Once you’ve jogged your way through a fun run or eased across the finish line at a charity race, it’s natural to start wondering: How fast can I really go if I give it everything over 5 kilometres? (For those unfamiliar with the metric system, that’s just over 3 kilometres.) The 5K is the perfect distance to test your speed, with most runners aiming to finish in under 30 minutes. Plus, there are plenty of opportunities to try your hand at a time trial, as the 5K is one of the most popular race distances in South Africa and globally.
Many runners make the mistake of jumping straight into a marathon for their first race, but aiming to run a fast 5K is a smart choice. According to expert coaches, “The faster you run, the more oxygen you consume,” says coach Jess Woods. “So, training for a fast 5K demands a high aerobic capacity (VO2 max) and the ability to sustain that high intensity throughout the race (lactate threshold).” Your training will need to focus on improving your VO2 max with high-intensity intervals at your race pace, or even faster. “Think of it like the size of a car engine; we want a really powerful engine for the 5K,” Woods says.
In addition to that, you’ll need to improve your lactate threshold—the ability to maintain a high intensity over an extended period—which will require tempo runs to help you build endurance.
If you’re ready to get started, here’s the plan: over six weeks, we’ll help you build the speed and fitness you need to crush your 5K. But if you’re just starting out and haven’t raced before, it’s best to get more experience first.
Remember, even though the 5K is a shorter distance, it still demands respect. “Just because it’s shorter doesn’t mean it’s any easier,” warns Nick Willis, an Olympic medalist and coach. “In fact, if you push too hard too early, the 5K can feel even more painful than a marathon in a different way.”
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To avoid this, proper preparation is key. While you don’t need to train for long-distance runs like you would for a marathon, you’ll still need to put in the work to perform at your best. Jes Woods, a Nike Running coach, emphasises that a good 5K program should be highly focused on building speed and endurance in a structured way.
The 6-Week 5K Plan
The first thing to know about your training plan is that you’ll be building up your kilometres (how far you run) and fitness for just under six weeks. This period will last around four and a half weeks, according to Coach Willis. Then, you’ll taper—reducing your kilometres—during the last 10 days before your race, allowing you to peak for a personal best (PB) performance.
Monitoring your weekly kilometres is key, so make sure you track how much you’re running as part of the plan. Willis suggests starting with a target distance for your long run, then structuring the rest of the week’s sessions to meet your total goal for the week. For example, if you aim for a total of 32 km in Week 1, you could start with a 7.5 km long run, then spread the remaining 24.5 km across your other runs.
Each week, you’ll increase your total by up to 11 km (with no more than 3.5 km added to your long run, and the remaining distance split across the other sessions). So, the plan might look like this: 43 km in Week 2, 55 km in Week 3, 68 km in Week 4, and 80 km in Week 5. In Week 6, your volume will taper down to 56 km. Willis points out that he has used long runs of up to 29 km in peak training, but less experienced runners might find it better to cap long runs at 16 to 19 km.
Coach Woods sometimes advises her athletes to focus on time rather than distance for their long runs. This can help reduce the mental pressure of hitting high kilometre targets. She recommends starting long runs at 60 to 75 minutes at an easy to moderate pace at the beginning of your plan, gradually building to 75 to 90 minutes. “For some, it’s hard to think in terms of time instead of kilometres, so aim for 9 to 16 km at the start of your training and gradually increase to a max of 16 to 22 km,” she says. “A key tip is for experienced runners to incorporate ‘fast finish’ long runs midway through the plan—this involves picking up the pace in the final part of the run to work on fatigue resistance.”
Using total kilometres or time instead of specifying the number of days to run each week is also important for injury prevention. Willis emphasises that monitoring your total volume can help avoid injuries like bone stress or tendon strain. “By increasing your kilometres by no more than 11 km each week, you’ll stay within a safe zone, and your body will have enough time to adapt.”
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There will be days when you run several days in a row, but you can reduce burnout by alternating harder training days with lighter ones (more on that shortly). At least one rest day per week is essential for recovery.
How to Pick Your Goal Pace
Ideally, anyone taking on this plan will have run a 5K before and be running regularly. If you’ve done that, you can use your past race experience to determine your goal pace. However, if you haven’t raced before or have taken a break from running, Coach Willis suggests using a pace calculator to set a realistic goal pace based on your fitness level.
You can also solve this problem without running a full-speed 5K before race day by doing a shorter practice run. “If you’re not sure about a goal pace, I’d rather you run a time trial—like a one-kilometre time trial—and then use an online race predictor to get a more precise 5K goal pace,” says Woods.
Just make sure that you aren’t aiming for a target time that doesn’t align with your current situation. “You need to take a realistic approach, like, ‘Where am I now compared to when I did it 15 years ago?’” he says. “Are you carrying a bit more weight? Are you more stressed? Do you have three kids, and you can’t get out as much as you used to? Be practical with that.”
The Types of Workouts You Can Use to Hit Your Kilometre Targets
To hit your kilometre targets, you’ll need to incorporate different types of workouts into your weekly training. We’ve already mentioned long runs, which are exactly what they sound like: running further than your other sessions, usually at a comfortable pace.
Willis says that his favourite type of workout to build fitness is a tempo run. These should be done at about 75 percent effort. If you’re not sure what that feels like, Willis offers some guidance: “You’re running fast enough that you can’t carry on a conversation, but when you finish, you’re like, ‘I could have kept going for another kilometre or two at that pace if I had to.’” Start with a warm-up, then aim to run 15 to 20 minutes at that 75 percent pace. If running continuously for 15 to 20 minutes is too challenging, you can break it up into three or four five-minute intervals, with a short rest between each. You should do this workout once a week.
Tempo workouts: 20 minutes at 75 percent effort or 4 rounds of 5 minutes at 75 percent effort with 1-minute rest in between.
Another effective workout to increase your kilometres is hill running. Find a hill, then push yourself hard while running uphill, then jog back down and repeat. (You can also do this on a treadmill by adjusting the incline.) Willis advises aiming for 8 to 12 repetitions of running uphill for 60 seconds. “The goal is to maintain or even improve your intensity as you progress through the workout,” he says. Push hard but manage your efforts so you can finish the workout strong.
Hill workouts: 10 rounds of 1 minute uphill at 80 percent effort with an easy jog down for recovery.
You can also do easy or shakeout runs, which will be more relaxed than your speed work and shorter than your long runs. Woods suggests keeping these runs at “conversation pace” early in the training cycle. Ramp up the speed as the program progresses, but remember—these are meant to be easy.
When you slot those into your training, Willis suggests adding an extra component he calls “the connector and final building block” to your program: strides. These are short, progressive bursts where you build up to your race pace and beyond. Start slow for your first few steps, then run faster until you reach your race effort by the time you finish.
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“You can get your legs turning over and have your muscles and mechanics experiencing the race pace that you’d be aiming for in a 5K,” Willis says. Add four or five strides of about 80 to 100 metres to cap off those lower-effort days to help build the fitness you’ll need to finish strong in your race.
Stride workout: 5 rounds of 80 to 100 metres, progressively building pace.
During your taper period (10 days before race day), you’ll need to switch up your approach. This is when you’ll use interval training, a type of workout that pairs intense efforts with recovery periods. This might look like 10 sets of 400-metre repeats on the track with a minute’s rest between each run, or running on the road hard for one minute, then resting for one minute. “You’re aiming for stuff that adds up to around 4,000 or 5,000 metres of total work at race effort,” Willis says.
Interval workouts: 10 rounds of 1 minute at 85 percent effort with 1-minute recovery; 6 rounds of 2 minutes at 85 percent effort with 2 minutes recovery; 3 rounds of 4 minutes at 85 percent with 3 minutes recovery.
Once you’re about four days from your race, you should back off significantly. If you do anything at all, keep it slow.
Confused about how to put all these pieces together? Woods suggests structuring your week like this:
- Monday: Rest day, focus on recovery.
- Tuesday: Hard interval work (VO2 max workouts).
- Wednesday: Recovery run and/or cross-training.
- Thursday: Tempo run (lactate threshold work).
- Friday: Recovery run.
- Saturday: Long run.
- Sunday: Easy run and strides.
How to Run Your Fast 5K Race
Once you’ve trained and tapered, the last thing to do is approach race day with the right mindset. It starts even before the gun goes off, by warming up your body properly—more than just static stretches and a jog around the starting area. “You want to prepare your body with some strenuous work so it’s not a shock to your system when your heart rate increases at the start,” says Willis.
To do that, he suggests a slow jog for 15 to 20 minutes about 45 minutes before the race. If you’re at a large event with crowded corrals, the later you can make your way to the starting line, the better—Willis recommends arriving about 20 minutes before the start. In the last 10 minutes before your race, aim to get your heart rate up. If you’re able to leave the starting area, do a few sets of strides. Woods advises that these strides should be focused on speed: “End with three to six 20-second fast strides, with an easy 60-second jog or shuffle after each,” she suggests.
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Woods also wants runners to remember that just because 5K runs are usually fairly laid-back affairs, if you’re aiming for a goal, it’s time to lock in. Your buddy might just be there for the medal—but you’ve dedicated an entire training cycle for your personal best. “Do what is best for you on race day,” she advises. “For me personally, I don’t want to waste energy on conversations and socialising, so I prefer to warm up solo with my noise-cancelling headphones. No hard feelings on race day, be selfish.”
If you’re boxed into a corral early, try two minutes of bodyweight exercises like star jumps, jumping jacks, or running in place. After that, rest for the final few minutes before the start. “That’s when you need to calm your body down to allow it to recover from those exercises. But it’s still recent enough that when the gun goes off, it won’t be a sudden shock to your system,” says Willis.
Once the race starts, relax for the first kilometre and let your hard-earned training take over as you ease into your target pace. “You want that first kilometre to go as controlled as you possibly can,” Willis says. “You want to black out.” When he races, he says he picks a “long song” like “Hotel California” to mentally distract himself and take his mind off the pressure of the first part of the race. “I don’t want to use up those emotional reserves I have,” he says. “The middle part of the race, that’s the hardest part where you really need to focus.” To stay engaged, Willis says he talks to himself to push through the pain, affirming how he’s done the work and just needs to keep going.
“When you hit that final kilometre, that’s when all hell breaks loose,” Willis says. “That’s where you really dig deep. You get to decide who you want to be in that moment.” You’ll fight to maintain your pace, but don’t hold any energy in reserve. “If you’ve got a kick left, that means you’ve held too much back,” he says. “Just summoning the strength to hold pace is really how it works out.” If you feel like you still have something left at the end, he suggests pushing harder with about 1.5 kilometres to go.
Once you cross the finish line, you might feel the pain from giving it your all—but you might also wonder how long you should wait before stepping up to the start line again to improve your time. The good news is: You don’t have to wait long.
“The beauty of a 5K is you can put another one on the calendar pretty soon after,” Willis says. “It’s not like a marathon where you can only do a maximum of two or three a year. You could do another one in a month or even three weeks, and you just need enough time to recharge your emotional energy before you’re ready to put yourself through it again.”
Your Next Challenge: Join the Absa 10K Run Your City Series
Now that your training plan is ready, you can put all your hard work to the test by joining the Absa 10K Run Your City Series in your nearest city. It’s a fantastic opportunity to challenge yourself and see how your training has paid off. Whether you’re racing for a personal best or just enjoying the event, the series offers an exciting way to experience the thrill of race day. Check out the dates and cities below:
- Gqeberha: 13 April 2025
- Cape Town: 11 May 2025
- Durban: 13 July 2025
- Tshwane: 24 August 2025
- Johannesburg: 24 September 2025
Visit Run Your City Series to find out more and sign up!
This article was originally published on Men’s Health US – additional reporting and products added by the Men’s Health SA team.
