Golf in the Heat: The Stop Rule Beats Finishing the Round

If a playing partner is confused, stumbling, not making sense, or has stopped sweating, call 911 from where you are. Do not drive them in. Do not wait until the next tee.

Four hours of walking or riding in full sun, mostly with nowhere to shelter, by a population that skews older than almost any other sport — and a culture in which stopping early is faintly embarrassing.

That combination is the whole of why this page exists. Nothing about the physiology is special. The behaviour is.

The two CDC sentences that matter most

On when to stop, and this is written in capitals in CDC’s own guidance for people exercising in heat:

“If you feel faint or weak, STOP all activity and get to a cool place.”

Not at the turn. Not after this hole. The reason it is written that way is that the judgement you would use to decide whether to push on is made by the organ heat affects first.

And on the earliest sign, which almost everybody dismisses:

“Muscle cramping may be an early sign of heat-related illness.”

An early sign. A cramping calf on the fourteenth is not a fitness problem to stretch out and play through. It is the first item on a list, and the list gets worse.

Watch each other, because CDC says to

“Monitor a teammate’s condition, and have someone do the same for you.”

A fourball is the best safety arrangement in amateur sport and nobody uses it that way. Three other people can see what you cannot: that you have gone quiet, that you have stopped sweating, that your answers have got shorter.

The one to act on is confusion. A playing partner who is not making sense, who repeats himself, who cannot remember the hole, or who is unsteady — that is not the heat making him tired. The dividing line between exhaustion and heat stroke is exactly there, and it is a 911 call.

The thing nobody on a course accounts for: distance from help

You are between five minutes and half an hour from the clubhouse, on a cart, and an ambulance has to find you on a course rather than at an address.

So the margin for “let us see how he does over the next few holes” is much thinner than the same decision would be at home. That is not a claim about any course’s staff or facilities — it is geometry. Call from where you are, and say which hole. The same logic runs through calling 911 on a trail: being found is half the problem.

What CDC recommends before you tee off

Play early or late — “Schedule workouts and practices earlier or later in the day when the temperature is cooler”, and “Limit outdoor activity, especially during the middle of the day when the sun is hottest if possible.” An 11am tee time in June is the decision, not the back nine.

Start slow — “Pace activity. Start activities slow and pick up the pace gradually.”

Drink before you are thirsty — “Drink more water than usual, and don’t wait until you’re thirsty to drink more.”

And know your own exception. If a doctor limits your fluids or has you on water pills, CDC’s instruction is to ask them how much you should drink in hot weather rather than to follow the general advice. That conversation belongs in March.

If you are over 65, the bar is lower and CDC says so

This matters here more than in most sports, because of who plays.

For an older adult, the CDC pairs muscle cramps, headaches, nausea or vomiting with “seek medical care immediately” — a lower threshold than for a healthy younger adult, and deliberately so. Three reasons stack: the body adjusts less well to temperature change, chronic conditions alter the response, and prescription medicines can affect temperature control and sweating. The full version is here.

So for an older player, cramps and a headache on a hot round are not the beginning of a debate.

Where to go

Call 911 for confusion, collapse, seizure, unresponsiveness, chest pain, or skin gone hot and dry after heavy sweating. Give the course name and the hole number.

Come to an emergency room for heat illness that is not settling once out of the sun, for vomiting that will not stop, for cramps in an older player, or for anybody who finished the round and is now unwell. CDC’s own line for people exercising is to seek medical care immediately if somebody has symptoms of heat-related illness.

Our emergency rooms are open every hour of every day and are walk-in, with CT, X-ray and a full laboratory in the building. Go to the nearest one, and if another emergency department is closer to the course, that one is the right answer.

If you are unsure, come in — this list is not exhaustive and you are not expected to assess heat illness on a fifth green.

Questions people actually ask

I get cramp every hot round. That is just me, surely? CDC calls muscle cramping a possible early sign of heat-related illness. “It always happens” is worth mentioning to whoever looks after you rather than treating as a personality trait.

We are two holes from the clubhouse. Should we just get him in? If he is confused, unsteady or not making sense — call 911 from where you are. If he is tired, hot and thinking clearly, getting him into shade and air conditioning is right, and keep watching him.

Does an electrolyte drink change anything? Fluids matter and no drink substitutes for stopping and getting cool. CDC’s instruction is more water and not waiting for thirst; it does not endorse a product, and neither does this page.

I am on blood pressure medication. Is golf in July a bad idea? That is a real question for your prescriber, asked once, before the season — and some medicines affect how the body handles heat, so it is worth asking specifically.

He finished the round, had a drink, and now he feels dreadful. Get him seen. Heat illness does not stop at the eighteenth, and the cooling-off period in the bar is where people decide they are fine and are not.

Is a cart safer than walking? Less exertion, yes, and the sun exposure and the heat are unchanged. A cart does not make the middle of a June day a good tee time.

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Faint or weak means stop all activity. Cramping may be the first sign. Watch each other, and call 911 from where you are. Both of our emergency rooms are open 24 hours a day, every day of the year — walk in, no appointment and no referral. Find your nearest emergency room →

Related reading: heat exhaustion or heat stroke · checking on someone over 65 in a heat wave

Sources

13. About Heat and Your Health — Centers for Disease Control and Prevention. https://www.cdc.gov/heat-health/about/index.html
24. Heat and Older Adults (Aged 65+) — Centers for Disease Control and Prevention. https://www.cdc.gov/heat-health/risk-factors/heat-and-older-adults-aged-65.html
39. Heat and Athletes — Centers for Disease Control and Prevention. https://www.cdc.gov/heat-health/risk-factors/heat-and-athletes.html

This article is general information, not a diagnosis, and it cannot account for your health or your medications. If you are unsure, come in — this list is not exhaustive and you are not expected to assess yourself in the heat that is affecting your judgement. If it might be an emergency, treat it as one and call 911.