Build your lactate threshold and mental toughness with sustained hard efforts
A tempo run is a sustained effort at a "comfortably hard" pace - hard enough that you're working, but controlled enough that you can maintain it for 20-40 minutes. It's the sweet spot between easy running and all-out racing.
The magic of tempo runs lies in their ability to train your body to clear lactate more efficiently while running at faster paces. This translates directly to better race performances, especially in events lasting 10K to half marathon.
Unlike easy runs where you can chat comfortably, or intervals where you're gasping between reps, tempo runs teach you to sustain a challenging pace with focused breathing and mental discipline.
Tempo runs target your lactate threshold - the pace at which lactate begins accumulating faster than your body can clear it. By training at or near this threshold, you teach your body to:
• Clear lactate more efficiently - Your muscles become better at using lactate as fuel
• Increase mitochondrial density - More energy-producing powerhouses in your muscle cells
• Improve running economy - You become more efficient at your goal race paces
• Build capillary networks - Better oxygen delivery to working muscles
• Develop race-pace confidence - You learn what sustainable speed feels like
• Build mental toughness - Sustaining discomfort trains your mind as much as your body
• Practice pacing discipline - You learn to resist going out too fast
The key to effective tempo runs is nailing the pace - not too fast, not too slow. Here's how to dial it in:
• Recent race time: Your current 10K pace, or halfway between 10K and half marathon pace
• Talk test: You can speak in short phrases (3-5 words), but not hold a conversation
• RPE: 7-8 out of 10 - "comfortably hard" or "controlled discomfort"
• Breathing: Rhythmic and controlled, but definitely working
Start with a proper warmup of 10-15 minutes easy running. This is crucial - jumping into tempo pace cold is a recipe for poor performance and potential injury.
Build into your tempo pace gradually over the first 2-3 minutes. Don't rush this - you want to settle into the pace, not shock your system.
Maintain steady effort throughout. The pace should feel challenging but sustainable. If you're slowing significantly in the final minutes, you started too fast.
Finish with 10 minutes of easy cooldown running to help clear lactate and begin recovery.
Understanding the sensations of a tempo run helps you pace correctly and build confidence in the workout:
• First 5 minutes: "Is this too easy?" - The pace should feel controlled as your body warms up
• Minutes 5-15: "This is work, but I've got this" - You're settled in, breathing hard but rhythmically
• Final 5-10 minutes: "This is uncomfortable, but manageable" - You're digging deep but maintaining form
• Last 2 minutes: "I could probably hold this for another couple minutes if I had to" - You finish strong but tired
Your breathing should be controlled but labored - typically 2 steps inhale, 2 steps exhale, or 3-2 pattern. Heart rate typically sits at 85-90% of max HR.
• If you're gasping or can't maintain form - slow down
• If you're chatting comfortably - speed up
• If you're dramatically slowing in the final 5 minutes - started too fast
Easy pace running with gradual progression. Finish with 4-6 short accelerations to prepare for tempo pace.
Sustained effort at 10K-HM pace. Comfortably hard - you can speak in short phrases but not hold a conversation.
Easy jogging to gradually lower heart rate and begin recovery process. Stay loose and relaxed.
Never skip the warmup and cooldown - they're as important as the tempo portion itself.
• Minutes 1-5: Very easy pace, focus on smooth form and relaxed breathing
• Minutes 5-10: Easy pace, start to feel your legs wake up
• Minutes 10-13: Build to moderate pace
• Minutes 13-15: 4-6 short accelerations (20-30 seconds) building to tempo pace
• Start immediately after finishing your tempo portion - don't stop suddenly
• First 3-5 minutes: Slow jog, let heart rate gradually come down
• Remaining time: Easy pace, focusing on smooth breathing and loose form
• Optional: Include 4-6 x 20-second strides at the end if legs feel good
Starting too fast - The first 5 minutes should feel almost too easy. Many runners blow up because they hit tempo pace too quickly.
Inconsistent pacing - Tempo runs should be even-paced, not a gradual fade or wild fluctuations.
Skipping the warmup - Jumping into tempo pace cold increases injury risk and reduces workout quality.
Going too long - More is not better. A 20-minute tempo at proper intensity beats a 40-minute run at an easier pace.
Poor running form - Fatigue causes form breakdown. Stay focused on posture, arm swing, and cadence throughout.
Not adjusting for conditions - Hot weather, hills, or tired legs all warrant pace adjustments. Listen to your body.
Focus on learning the feel of tempo pace with shorter efforts
15 minutes easy warmup
3 x 5 minutes at tempo pace with 2 minutes easy between
10 minutes easy cooldown
Build endurance at threshold with sustained efforts
15 minutes easy warmup
20-25 minutes continuous at tempo pace
10-15 minutes easy cooldown
Push lactate threshold with longer sustained efforts
15 minutes easy warmup with strides
35-40 minutes continuous at tempo pace
10-15 minutes easy cooldown
Run tempo workouts on slightly rolling terrain to simulate race conditions and build strength.
Use a track or measured route for your first few tempo runs to learn proper pacing without constantly checking your watch.
Schedule tempo runs on days when you're well-rested - they're too important to do on tired legs.
If you're training for a half marathon or marathon, do your tempo runs on similar terrain to your goal race.
Practice your race-day fueling strategy during longer tempo runs (30+ minutes).
Pay attention to external conditions: heat, humidity, and hills all warrant pace adjustments of 10-30 seconds per kilometer.
Browse our workout library to find structured tempo run workouts that match your fitness level and goals.
Browse Tempo WorkoutsThese workouts are for educational purposes only. Always consult with your personal coach or qualified training professional before starting any new training program. They can provide personalized guidance based on your fitness level, goals, and individual needs.
