From its very beginning in the 1970s, triathlons have been at the pinnacle of strength conditioning and physical endurance. Triathlons involve swimming, cycling, and running predetermined distances of varying lengths, depending on the race in which the competitor is in. These events range from the 70.3 triathlon (1.9 km swim, 90 km cycle, and 21.1 km run) to the grueling Ironman triathlon 3.86 km swim, 180.25 km cycle, and a 42.20 km run).
Triathlon is one of the world’s most inclusive sports, with people of varying levels of fitness taking part. But, how fit do you actually have to be to take part in a triathlon event? What are some triathlon physical fitness requirements? Keep reading and discover the answers to these questions and more!
Types of Triathlons
Athletes of all sizes, shapes, and backgrounds share a common trait: they are always looking for their next challenge. This search for something ‘new’ has led many people to compete in a triathlon. The back-to-back combination of swimming, cycling, and running is a test of both physical endurance and mental determination.
Whether you’re a coach potato in need of some motivation or a seasoned athlete looking to push your limits, you want to know what exactly you are signing up for. How long does a triathlon last? The answer is, it depends! There are different race options that appeal to different fitness levels and abilities.
- Sprint. The sprint distance is great for beginners. It involves a 750 meter swim, 20 km bicycle ride, and a 5 km run. Many triathletes start with a sprint event and are quickly pulled into the tri lifestyle!
- Olympic Triathlon. Interested in a longer race? Try out an Olympic triathlon! Also known as a ‘standard course’, ‘short course’, or ‘international distance’, it involves a 1.5 km swim, a 40 km bicycle ride, and a 10 km run.
- Half Triathlon. Also known as the 70.3 triathlon, a half triathlon involves a 1.9 km swim, a 90 km bicycle ride, and a 21.1 km run.
- Full Triathlon. A full-triathlon is an epic event that requires participants to complete a 3/8 km swim, a 180.2 km bicycle ride, and a full marathon of 42.2 km run.
Note: You may hear people refer to both the Half and Full Triathlons as ‘Half-Ironman’ or ‘Ironman’ triathlons. Keep in mind that ‘Ironman’ is a brand. Official Ironman races are those organized by the World Triathlon Corporation. There are many other half and full triathlons around the world, and completing any race at those distances is a truly amazing accomplishment.
How fit do you have to be to participate in a sprint distance triathlon?
Whether you’re a weekend warrior looking to test your strength and endurance, or a fitness newbie looking for a goal to work toward, the sprint distance triathlon is the perfect starting point in your triathlon journey.
The sprint is a great way to break into the triathlon world. It’s challenging, but doesn’t require huge lifestyle modifications to train adequately. It involves a 750 m swim, 20 km cycle, and 5 km run. Depending on your fitness level, the weather on race day, and course conditions, you can expect to complete these three legs in around 1.5 to 2 hours.
To complete a sprint distance triathlon, you should be comfortable training up to 75% of standard distance triathlon in each of the disciplines. A standard distance involves a 1.5 km swim, 40 km bike and 10 km run, so you should be able to do at least a 1.125 km swim, 30 km bike and 7.5 km run. If you can achieve this, you’ll certainly have the fitness to participate in an official sprint distance triathlon.
How fit do you have to be to participate in standard and mid-distance triathlons?
You can train for a standard or mid-distance triathlon by following a good club program (i.e. 2 swim sessions, 2 – 3 bike sessions, and 2 – 3 run sessions). A weekend ride of 2 – 3 hours is plenty enough to get you around a standard-distance ride and would just about get you around a 90 km route (mid-distance bike).
Training in a club environment, if possible, will also provide you with the necessary fitness to complete a standard or middle-distance triathlon event. Essentially, the swim’s distance is the same, but the bike and the runs are more than double. If you can ride for around 40 km in a standard distance triathlon (with some regular longer rides of around 3 hours), you will build your cycling legs to ride 90 km comfortably. It’s the same for the run – if you can do around an hour of intervals with the club on one night, you can probably do a longer steady run of 21.1 km.
How fit do you have to be to participate in an Ironman triathlon?
An Ironman triathlon is its own beast. Due to the longer distances –3.86 km swim, 180.25 km bicycle ride, and a marathon 42.20 km run – it requires a dedicated training plan. In training, time is one of the biggest obstacles. Do you have enough time to regularly do 4 to 7-hour bike rides? Swimming takes longer, but if you have regular 1-hour swimming sessions through the week, that should be enough (though you should put in a couple of longer swims in the lead-up to the event). As for the run, you can approach it in various ways. For instance, if you’re planning to just reach the finish line, you can just concentrate on being able to ride effectively then schedule an effective run-walk routine. If you’re able to do these, you should be fit enough to do an Ironman.
How to Test Your Triathlon Fitness
Fitness tests are an excellent way to track your triathlon training progress. When and how often to assess your fitness depend on your training regimen and competition schedule. An assessment 8 to 12 weeks before your main race will help you make any final adjustments to your training regiment, or simply provide a fitness benchmark for you during racing season. However, a further test when you are at your racing peak can also be interesting to see what your values are when you are at your best.
There are different ways to test your triathlon fitness. Below, we list some ways that you can test your fitness in the three triathlon disciplines: swimming, cycling, and running.
To assess your swimming triathlon fitness, here are some tests you can try.
- 100-meter time trial. After a thorough warm-up, perform 3 x 100-meter intervals as fast as possible, but with an emphasis on consistency from one hard effort to the next. Recover for around 20 seconds between intervals. Your 100-meter training pace is the average of the 3 hard efforts. For instance, 3 efforts of 1:30, 1:32 and 1:34 would result in a training pace of 1:32 – this is a great indicator for anaerobic capacity.
- 1,000-meter/yard time trial. After a thorough warm-up, swim as hard as possible for 1,000 meters and do you best to pace it evenly. Use the time that it takes to complete the test to determine a swim pace per 100 meters. For instance, if you swim 1 km in 18:30, your pace per 100 meters is 1:51 – you can utilize this data to create your workouts.
To assess your cycling triathlon fitness, here’s a test you can try.
- 20-minute time trial. Make sure that you are well-rested before you perform this test. Then, after a thorough warm up, the goal is to ride at your best possible effort for around 20 minutes. You should be able to walk away from this test feeling like there’s no way that you could have rode any harder. Your average power for this ride is somewhat higher than your functional threshold power (FTP; 0.95 x your average power for the 20-minute test = FTP). For instance, if your observed average power is around 250 watts, your estimated FTP is 228 watts. This number signifies the maximum power an athlete can sustain for a 45-minute to 1-hour time trial effort. You can use this number and compare it to future tests.
To assess your running triathlon fitness, here are some tests you can try.
- 1 mile. Run 1,600 m at a controlled, hard effort that you can maintain with good form. Make sure to keep each lap consistent and don’t go out too hard! The mile is still a good enough fitness indicator, even for Ironman. Take your 1-mile test pace and add 30 seconds to get your predicted 5K pace per mile, then add 2 – 3 minutes to determine your easy pace or long run.
- 20-minute time trial. This is identical to the cycling test mentioned above, except you don’t have to ride a bike. After a thorough warm up, run as hard and as far as possible for 20 minutes. This is a somewhat brutal, but precise method to establish your threshold pace. However, be careful to avoid starting at a pace that is too fast to sustain, thus causing you to slow down involuntarily near the end. Your threshold pace is 95% of your average pace for that 20 minutes. Your average heart rate for the last 20 minutes of the time trial will be a close estimate of your lactate threshold heart rate.
The Bottom Line
These days, people of all fitness levels are participating in triathlon events. You don’t necessarily have to be fit at the start of your training, as you’ll end up getting fit along the way. With proper exercise and training, you should be able to participate in triathlon events!
If you’re new to the triathlon world, you might want to try out shorter distances first. With some more experience and training, you can try out for an Ironman eventually. Good luck!
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