The Portland Marathon and the Cardiac Screening Gap in Mass-Participation Running

Mile 18. His wife stood at the roadside. He stopped for a few seconds and bent down to kiss her. Mile 20. Trey Lara, 25 years old, collapsed at kilometre 32 of the Portland Marathon on October 4, and did not survive. He was a young pastor who entered the race to "relax and relieve stress", not to chase a time. His family says he was completely healthy, with no underlying condition.

I logged this case in my tracking sheet the next morning. I did not react with tears; I leave that to his family, to those who have the right to grieve. I reacted with a question: in this 25-year-old man's medical file, which piece of paper was missing?

There is no performance data here to analyse. No split, no pace, no figure to set beside Kelvin Kiptum's world record of 2:00:35 set in 2026. Mile 20 is not a performance marker, it is a location. And a death at mile 20 of a mass-participation race does not measure whether someone ran fast or slow. It measures something else, something systemic: in mass-participation marathon running, the cardiac safety net has holes large enough for a young, healthy person to slip through.

That is why I am writing. Not to retell a tragedy — his family has suffered enough, and I refuse to use words like "tragedy" or "hope" to amplify someone else's pain. I am writing because the Portland Marathon is a large mass-participation race, and Vietnam's mass-participation marathon scene is expanding faster than its medical infrastructure can keep up.

The Portland Marathon is a large American road race, traditionally held in autumn. The organiser named is Motiv Sports, with executive director Crystian Kumnick. After the incident, the organisers confirmed a medical emergency occurred but declined to give athlete-specific detail — the standard privacy and liability posture of any race organiser. A GoFundMe campaign for the family raised about US$60,000, a figure that shows how tightly a community can gather around a pastor.

In Vietnam the picture is similar but younger. Ten years ago, a mass-participation marathon with a few thousand runners was a big event. Today, race systems such as VnExpress Marathon, Techcombank Marathon and night races in many cities draw tens of thousands each season, stretching from Hanoi and Da Nang to Can Tho. Most participants are not professional athletes. They are office workers, teachers and engineers running 42.195 km as a personal goal, in exactly the "relax and relieve stress" spirit of Trey Lara.

What mass running in both countries has not yet caught up with is the submerged part of the iceberg: cardiovascular screening before entering the course. A person buys a bib, signs a liability waiver, and stands at the start line. No one requires them to have an ECG or an echocardiogram. That is the gap the death of Trey Lara throws light on.

The heart of a 25-year-old who dies during a marathon rarely fails for the same reason as the heart of a 60-year-old.

In middle-aged people, the leading cause of sudden death during exertion is usually coronary artery disease — plaque blocking blood flow to the heart muscle, causing a myocardial infarction. In young people the list of causes reverses. The leading causes are structural or electrical abnormalities the person usually does not know they have: hypertrophic cardiomyopathy, congenital coronary anomalies, or ion-channel disorders such as long-QT syndrome, CPVT or Brugada. Another group is myocarditis, often after a viral infection.

What these causes share is silence. Hypertrophic cardiomyopathy and ion-channel disorders can produce no symptom at all until the event itself. A routine check-up will not detect them. A person can be "completely healthy" in the sense of not feeling ill, and still carry an electrical time bomb in their chest.

This is where the original article does one important editorial thing: it cites the American Heart Association's definition distinguishing cardiac arrest from myocardial infarction. That distinction is not academic. Cardiac arrest is an electrical event — the heart's conduction system suddenly goes into disarray and the heart stops pumping blood. Myocardial infarction is a vascular event — blood flow is blocked. The two can be linked, but the mechanisms differ, and so do the ways to prevent them. Describing Trey Lara's case as "sudden cardiac arrest" shifts the analytical centre toward rhythm disorders and structural abnormalities — exactly the leading causes in young people.

His family says he was "completely healthy, with no underlying disease". I do not doubt them. But I have to state clearly what the original article itself notes: that is family testimony, not a medical conclusion. Many congenital heart conditions and electrical disorders cannot be found by the naked eye or by subjective feeling. They surface only through an ECG, an echocardiogram, or through the first event itself — and the first event is sometimes the last.

There is another variable the article does not raise but which belongs in the picture: the timing of the collapse. For a marathon runner, the final third of the course is the segment where cardiac and thermoregulatory strain peak cumulatively. That is why events are not spread evenly along a course but cluster in the closing stretch. Collapsing at kilometre 32, after covering almost the whole journey, fits this distribution. It says nothing about whether he ran fast or slow, but it confirms that his body was pushed to its limit at the very point where anyone's could be.

In the mass-marathon population there is another cause that is rarely mentioned but belongs on the list: exercise-associated hyponatremia. A runner drinks too much water during the race, dilutes the sodium in their blood, and can collapse from brain swelling. The mechanism is entirely different from heart disease, but the outward appearance — collapsing late on the course — is the same. Telling them apart requires a test; it cannot be guessed by eye.

One detail about his training record is also worth keeping: he trained for "many months" before the race. For a recreational runner, "many months" is the mark of a first-time or novice marathoner, a subgroup with relatively higher risk because of less familiarity with the load and less discipline in pacing. This does not say he trained wrongly. It says he belonged to the group the system needs to protect more, not less.

There is a contrast I always think about when comparing the two worlds. A professional marathoner has a team doctor, a laboratory, someone monitoring their ECG through the season. A recreational runner who buys a bib online has only themselves. Team doctors do not heal football; they heal the seasons ahead. By the same logic, cardiac screening does not heal one race, it heals the seasons ahead of a person — it is just that no one stands in that role for the recreational runner yet.

All three groups of causes lead to the same systemic conclusion: what can save a person who collapses at mile 20 is not their speed, but the distance from where they collapsed to the nearest defibrillator, and whether anyone knows how to do chest compressions properly.

An automated external defibrillator (AED) and cardiopulmonary resuscitation (CPR) are the two most important threads in the safety net. In out-of-hospital cardiac arrest, time is the decisive variable. With every minute that passes without a shock, the chance of survival falls sharply. How many AEDs a marathon has, where they are placed, who operates them, what the average response time is — these are questions any organiser should be able to answer before opening registration. In Trey Lara's case, the source says nothing about whether an AED was deployed in time. I do not speculate toward blame, nor toward excuse. I simply flag it as a data gap, and every gap is a place to improve.

There is an understandable reflex when reading news like this: call it a rare accident, an isolated case, impossible to foresee. That reflex is half right.

It is right in that sudden death in mass-participation marathon running is a rare event. International medical reviews estimate the rate at roughly 0.5 to 1 case per 100,000 participants. For an individual, that probability is close to zero. But when a single race draws tens of thousands, and the number of races in a year runs into the hundreds, then "rare" at the individual level becomes "certain to happen" at the system level. A small probability multiplied by a large enough number of attempts produces a number that is not small. This is the arithmetic the global mass-running industry still has not done seriously.

The half that is wrong lies in the words "impossible to foresee". Some cases truly cannot be foreseen through a routine check-up alone. But part of them can be foreseen with deeper cardiovascular screening. The problem is that screening every mass runner runs into a cost-and-ethics problem: the test costs more than the entry fee, and broad screening produces false positives, needlessly alarming many people. That is a real trade-off with no free solution. But "difficult" does not mean "ignore it".

Every press conference has two stories: one that is read aloud, and one you have to find yourself. In this case, the story read aloud is a young, healthy pastor who collapsed from a cardiac event. The story you have to find yourself is the structure of a race system that lets tens of thousands of people step onto a 42 km course with no minimum layer of cardiovascular screening, and that does not publicly disclose its emergency capacity.

I also refuse another reflex: pinning everything on the organiser's responsibility. The Portland Marathon organisers confirmed an emergency occurred but did not disclose detail — a posture that both protects the deceased's privacy and limits independent assessment. Both sides have a point. What is needed is not a conviction, but a standard question: what safety metrics should a large race publish so the community can trust it?

An injury case is a test: does the system believe in people or in data? For mass running, the answer of most systems so far has been to believe in people — to believe that runners know their own limits, know whether their heart has a problem. The case of Trey Lara shows that belief has its limits.

What I want to see in Vietnam's mass-running seasons ahead is not grand safety statements. I want a few concrete numbers: how many AEDs a big race has, the spacing of medical stations, the share of volunteers trained in CPR. I want a line on the entry form asking about family cardiovascular history, instead of just a liability waiver checkbox. And I want an attitude that faces an uncomfortable truth: a 25-year-old, healthy by every outward measure, can still collapse at mile 20 — not because they are weak, but because some things inside the body only appear once it is too late.

On June 7, 2026, when I published an internal note predicting Van Duc would dip in form because his muscle mass was 5% below pre-pandemic levels, someone called me cold. Two weeks later he left the pitch in the 60th minute. I have kept that method ever since. With cases like Trey Lara's, coldness is not a lack of humanity. It is the only way for a death to become a line of data that helps the living.