Math Question... (1)

I’m trying to simulate an olympic distance tri in my health club pool.

Olympic Distance swim is .93 miles
70 laps in the pool (yards) is 1 mile

70 laps x 25 yards = 1,750 yards (1 mile = 1,760 - so close enough p/m 10 yards)

Each lap represents .014 (70/1) miles. So I subtracted 5 laps (.071 miles) to come up with .93 miles.

Stupid question, but just wanted to see if I’m doing that right. .93 miles = 65 laps or 1625 yards.

or 93% of 70 = 65 laps…

I’m trying to simulate an olympic distance tri in my health club pool.

Olympic Distance swim is .93 miles
70 laps in the pool (yards) is 1 mile

70 laps x 25 yards = 1,750 yards (1 mile = 1,760 - so close enough p/m 10 yards)

Each lap represents .014 (70/1) miles. So I subtracted 5 laps (.071 miles) to come up with .93 miles.

Stupid question, but just wanted to see if I’m doing that right. .93 miles = 65 laps or 1625 yards.

It still astounds me that in world swimming every man and their dog are on the metric system and the US still uses yards.

I’m trying to simulate an olympic distance tri in my health club pool.

Olympic Distance swim is .93 miles
70 laps in the pool (yards) is 1 mile

70 laps x 25 yards = 1,750 yards (1 mile = 1,760 - so close enough p/m 10 yards)

Each lap represents .014 (70/1) miles. So I subtracted 5 laps (.071 miles) to come up with .93 miles.

Stupid question, but just wanted to see if I’m doing that right. .93 miles = 65 laps or 1625 yards.

25 yard pool. I use the term ‘lap’ to mean a round trip, down and back. So 50 yards.
But others use it like you do, so just being clear.

a meter is 10% longer than a yard. 1500 meters is the oly distance swim.
1650 yards is equal to 1500 meters.

1650/50 = 33 laps (or 66 laps in your terminology)

It’s actually 65.47 laps, so close enough.

You could just take .93 x 5280 then divide by 25 to get laps.

I like this answer. Very simple.

I’m trying to simulate an olympic distance tri in my health club pool.

Olympic Distance swim is .93 miles
70 laps in the pool (yards) is 1 mile

70 laps x 25 yards = 1,750 yards (1 mile = 1,760 - so close enough p/m 10 yards)

Each lap represents .014 (70/1) miles. So I subtracted 5 laps (.071 miles) to come up with .93 miles.

Stupid question, but just wanted to see if I’m doing that right. .93 miles = 65 laps or 1625 yards.

25 yard pool. I use the term ‘lap’ to mean a round trip, down and back. So 50 yards.
But others use it like you do, so just being clear.

a meter is 10% longer than a yard. 1500 meters is the oly distance swim.
1650 yards is equal to 1500 meters.

1650/50 = 33 laps (or 66 laps in your terminology)

I should have elaborated. It’s 65.4 ‘laps’ but it’s easier to just round it up to 66.
And as a conversion, the 66 laps works better IMO because you are doing an extra 6 ‘laps’ in a yard pool versus a meter pool and those extra turns at the wall gain you an advantage that is offset by the extra .6 lap at the end.

The same reason the US still uses the English system, it’s probably too expensive to convert. They can lengthen old 25 yd pools to 25m then swimmers can use the metric system. Of course that’s more costly than calculating yards.

In swimming, the equivalent of the 1500m is the 1650y. Times work out to be pretty close, I think 1650 is actually a little longer but you get an extra 6 flipturns to make up the difference.

http://www.metric-conversions.org/length/meters-to-yards.htm

The 1500 is actually 1640 yards… Your time should be a little quicker on a 1650 than a 1500, but not by much.

Why is ‘miles’ being used on this thread?

Weren’t we given the distance in yards? and then tried to determine the number of laps for those yards?

Why is ‘miles’ being used on this thread?

To introduce additional rounding errors???

I never bothered to count in anything over a 400. Just swim until you hear a bell, then do one more trip to the other end of the pool and back.

Wolframalpha! http://www.wolframalpha.com/input/?i=.93+miles+%2F+25+yards

“You could just take .93 x 5280 then divide by 25 to get laps.”

You would need to divide by 75 (there are 75 feet in a lap, not 25).
.

http://www.youtube.com/watch?feature=player_embedded&v=Qhm7-LEBznk#
.

Why is ‘miles’ being used on this thread?

Weren’t we given the distance in yards? and then tried to determine the number of laps for those yards?

And technically speaking, a lap brings you back to the starting point. 70 lengths is 1750 yards, 70 laps is 3500 yards.

I think the term LAP is really confusing; my wife (who is a swimmer) has no problem with the terminology.

I prefer the term “TAB” (there and back) – nice and simple.

Now where is that pink font button.

65 laps
.

I think the real question is…

Is one lap one length of the pool? or… is one lap the length of the pool and back?

I never bothered to count in anything over a 400. Just swim until you hear a bell, then do one more trip to the other end of the pool and back.

Wow, what pool do you swim at? I wish we had bell ringers at our pool when I train.

It still astounds me that in world swimming every man and their dog are on the metric system and the US still uses yards.

I know. It would be so easy to rebuild all the pools and make them scm.