General Discussion Triathlon Talk » Pool Yards to Miles - How does it match up? Rss Feed  
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2008-06-17 10:29 AM

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Subject: Pool Yards to Miles - How does it match up?
The pool I swim in is 25 yards. They have a big chart on the wall showing the length equivalences of .25, .5 and 1 mile. But I noticed something strange today. It says 72 lengths is a mile, or 1760 yards. But if you multiply 72 by 25, it's 1800 yards. All of the mile markers are a little under, the .5 mile is 36 lengths (which would be 900 yards), but noted as 880. What is the reason for this?


2008-06-17 10:32 AM
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Melon Presser
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Subject: RE: Pool Yards to Miles - How does it match up?
Swimmers are weird and generally require everything in multiples of 50, if not 100. So the posted distances are approximations rounded to the closest 50.
2008-06-17 10:41 AM
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Subject: RE: Pool Yards to Miles - How does it match up?
Well if you swam exactly 1760 yards, that would be 70.4 lengths, which could get confusing. If you swam 70 lengths you would be going under a mile, and if you swam 71 lengths, you would end up on the opposite side of the pool that you started on. That makes it harder on coaches who are allocating mile repeats
2008-06-17 10:45 AM
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Subject: RE: Pool Yards to Miles - How does it match up?
Got it, that makes sense. So a mile is 1760, but in order to swim close to the equivalent, you have to do the 72 lengths. Good to know!
2008-06-17 10:53 AM
in reply to: #1471473

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Expert
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Subject: RE: Pool Yards to Miles - How does it match up?
Yes, although the swimming race referred to as "the mile" is actually a 1650, or 66 lengths. I have no idea why that's the case.....
2008-06-17 10:57 AM
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Sensei
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Subject: RE: Pool Yards to Miles - How does it match up?

MLJ - 2008-06-17 8:53 AM Yes, although the swimming race referred to as "the mile" is actually a 1650, or 66 lengths. I have no idea why that's the case.....

I'm 99% sure it's because 1.5k is the typical international length "mile" which is 1640 yards - close to the 1650......

Just like when I was in high school track.  The 400 meter track was 440 yards.  So we called the races the 4-40, 8-80, etc.....

When training, I always consider 1650 (33 laps) is a mile.



Edited by Aikidoman 2008-06-17 10:58 AM


2008-06-17 10:57 AM
in reply to: #1471550

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Subject: RE: Pool Yards to Miles - How does it match up?
MLJ - 2008-06-17 10:53 AM

Yes, although the swimming race referred to as "the mile" is actually a 1650, or 66 lengths. I have no idea why that's the case.....
I've never understood that either... Maybe it's because a mile is 1609 meters, and somehow somebody decided to use the same number for a short course pool to round to without doing a proper conversion?
2008-06-17 10:59 AM
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Subject: RE: Pool Yards to Miles - How does it match up?
MLJ - 2008-06-17 8:53 AM

Yes, although the swimming race referred to as "the mile" is actually a 1650, or 66 lengths. I have no idea why that's the case.....


1650 meters maybe? A mile is about 1609 meters so the 1650 makes you go the entire distance instead of stopping short.
2008-06-17 11:02 AM
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Sensei
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Subject: RE: Pool Yards to Miles - How does it match up?

cythim - 2008-06-17 8:59 AM
MLJ - 2008-06-17 8:53 AM Yes, although the swimming race referred to as "the mile" is actually a 1650, or 66 lengths. I have no idea why that's the case.....
1650 meters maybe? A mile is about 1609 meters so the 1650 makes you go the entire distance instead of stopping short.

Again, 1500 meters (1.5k) is the standard international race length (1640 yards).  Americans call it a "mile" since it's close to that, but not exactly....(1760 yards)

2008-06-17 11:06 AM
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Subject: RE: Pool Yards to Miles - How does it match up?
1650 yards is also a convenient number of yards to do a "broken mile" workout with (11 lengths, 10 lengths, 9, 8, 7...etc). Doing the 4 lengths rep twice would just be weird
2008-06-17 11:06 AM
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Bob
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Subject: RE: Pool Yards to Miles - How does it match up?

cythim - 2008-06-17 11:59 AM
MLJ - 2008-06-17 8:53 AM Yes, although the swimming race referred to as "the mile" is actually a 1650, or 66 lengths. I have no idea why that's the case.....
1650 meters maybe? A mile is about 1609 meters so the 1650 makes you go the entire distance instead of stopping short.

It's 1650 yds for the "swimmers mile" which is close to the 1500m in metric or international distance. No idea why.



2008-06-17 11:16 AM
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Subject: RE: Pool Yards to Miles - How does it match up?
Ah the metric mile, makes sense now. Maybe someday we Americans will give up and go metric with the rest of the world.
2008-06-17 11:18 AM
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Subject: RE: Pool Yards to Miles - How does it match up?
So how many yards is the 2.4 miles IM swim?
2008-06-17 11:22 AM
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Subject: RE: Pool Yards to Miles - How does it match up?

CKinsey - 2008-06-17 9:18 AM So how many yards is the 2.4 miles IM swim?

2.4*5280=12,672'=4224 yards.

The IM is an American race, so all the distances are in English lengths.  Olyimpic or International length races are typically metric lengths.  1.5k swim, 40k bike, 10k run. (1650 yards/24.8 miles/6.2miles).

2008-06-17 11:23 AM
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Master
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Subject: RE: Pool Yards to Miles - How does it match up?
CKinsey - 2008-06-17 12:18 PM

So how many yards is the 2.4 miles IM swim?


I use this to convert my meter swims when I'm curious about milege: http://www.convert-me.com/en/convert/length

2.4 mile swim =

4224 Yards

or

3862 Meters

2008-06-17 12:14 PM
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Expert
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Subject: RE: Pool Yards to Miles - How does it match up?
I've always woundered: Why is the swimmer's mile shorter? Why make it a 1500 m or 1650 yd, when they could just add 100 yards/meters making it closer to an actual mile?


2008-06-17 12:19 PM
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Subject: RE: Pool Yards to Miles - How does it match up?

amyro1234 - 2008-06-17 10:14 AM I've always woundered: Why is the swimmer's mile shorter? Why make it a 1500 m or 1650 yd, when they could just add 100 yards/meters making it closer to an actual mile?

Because the rest of the world swims a 1500 meter race, which is 1650 yards.

You can swim the extra 100 if you like though to make it a semi official mile....

2008-06-17 12:24 PM
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Giver
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Subject: RE: Pool Yards to Miles - How does it match up?

This discussion reminds me of this...

Chris (Luke Skywalker): Is it a fast ship?
Peter (Han Solo): Are you kidding? It's the ship that made the Kessel run in less than 12 parsecs.
Chris (Luke Skywalker): Um, isn't a parsec a unit of distance, not time?

2008-06-17 3:28 PM
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Expert
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Subject: RE: Pool Yards to Miles - How does it match up?
I think the reason they picked 1650 might be so you can do sets of:

11 laps, then 10 laps, then 9 laps, etc. and get to "a mile" by the time you're done.
2008-06-17 7:39 PM
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Master
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Subject: RE: Pool Yards to Miles - How does it match up?
Since you are in the water you should swim a nautical mile anyway which is about 2000 yards or 80 lengths.
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General Discussion Triathlon Talk » Pool Yards to Miles - How does it match up? Rss Feed