5k adjustments for heat and humidity

16:30-16:15

16:40-45, heat doesn't affect a 5k all that much, unless you're a 30mins hobbyjogger.

I’d say close to 16:30 than 16:30, but definitely a significant amount. The 90% humidity is no joke.

Closer to 16:30 than 16:15*

Ever ran a 5k in heat with dew point higher than 60? You would be saying otherwise.

Ever ran a 5k east of the Missouri River? It’s rarely under a 60 dew point in the late spring - early fall. For most of the country 60 dew point is low AF. It was a 77 dew point in many NE states today and 82 yesterday in the south.

Where I live it is rarely below 70 dew point. And I work night shift so I get to run when it's 90+ degrees and 70+ dew point. If you knew anything about running fast you would know any race above 800 meters start to be affected by temps above ~65 and/or dew points higher than 60.

And yes I am east of the Missouri. Try East of the Mississippi. You wouldn't last 5 miles at 7 min pace down here.

Uhhh, your point is completely unintelligible. You realize I was saying I have been running in dew points in the upper 70s, and then whine how I wouldn’t last because you rarely run at 70?

Yeah, the heat blows. My last workout also had a heat index of 101. It sucked, but you suck it up. You dreaming about a 59 degree dew point in the summer is just a fantasy, unless you live in CO or a few other specific locations in the US.

I did a 10k with a dew point of 78-79 (well, actually from where I live it's 90f temp with a 80f dew point right now), and got within 1min of my PB and I wasn't even peaking for that race.

I'm from Asia, so that probably skews things a bit but I just don't see how heat has that much of an impact on a race that lasts around 15 mins, unless you're running in death valley. It's a different story though if you're talking about a marathon, or even a half mary.

See how both Bekele and Cheptegei ran sub-13 with a 53 and 54 last lap respectively in heat and humidity. Are you telling me they're in 12:15-20 shape? lol

Nah dude, I think you need some better reading comprehension skills. The first guy said heat doesn't affect a 5k - it does - then you came in blabbering about east of the Missouri. Like no shxt 60 is low right now, but that is around the point pace is effected. I really don't get what tf you are trying to argue. When did I say I was dreaming about 59 degree dew point. You are making shxt up.

That's not how conversions work, idiot. And there is a thing called acclimation.

I just schooled you on the heat's effect on a 5k with examples, and now you've moved the goalpost to acclimation. lol

How do you know OP hasn't been acclimated?

You haven't schooled anyone, retard. Go school yourself with the countless studies done on the effect of dew point on performance. You ran a 45 minute 10k and got within 1 minute of your PB, great job. The WR holder ran a 12:58 (23 seconds slower than his PB) in hot and humid conditions. You have literally proven my point you absolute moron. And I'm assuming the OP is a normal American experiencing the same change in heat and humidity as the majority of other Americans, not a doped up East African.

12:58 without pacing light in a championship race. Using a bit of common sense, he clearly could have run well within 20 secs of his PB despite the heat and humidity. Any other questions?

Speak for yourself. Not all Americans are as ill-adapted to heat. Molly Seidal seized her bronze with a 2:27 (2 mins shy of her PB at the time). Or maybe she's just a "doped up American" following your logic.

As well as acclimatisation, I think there's a lot of individual variability. My training partner (very similar ability on a cool day) performs so much better than me in hot weather. I'm quite a bit bigger/muscular whereas they're a more typical little skinny runner build so I imagine that plays a part - heat dispersion/surface area to volume ratio etc.

You don’t believe you’ll ever have the opportunity to run a 5000m, in good conditions?

You haven't schooled anyone. In fact you barely have a novices grasp of the topic.

The answer is "it depends". It depends on the type of heat, more specifically the Suns altitude when running. A direct overhead sun (with similar dp) is quite different from the same data T+DP when the sun is at a low altitude (sunset).