Since 2011, The CrossFit Games has always included swimming in its battery of events.

However, some might say that swimming has no place in the test for the “fittest on earth.”

According to CrossFit, being more fit is defined as having “Increased work capacity across broad time [domains] and modal domains.”

Within that definition, a participant is being tested in terms of his or her power output, or “work capacity.”

or “work capacity.” CrossFit defers to physics for their definition of work capacity, where Work equals Force times Distance. Putting that over Time , gives us Power, or P=Fd/t.

equals times Putting that over , gives us Power, or P=Fd/t. So, if you are moving a large load, over a long distance, and doing it in a short amount of time, you are producing a lot of power. What’s more, you’re a candidate for the title of “fittest on earth!”

Now, consider swimming. An Olympic sport. Every year I’ve competed at the Games, we’ve been in the ocean or a pool. In terms of human history, swimming is probably one of the “classical” sports, right behind running and lifting heavy rocks. However, does it have a place in the Games?

According to the points above, I’d conclude swimming does not. By CrossFit’s own definitions, swimming is not very functional. What is a functional movement? According to CrossFit, a functional movement is something that moves a large load, a long distance, and quickly.

Let’s look at these pieces individually.

(F) A large load/Force: When you swim, you float. Your mass stays the same (or increases if you swallow water like I do) but “because of science” you essentially weigh less. The load you are moving has been effectively decreased.

(d) A long distance: Some people can swim relatively far, but no able-bodied person can swim farther than they could walk, jog, kayak, cycle… of all the human-powered travel options, swimming is arguably the most limited. Is this “relative” lack of functionality enough to exclude a movement? Some evidence says yes, as I’ll discuss in a moment.

(t) quickly: Have you ever seen a swim coach walk beside the pool as an athlete swims a length? Notice how one of them is expending large amounts of energy trying to go as fast as they can, and the other one is carrying a stopwatch and a clipboard over the same distance? The absolute speed per unit of energy is relatively low, compared to other skills.

In this regard, swimming is strange sport. It’s like, “let’s see which of us is the fastest, but let’s use the slowest form of movement to find out.” On top of that, someone came along and said, “hey, I’ve developed this new stroke – it’s a bit slower than the current one, but if we all agree to use the same technique we can see who’s the fastest at going slightly slower, within the already slow form of movement!”

Let’s talk about swimming relative to other movements. We will need to use the terms “within” and “between.” For the purpose of testing, is it ok to see a discrepancy “between” the power outputs of different movements, if we can still see increased work capacity “within” a movement?

Some movements are not included in the CrossFit Games. Presumably, this is because they are not as “functional” as other movements. For example: biceps curls; lateral and twisting movements; archery.

Let’s discuss archery. It is human powered, it requires physical skill (coordination and accuracy, with perhaps a dash of strength), and it is measurable. “Within” the sport, one can demonstrate increased Work capacity: you could fire more arrows into the target in a given time, or you could fire arrows over a longer distance. However, “between” sports, the work that is being done pales in comparison to many other options.

So, there’s a strong argument that swimming should not be included in the CrossFit Games, based on the following logic: The CrossFit Games wants to test fitness; they believe fitness is best assessed through functional movement; swimming is not a very functional movement.

However… the CrossFit Games still includes this and other movements that are not very functional! For example: the L-sit in 2011. An L-sit is a static hold, with essentially no distance being travelled, and therefore no mechanical Work being performed, thus producing no Power! Also, consider the legless rope climb: a conscious decision to lower the power output of athletes for a given task (moving their mass up a distance). Using the legs will always help you go faster.

So, it is clear that other considerations are being taken into account while creating The CrossFit Games.

The simplest rebuttal to the “logical argument,” outlined above, is the “intuitive argument,” which might proceed as follows:

We are trying to find the fittest person on earth. If someone cannot swim well, it just doesn’t feel right to call them the fittest human on the planet.

That about sums it up, and for me, that’s enough to warrant inclusion in the Games.