The 5k has become one of the most popular ways to measure everyday fitness – and for good reason. It’s long enough to challenge your endurance, but short enough to reveal how efficiently you move, recover and pace yourself under fatigue. While many people focus simply on finishing without walking, your 5k time can offer useful insight into your aerobic fitness as you move through your 40s.
That said, being fit in your 40s doesn’t mean chasing personal bests from your 20s. Consistently running a solid 5k is less about elite performance and more about maintaining endurance and overall health. The good news is that with regular training, a strong 5k time is still very achievable.
The Average 5K Time for Men in Their 40s
According to benchmark data from Running Level, average 5k times for men in their 40s break down as follows:
Of course, 5k times vary depending on training experience, injury history and overall health. Data from Running Level suggests recreational male runners in their 40s average around 24 minutes for 5k although this is likely quicker than the wider population average given the data comes from running enthusiasts.
It’s also important to remember that these numbers are simply benchmarks to work towards. For new runners, finishing a 5k at all is an achievement regardless of time.
How to Improve Your 5K Time in Your 40s
According to running coach Lee Grantham, it’s possible to take five minutes off your 5k time with the right programme. He believes many runners overcomplicate training instead of focusing on consistency and recovery.
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In a YouTube video, Grantham explains that his plan gradually increases interval volume across three phases, progressing from shorter repetitions towards longer race-specific efforts. He says the sessions should feel controlled rather than all-out, while also stressing the importance of easy running and recovery between harder workouts.
‘What we put in between is the recovery runs and easy runs that accelerate the recovery,’ he says – something that becomes increasingly important with age.
While ambitious, the plan’s emphasis on pacing and recovery could make it realistic for many runners in their 40s.
Phase 1
Week 1: 12 x 500m (60-second rest)
Week 2: 6 x 1k (60-second rest)
Week 3: 3 x 2k (60-second rest)
Sunday: 12-14k conversational long run
Phase 2
Week 4: 14 x 500m (60-second rest)
Week 5: 7 x 1k (60-second rest)
Week 6: 3 x 2k + 1 x 1k (60-second rest)
Sunday: Long run with 6 x 1k Zone 3 efforts
Phase 3
Week 7: 16 x 500m (60-second rest)
Week 8: 8 x 1k (60-second rest)
Week 9: 4 x 2k (60-second rest)
Sunday: Long run with 3 x 2k Zone 3 efforts
Kate is a fitness writer for Men’s Health UK where she contributes regular workouts, training tips and nutrition guides. She has a post graduate diploma in Sports Performance Nutrition and before joining Men’s Health she was a nutritionist, fitness writer and personal trainer with over 5k hours coaching on the gym floor. Kate has a keen interest in volunteering for animal shelters and when she isn’t lifting weights in her garden, she can be found walking her rescue dog.
