darwin.

Enhanced Games: what the science says about sport with doping allowed (and why breaking a record proves nothing)

In May 2026, a doped swimmer in a banned supersuit lowered the 50m freestyle record and took US$1 million. The promise is "safe doping with a doctor by your side". The evidence tells another story.

Swimmers at the start seen from above, simultaneous dive with splashes
Photo: Unsplash
20.81 vs 20.88 Doped time in a banned supersuit versus the clean official 50m freestyle record. Incomparable numbers: one measures chemical-mechanical engineering, the other measures the body. World Aquatics; Enhanced Games, 2026
-4.9% Drop in the heart's ejection fraction during a steroid cycle, with a 28.3 g increase in left ventricle mass (reversible after ~8 months) Smit et al., Front. Reprod. Health, 2021
91% / 79% Share of athletes in the organization's study (n=36) who reported using testosterone and growth hormone in the previous 12 weeks; supervision observes this profile, it does not switch it off Enhanced Games (released data), 2026

What happened in Las Vegas

On May 24, 2026, the Resorts World in Las Vegas hosted the first edition of the Enhanced Games, an event that does the opposite of all Olympic sport: instead of banning performance enhancing substances, it allows them. Greek swimmer Kristian Gkolomeev swam the 50m freestyle in 20.81 seconds, below the official world record of 20.88 held by Australia's Cameron McEvoy, and pocketed US$250 thousand for the win plus a US$1 million bonus for surpassing the official mark. The event, founded by Aron D'Souza and funded by names such as the 1789 Capital fund, of which Donald Trump Jr. is a co-founder, and seed investor Peter Thiel, handed out about US$25 million in prizes.

The number is impressive. But it does not measure what it seems to measure, and that is where the honest reading comes in.

The two sides of the controversy

The organizers' argument has internal coherence. They say doping already exists in elite sport, only hidden and uncontrolled; that banning pushes the athlete toward clandestine self-medication; and that doing everything in the open, with testing and medical monitoring, would be safer than the current hypocrisy. They call it "science without taboo" and giving the athlete back autonomy over their own body.

On the other side, virtually the entire sporting establishment reacted. The International Olympic Committee called the event "a betrayal of everything we stand for", and the CEO of the US Anti-Doping Agency (USADA), Travis Tygart, called it "a dangerous clown show". The strongest objection, however, did not come from morality. It came from cardiology.

Why "medical supervision" does not neutralize the risk

Cardiologist Aaron Baggish, who for years directed the cardiovascular performance program at Massachusetts General Hospital and is now a professor at the University of Lausanne, declined the invitation to join the scientific commission of the Enhanced Games. His sentence sums up the problem better than any technical opinion: it is like a doctor saying he will make cigarettes safe by supervising you while you smoke.

Baggish's point is mechanistic, not ideological. Performance doses of anabolic steroids, growth hormone and EPO alter the physiology of healthy people in ways that supervision observes but does not switch off. There is no clinical button that cancels heart thickening or the increase in blood viscosity while the substance is acting.

The HAARLEM study, which followed real steroid users over a median cycle of 16 weeks, measured a 28.3 g increase in left ventricle mass and a 4.9% drop in ejection fraction during the cycle. The parameters only returned to normal about 8 months after stopping.Smit et al., Front. Reprod. Health, 2021

The good news from that same study is that the damage was reversible. The bad news is what it reveals about the risk window: during use, the heart works under altered load. Add EPO on top of that. Above a hematocrit of 50%, blood viscosity rises sharply and increases the risk of thrombosis, stroke and sudden death, the same reason cycling imposed a hematocrit limit in the 1990s after athlete deaths. Not coincidentally, the data the organization itself released from a study with 36 athletes indicates that 91% used testosterone, 79% used growth hormone and 62% used stimulants in the previous 12 weeks. No monitoring erases this exposure profile.

Why the record does not measure human physiology

Here is the part almost nobody mentions. Gkolomeev's 20.81 is not comparable to the official record of 20.88 for a simple reason: he did not swim under the same rules. Beyond the drugs, he wore a polyurethane suit of the type World Aquatics banned from 2010, after the "supersuit era" demolished dozens of records and blurred the line between athlete and equipment. McEvoy's official record, set in March 2026, was achieved in a textile brief, within the rules.

A record set with allowed drugs and banned equipment does not measure the human body. It measures a sum of chemical engineering and mechanical engineering layered on top of an already elite athlete. That is why World Aquatics does not recognize the mark, and why it serves as a reference for nothing.

It is worth remembering that Cesar Cielo's old mark of 20.91, from 2009, was also set in a supersuit. McEvoy's 20.88 is the only one of the three numbers that truly reflects what a body does within the rules. Comparing a doped 20.81 with a clean 20.88 is comparing different things and calling it progress.

And the most interesting lesson: the shortcut barely exists

For those who train for real, the most useful data point is counterintuitive. Even when the subject is performance gain, the evidence on drugs is less spectacular than the legend. One sign of that came from the event itself: sprinter Fred Kerley, a three-time world champion who declared himself not doped, won the 100m but in 9.97 seconds, a time that would have finished last in the 2024 Olympic final and well short of any record bonus.

A review published in the British Journal of Clinical Pharmacology concluded that there is no solid evidence that EPO improves the performance of elite cyclists in real racing, despite raising VO2max by 7 to 9.7% in the laboratory.Heuberger et al., Br. J. Clin. Pharmacol., 2012

The reason is revealing: endurance performance depends much more on lactate threshold, movement economy and submaximal capacity than on the VO2max ceiling, and these factors respond to training, not to a vial. In other words, even in the elite population, the pharmacological promise delivers less than it advertises, while the cardiovascular risk delivers exactly what it advertises.

For the amateur athlete, the math becomes even more unfavorable. The marginal gain a steroid or EPO could give comes nowhere near compensating the exposure to cardiac hypertrophy, thrombosis and hormonal deregulation. The basis of any progress remains the same unglamorous thing: well distributed volume, sleep, consistent eating and weeks stacked without injury. It is the opposite of a shortcut.

Darwin's reading

We neither demonize nor romanticize the topic. The Enhanced Games are an experiment honest in intention and dangerous in mechanism. Medical supervision can reduce acute deaths, but it does not turn steroids and EPO into something safe, just as the doctor by your side does not make cigarettes healthy. And the Vegas record, by combining drugs and a banned suit, is not a training benchmark for anyone.

The technique that makes you improve did not come from a doping laboratory. It came from decades of exercise physiology, and it is boring on purpose: consistency beats heroic intensity, and progress is what remains after many months without skipping steps. If you have questions about any substance, including legal ones, that conversation is with a doctor, not with a post. The athlete operates the machine. The chemical shortcut only looks like a shortcut.

Who proves it in practice

Kristian Gkolomeev Swimming, 50m freestyle, Enhanced Games 2026

He swam the 50m freestyle in 20.81s in Las Vegas, below the official record of 20.88, doped and in a banned polyurethane supersuit; he took US$250 thousand plus a US$1 million bonus. World Aquatics does not recognize the mark.

Cameron McEvoy Swimming, Australia

Holder of the OFFICIAL 50m freestyle world record at 20.88, set in a textile brief in March 2026, within the rules, surpassing Cesar Cielo's 20.91 from 2009. It is the only one of the numbers that measures human physiology, not equipment plus drugs.

Fred Kerley Athletics, sprinter, three-time world champion

He won the 100m at the Enhanced Games in 9.97s, declaring himself not doped, but was far from any record bonus: the time would have finished last in the 2024 Olympic final, illustrating that the clean human ceiling is well defined in the very event that set out to surpass it.

Answers about the topic

Frequently asked questions

Doping & high performance

Does Gkolomeev's 20.81 at the Enhanced Games count as a world record?

No. World Aquatics does not recognize the mark because it was set under two prohibited conditions: use of performance enhancing substances and a polyurethane supersuit banned since 2010. The official 50m freestyle world record remains Cameron McEvoy's 20.88, set in March 2026 in a textile brief and within the rules.

Does medical supervision make doping safe at the Enhanced Games?

Evidence says no. According to cardiologist Aaron Baggish, performance doses of steroids, growth hormone and EPO alter physiology in ways the doctor observes but does not switch off. The HAARLEM study measured a 4.9% drop in the heart's ejection fraction during a steroid cycle. Supervision can reduce acute deaths, but it does not eliminate the cardiovascular damage while the substance is acting.

Does EPO really improve the performance of elite athletes?

Less than people imagine. A review in the British Journal of Clinical Pharmacology (2012) found no solid evidence that EPO improves the performance of elite cyclists in real racing, despite raising VO2max by 7 to 9.7% in the laboratory. Endurance performance depends more on lactate threshold and movement economy, which respond to training, not to the drug.

Who funded the 2026 Enhanced Games?

The event was founded by Aron D'Souza and funded by investors such as Peter Thiel (seed investor) and the 1789 Capital fund, of which Donald Trump Jr. is a co-founder. Total prize money was around US$25 million, with US$250 thousand per win and a US$1 million bonus for breaking an official world record.

Why did clean athletes like Fred Kerley stay far from the records?

Because the human ceiling without doping is already known. Fred Kerley, a three-time world champion who declared himself not doped, won the 100m in 9.97 seconds, a time that would have finished last in the 2024 Olympic final and far from any record bonus. This reinforces that the basis of progress is consistent training, not a chemical shortcut.

References

  1. Smit DL, Voogel AJ, den Heijer M, de Ronde W. Anabolic Androgenic Steroids Induce Reversible Left Ventricular Hypertrophy and Cardiac Dysfunction. Echocardiography Results of the HAARLEM Study. Frontiers in Reproductive Health, 2021.
  2. Heuberger JAAC et al. Erythropoietin doping in cycling: lack of evidence for efficacy and a negative risk-benefit. British Journal of Clinical Pharmacology, 2012.
  3. Enhanced Games results: Swimmer Kristian Gkolomeev breaks world record in final event for $1M bonus; Fred Kerley falls short. Yahoo Sports, May 2026.
  4. The Enhanced Games are Sunday. Here's what to know about the controversial event (Baggish, the cigarette quote). NPR, May 24, 2026.
  5. A new benchmark: McEvoy breaks iconic 50m freestyle World Record. World Aquatics, 2026.
  6. Nine In Ten Enhanced Games Athletes Used Testosterone, Company's Clinical Trial Data Shows. Marathon Handbook, 2026.

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