort. The duration teaches your body to clear lactate efficiently and your mind to stay focused during prolonged discomfort.

Progression over a training cycle: Start at 4 miles of tempo running in early training. Add half a mile every 1-2 weeks. Peak at 6 miles of tempo roughly 3-4 weeks before race day. Then taper back.

Pacing discipline: The most common mistake is running tempo workouts too fast. Tempo pace should feel “comfortably hard” - you can speak a few words but not hold a conversation. If you’re gasping, you’re running at 5K effort, not half marathon effort. Dial it back.

Workout 2: Progression Tempo - Learning to Negative Split

The progression tempo teaches you to start controlled and finish strong - exactly what you want to do in a half marathon race. Running the second half of a race faster than the first (negative splitting) is the most efficient pacing strategy and leads to the best performances.

How to run it: Start at easy pace for 1-2 miles → gradually increase to half marathon pace over the next 2-3 miles → hold HM pace or slightly faster for the final 1-2 miles. Total run: 5-7 miles.

Example for a 1:45 goal (8:00/mile HMP):

Mile 1-2: 8:45-9:00 pace (easy)
Mile 3-4: 8:15-8:30 pace (moderate)
Mile 5: 8:00 pace (HMP)
Mile 6-7: 7:45-7:50 pace (slightly faster than HMP)

Why it works: It ingrains the discipline of holding back early when you feel fresh - which is when most half marathoners make their race-day mistake of starting too fast. It also teaches your body to access faster gears when fatigued, which is exactly what the final miles of a half marathon demand.

Workout 3: Cruise Intervals - Quality at Threshold

Cruise intervals were popularized by running coach Jack Daniels. They’re mile repeats at tempo pace with very short recovery - just enough to reset mentally but not enough to fully recover physiologically. This lets you accumulate more total volume at threshold pace than a continuous tempo while maintaining better form.

How to run it: 10-15 min warmup → 4-5 x 1 mile at half marathon pace → 60 second easy jog between reps → 10 min cooldown.

Why short rest? The 60-second jog is deliberately brief. You don’t fully recover between reps - your HR stays elevated, your lactate stays close to threshold. The intervals blend together into a semi-continuous threshold effort that simulates race conditions while giving you tiny mental resets.

When to use them: Early in a training cycle when continuous 5-6 mile tempos feel daunting, or as a higher-quality session when you want to maintain strict pace on every rep. If your form falls apart in the later miles of a continuous tempo, cruise intervals maintain quality throughout.

Progression: Start with 4 x 1 mile. Build to 5 x 1 mile. Then reduce rest from 60 to 45 seconds. Eventually, you should be able to run the full 5 miles continuously at tempo - which becomes your classic tempo workout.

Workout 4: Marathon Pace Tempo - Building the Aerobic Engine

If you’re training for a half marathon specifically (not a full marathon), you might wonder why marathon pace matters. The answer: building the aerobic base that supports half marathon speed. Long sustained running at marathon pace develops fat oxidation, cardiac output, and muscular endurance - the foundation that lets you hold a faster pace for 13.1 miles.

How to run it: 10 min warmup → 6-10 miles at marathon pace (20-30 sec/mile slower than HMP) → 10 min cooldown. This can also serve as the middle portion of your weekly long run.

Example: For a 1:45 half goal (8:00/mile), marathon pace is approximately 8:20-8:30/mile. Run 8 miles at this pace as a long tempo session.

Why it works for half marathon training: The slightly slower pace allows you to accumulate more training volume at an aerobically demanding intensity without the recovery cost of true threshold running. This builds the endurance engine that supports your faster tempo and race-pace efforts.

When to use it: As a substitute for your long run tempo component, or as a standalone midweek session in the buildup phase of training. Most effective 6-10 weeks before race day.

Workout 5: Cut-Down Run - Finishing Speed and Mental Toughness

The cut-down run starts at a moderate pace and progressively gets faster, finishing at 5K effort. It teaches you to run fast when tired - the exact skill you need for the final 2-3 miles of a half marathon when your body wants to slow down.

How to run it: Start at easy-to-moderate pace and get progressively faster every 1-2 miles, finishing the final mile at 5K pace or faster.

Example for a 1:45 goal (8:00/mile HMP, ~7:20 5K pace):

Miles 1-2: 8:45 pace (easy)
Miles 3-4: 8:15 pace (moderate)
Mile 5-6: 7:45 pace (HMP to slightly faster)
Mile 7-8: 7:20-7:30 pace (5K effort)

Why it works: In a half marathon race, the final miles are where races are won or lost. Runners who can maintain or accelerate their pace in miles 10-13 achieve significantly better times than those who slow down. The cut-down run trains this ability by demanding your fastest running when you’re already fatigued.

Mental benefit: Finishing a workout at 5K pace after 5-6 miles of progressive running builds enormous race-day confidence. You prove to yourself that you can dig deep when tired - and that proof matters when mile 11 gets hard.

How to Structure Tempo Work in Half Marathon Training

A typical half marathon training week includes 1-2 quality sessions. Here’s how tempo work fits:

Base phase (8-12 weeks out): One tempo session per week. Alternate between cruise intervals and marathon pace tempos. Build volume gradually.

Build phase (4-8 weeks out): One tempo session plus one speed session (intervals or hill work). Classic tempos and progression tempos dominate this phase.

Peak phase (2-4 weeks out): Reduce volume but maintain intensity. Shorter, sharper tempos. One cut-down run to simulate race effort.

Taper (1-2 weeks out): Reduce everything. One short tempo (2-3 miles at HMP) to stay sharp without accumulating fatigue.

Common Mistakes in Half Marathon Tempo Training

Running tempos too fast: The most frequent error. Tempo pace should feel controlled - if you’re running your tempos at 5K effort, you’re training the wrong system and accumulating excessive fatigue.

Neglecting easy days: Tempo sessions only work if you’re recovered enough to execute them well. If your easy runs are too fast (the #1 mistake in distance running), your tempo sessions will suffer.

Not progressing: Running the same 4-mile tempo at the same pace for 12 weeks produces stagnation. Increase duration, reduce rest in cruise intervals, or slightly increase pace over time.

Skipping the warmup: Jumping into threshold pace with cold muscles increases injury risk and often leads to a bad first mile that tanks the whole session. Always warm up 10-15 minutes.

Tracking and Tools

A GPS watch with pace alerts helps maintain discipline during tempo sessions - it’s easy to drift 10-15 seconds faster than intended when you’re feeling good. For app-based interval timers and workout builders, check our guide to the best apps for interval training. If you’re following a structured training plan, our roundup of the best apps for marathon training plans covers platforms that program tempo work into broader half marathon plans. And for watch recommendations suited to pace-based training, see our best GPS watch for marathon training guide.

Related reading: Best Interval Training Workouts for 5K Speed 2026

FAQ

How fast should my tempo pace be for half marathon training? Your tempo pace should be approximately your goal half marathon race pace, or 10-15 seconds per mile slower during early training. As fitness builds, tempo pace and goal HMP should converge. If you don’t have a recent race to calibrate from, tempo pace is roughly the pace you could sustain for 60 minutes in an all-out effort.

How many tempo runs per week for half marathon training? One dedicated tempo session per week is sufficient for most runners. Some advanced runners can handle two quality sessions (one tempo, one speed), but this requires adequate easy-day recovery. More isn’t always better - one high-quality tempo beats two mediocre ones done on tired legs.

Should my long run include tempo miles? Yes - this is one of the most effective half marathon training strategies. Running the last 3-5 miles of your long run at half marathon pace simulates race-day fatigue and builds confidence in sustaining pace on tired legs. Start incorporating this 6-8 weeks before race day.

What if I can’t hold tempo pace for the full workout duration? This usually means your target pace is too ambitious, you’re not recovered enough, or conditions (heat, wind, hills) are making the pace harder than usual. Drop to cruise intervals with more rest, or run at the pace you can sustain well. Adjust your target pace for future sessions based on what’s realistic.

Is it better to do tempo on flat routes or hilly routes? Flat routes allow more precise pace control and are better for tracking progress. However, if your race course has hills, include some hilly tempo running in training to prepare specifically for that. For most tempo sessions, flat to gently rolling terrain is ideal - save the hills for hill-specific workouts.