hot

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this to
a time at a normal temp? (i.e. at 60 degrees)

Yes; run one at 60 degreees. This may sound flippant, but
frankly anything else would be pure speculation -- far, far
too many individual/personal variables.

[email hidden] wrote in
:"]news:[email hidden]:

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this to
a time at a normal temp? (i.e. at 60 degrees)

There was some discussion on this on the "Cost of Running"
thread. From Bob Glover's book his rule of thumb is 1 second
per mile per degree (above 60).

22:47 - (3.1 * 30) = 21:14

However, as TopCounsel said, there are way too many
individual variables

Phil M.

--
"I gotta go. You're killin' me."

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this to
a time at a normal temp? (i.e. at 60 degrees)

It's pretty hard to tell. You could look at how your peers
did compared to previous attempts at the same course.

One rule of thumb is 1 second per mile per degree above 60,
but I'm not sure how applicable this is to such a short race
(though it does hold pretty well for marathon/half
marathon).

I'd forget about trying to run for time in the summer. You
simply won't run very fast over distances. I like to either
focus on competitive goals -- trying to improve my place, or
focus on distances where it doesn't matter so much (e.g. 1
mile) or just focus on training and try to peak in the fall
when you'll be able to run faster times.

Cheers,
--
Donovan Rebbechi pegasus.rutgers.edu~elflordOpen ↗

Stop being a punk.

[email hidden] wrote in message
news:<[email hidden]>...

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this to
a time at a normal temp? (i.e. at 60 degrees)

Phil:

I dunno, I just say it was hot and it slowed me down. Ask
the regular racers what % it slowed them down. I treat a hot
race as I would a hilly course, with an asterisk.

My PR for a marathon in 94 degree heat is 2:53, got a 2:42
at 78 degrees, and 2:37 at 45 degrees. (temps are at the
finish -- all started cooler)

-- Dan . "Phil M." <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

[email hidden] wrote in
:"]news:[email hidden]:

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this
to a time at a normal temp? (i.e. at 60 degrees)

There was some discussion on this on the "Cost of Running"
thread. From

Bob

Quoted message said:

Glover's book his rule of thumb is 1 second per mile per
degree (above

60).

Quoted message said:

22:47 - (3.1 * 30) = 21:14

However, as TopCounsel said, there are way too many
individual variables

Phil M.

--
"I gotta go. You're killin' me."

Phil M. said:

[email hidden] wrote in
:"]news:[email hidden]:

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this
to a time at a normal temp? (i.e. at 60 degrees)

There was some discussion on this on the "Cost of Running"
thread. From Bob Glover's book his rule of thumb is 1
second per mile per degree (above 60).

22:47 - (3.1 * 30) = 21:14

Just to complicate matters, long races are more affected
than short races. Not sure if it makes that much
difference for a 5k.

Cheers,
--
Donovan Rebbechi pegasus.rutgers.edu~elflordOpen ↗

TopCounsel said:

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this to
a time at a normal temp? (i.e. at 60 degrees)

Yes; run one at 60 degreees. This may sound flippant, but
frankly anything else would be pure speculation -- far,
far too many individual/personal variables.

And why would one want to consider 60 as a base? Why not
something like 40F? I'm just starting to get heat acclimated
to 60 - and that's cuz I waited and ran later in the day in
the shade (rather than blistering sun at 65) 😉

Point being that one has to take the degree of heat
acclimation into account plus many other variables.

I agree that running one at 60 is the best way.

Dot

--
"Success is different things to different people" -Bernd
Heinrich in Racing the Antelope

Dan Stumpus said:

Phil:

I dunno, I just say it was hot and it slowed me down. Ask
the regular racers what % it slowed them down. I treat a
hot race as I would a hilly course, with an asterisk.

My PR for a marathon in 94 degree heat is 2:53, got a 2:42
at 78 degrees, and 2:37 at 45 degrees. (temps are at the
finish -- all started cooler)

Ooohhhh ... data!

2:37 + (94-60) * 26.2 = 2:37 + 891 = 2:51:51
3:37 + (78-60) * 26.2 = 2:37 + 472 = 2:44:52

I think it's difficult to do much more than mark it with
an asterisk, but the rule of thumb can help adjust pace
in advance instead of "discovering" the heat at the
halfway mark and realising the finish is still just over
13 miles away.

Cheers,
--
Donovan Rebbechi pegasus.rutgers.edu~elflordOpen ↗

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this to
a time at a normal temp? (i.e. at 60 degrees)

There was no mention of humidity. I think this is a far
greater impact on race performance than temperature alone.

Just my two cents worth.

Lennard

I think you guys are definitely right about humidity being
important. Could someone give me a quick idea of how
humidity is measured though? I've got this Weatherbug
program that says the humidity now is 65% - what does that
mean? Is that high

Lennard Donekrs said:

There was no mention of humidity. I think this is a far
greater impact on race performance than temperature alone.

For me, I think the sun makes even more of a diff than
either heat or humidity. I've run in 40 degree weather when
the sun made me feel like it was 70. Now I mostly run at
night, in the woods, with a light. Sure and I am crazy!

Mike Maxwell

Lennard Donekrs wrote in message ...

Quoted message said:

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this
to a time at a normal temp? (i.e. at 60 degrees)

There was no mention of humidity. I think this is a far
greater impact on race performance than temperature alone.

humidity kills me more than heat alone. Even when its 65-70
the body can't properly cool off if its humid too humid. I
love to run when its low 60s with low humidity, though
faster times come when its about 50. I hate humidity
whatever the temperature really. For cycling 75-80 is
perfect. Last summer on a really humid day in the mid 80's I
lost 8 pounds in a 2 hour training run, even with drinking
40oz water on route.

- Tony

Quoted message said:

Just my two cents worth.

Lennard

Dot said:

And why would one want to consider 60 as a base? Why
not something like 40F? I'm just starting to get heat
acclimated to 60 - and that's cuz I waited and ran
later in the day in the shade (rather than blistering
sun at 65) 😉

It's nice to hear someone that agrees with me that 40 to 45
is the ideal temp! Most people think I'm crazy. (Of course,
they could be right...)

Mike McSwell

Donovan Rebbechi <[email hidden]> wrote in
:"]news:[email hidden]:

Quoted message said:

Phil M. said:

[email hidden] wrote in
:"]news:[email hidden]:

Quoted message said:

I ran a 5k in 90 degree heat and got a 22:47, which is a
bit disappointing. Does anyone know how to convert this
to a time at a normal temp? (i.e. at 60 degrees)

There was some discussion on this on the "Cost of
Running" thread. From Bob Glover's book his rule of thumb
is 1 second per mile per degree (above 60).

22:47 - (3.1 * 30) = 21:14

Just to complicate matters, long races are more affected
than short races. Not sure if it makes that much
difference for a 5k.

Also, I think weight has something to do with this. I know
that when I was 25 pounds heavier and running the same long
runs, the heat/humidity played a big factor in how I felt
and how fast I was able to run. Now, it still impacts my
performance, but not to the same degree. Maybe we should
rework the formula with the weight variable thrown in.

Phil M.

--
"I gotta go. You're killin' me."

Phil M. said:

Donovan Rebbechi <[email hidden]> wrote in
:"]news:[email hidden]:

Quoted message said:

Phil M. said:

[email hidden] wrote in
:"]news:[email hidden]:

> I ran a 5k in 90 degree heat and got a 22:47, which is
> a bit disappointing. Does anyone know how to convert
> this to a time at a normal temp? (i.e. at 60 degrees)
>

There was some discussion on this on the "Cost of
Running" thread. From Bob Glover's book his rule of
thumb is 1 second per mile per degree (above 60).

22:47 - (3.1 * 30) = 21:14

Just to complicate matters, long races are more affected
than short races. Not sure if it makes that much
difference for a 5k.

Also, I think weight has something to do with this. I know
that when I was 25 pounds heavier and running the same
long runs, the heat/humidity played a big factor in how I
felt and how fast I was able to run. Now, it

Yes. That's why the elites weren't extraordinarily slow in
NY last year -- they have fairly low BMI.

Cheers,
--
Donovan Rebbechi pegasus.rutgers.edu~elflordOpen ↗

Mike Maxwell said:

It's nice to hear someone that agrees with me that 40 to
45 is the ideal temp! Most people think I'm crazy. (Of
course, they could be right...)

Actually, I was beginning to feel the effects of heat at
45F. For some reason, I adapted quite well to our cold this
winter and was just having a hey day when it warmed up to
20-40F (reduced risk of frostbite, camelback less likely to
freeze, carry less extra gear, etc). Above that, the heat
was having a negative impact.

Dot

--
"Success is different things to different people" -Bernd
Heinrich in Racing the Antelope

[email hidden] wrote in news:56504bd4df99d9ba2fce721693d3fb46
@news.scbiz.com:

Quoted message said:

I think you guys are definitely right about humidity being
important. Could someone give me a quick idea of how
humidity is measured though? I've got this Weatherbug
program that says the humidity now is 65% - what does that
mean? Is that high

Relative humidity (usually meant when the term humidity
alone is used) is the ratio of the actual water-vapor
content of the air to its total capacity at the given
temperature.

High humidity inhibits the body's ability to cool itself
through sweating. Your skin should be moist, not dripping
off of you. High temperatures combined with a high humidity
(heat index) can make for dreadful running conditions. The
heat index is a very important gauge for the comfort level
of your run. The exercising human body is much better
prepared to deal with the cold than the heat and humidity.
Take a look at zunis.orgsee how they run.htmOpen ↗ for
all kinds of information on the effects of the heat index on
the exercising body.

Here's a heat index formula. It gives valid results above 70
degrees Fahrenheit.

Where t = temperature in degrees Fahrenheit, r =
%relative humidity

(-42.379+2.04901523*t+10.14333127*r-.22475541*t*r-
(6.83783e-3)*t^2-
(5.481717e-2)*r^2+(1.22874e-3)*t^2*r+(8.5282e-4)*t*r^2-
(1.99e-6)*t^2*r^2)

Or you can paste the following forumula on an Excel
spreadsheet. If you put the temperature in cell A1 and
the relative humidity in cell B1 and paste this formula
in cell C1:

=-42.379+2.04901523*(A1)+10.14333127*(B1)-
=0.22475541*(A1)*(B1)-0.00683783
*(A1*A1)-
0.05481717*(B1*B1)+0.00122874*(A1*A1)*B1+0.00085282*(A1)*(B1
*B1)-0.00000199*(A1*A1)*(B1*B1)

Phil M.

--
"I gotta go. You're killin' me."

The heat index was 102 great day to run(3.7 miles in 30
minytes) should be better the few days - from the great
state of texas!! plodzilla

Phil M. said:

[email hidden] wrote in
news:56504bd4df99d9ba2fce721693d3fb46 @news.scbiz.com:

Quoted message said:

I think you guys are definitely right about humidity
being important. Could someone give me a quick idea of
how humidity is measured though? I've got this
Weatherbug program that says the humidity now is 65% -
what does that mean? Is that high

Relative humidity (usually meant when the term humidity
alone is used) is the ratio of the actual water-vapor
content of the air to its total capacity at the given
temperature.

High humidity inhibits the body's ability to cool itself
through sweating. Your skin should be moist, not dripping
off of you. High temperatures combined with a high
humidity (heat index) can make for dreadful running
conditions. The heat index is a very important gauge for
the comfort level of your run. The exercising human body
is much better prepared to deal with the cold than the
heat and humidity. Take a look at
zunis.orgsee how they run.htmOpen ↗ for all kinds of
information on the effects of the heat index on the
exercising body.

Here's a heat index formula. It gives valid results above
70 degrees Fahrenheit.

Where t = temperature in degrees Fahrenheit, r = %relative
humidity

(-42.379+2.04901523*t+10.14333127*r-.22475541*t*r-
(6.83783e-3)*t^2-
(5.481717e-2)*r^2+(1.22874e-3)*t^2*r+(8.5282e-4)*t*r^2-
(1.99e-6)*t^2*r^2)

Or you can paste the following forumula on an Excel
spreadsheet. If you put the temperature in cell A1 and the
relative humidity in cell B1 and paste this formula in
cell C1:

=-42.379+2.04901523*(A1)+10.14333127*(B1)-
=0.22475541*(A1)*(B1)-0.00683783
*(A1*A1)-
0.05481717*(B1*B1)+0.00122874*(A1*A1)*B1+0.00085282*(A1)*-
(B1 *B1)-0.00000199*(A1*A1)*(B1*B1)

Phil M.

--
"I gotta go. You're killin' me."

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Quoted message said:

Quoted message said:

The heat index was 102 great day to run(3.7 miles in 30
minytes) should be better the few days - from the great
state of texas!!

I used to live in Texas in the 80s. It has to be one of
the worst cities for running in the US. If I ever move
back there, I'd have to get a treadmill.

Isn't Texas a state? ;-)

- --
John Mayson <[email hidden]> Austin, Texas, USA

-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (Linux)

iD8DBQFAxT3K2kz4fWh3iuERAgb2AKDAaPqI1/0CRKSrK5J9UGWV9nSSFQC-
fRvsv YD01BpkvaBNVSFBflD5bBXM= =O41o -----END PGP SIGNATURE-----