OW vs. Marathon

Former Member over 18 years ago

My wife being a runner asked yesterday after I completed a 2.3ish mile swim what is the equivalent swimming-wise to a marathon. Because she had always assumed that a 2.4 mile swim would be like running a marathon since it's part of the Ironman Tri. I didn't really feel like completing that swim that I would compare it to a marathon. While I was pooped and sore, it was not like having my muscles ripped to shreds and hurting to move several days. Any thoughts? Also the other discussion we had was the fact that in a running or biking race, you really are running/biking that distance, but in a swim you are doing some n amount more than the straight distance. For swimming your fighting the waves and your own ability to swim straight that you do some amount more. I've thought "how great would it be if I could place a gps tracker around my ankle that I could plot my swim and see how much I really did."

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Former Member over 18 years ago

Hi! It seems to me that one mile swimming is about equivalent to 4 miles running. I looked at some olympic records, to check this. en.wikipedia.org/.../Olympic_record Swim 50 m men 21.91 Run 200 m men 19.32 Ratio SwimTime/RunTime 1.13 Swim 50 m women 24.13 Run 200 m women 21.34 Ratio SwimTime/RunTime 1.13 Swim 100 m men 47.84 Run 400 m men 43.18 Ratio SwimTime/RunTime 1.11 Swim 100 m women 53.52 Run 400 m women 47.60 Ratio SwimTime/RunTime 1.12 Swim 200 m men 1:44.71 Run 800 m men 1.41.11 Ratio SwimTime/RunTime 1.04 Swim 200 m women 1:57.65 Run 800 m women 1:53.28 Ratio SwimTime/RunTime 1.04 Unfortunately, they don't have the 1:4 distance ratio correspondence for races for the longer races - examples: 400 m free vs 1500 m running, 1500 m free vs 5000 m running . For each of the distances, the swim/run4X ratio is pretty much the same for men and women. So the decrease of the ratio as the distances goes longer looks like a trend to me, not just random chance. But does that trend keep going? I'm guessing it does if world class 10k swimming times are typically under 2 hours I //COULD\\ check to see if the ratio is the same for jr's and different age groups. Then maybe do extrapolation assumign that the pace for 1600m would not be different from the 1500 m pace. (TooMuchWork) :shakeshead: Looks to me the 1:4 ratio is a pretty good approximation, though. That would make a 10K swim roughly equivalent to a marathon (the same way a 24 mile race or a 29 mile race would be roughly equivalent to the marathon) Mick

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Former Member over 18 years ago

Hi! It seems to me that one mile swimming is about equivalent to 4 miles running. I looked at some olympic records, to check this. en.wikipedia.org/.../Olympic_record Swim 50 m men 21.91 Run 200 m men 19.32 Ratio SwimTime/RunTime 1.13 Swim 50 m women 24.13 Run 200 m women 21.34 Ratio SwimTime/RunTime 1.13 Swim 100 m men 47.84 Run 400 m men 43.18 Ratio SwimTime/RunTime 1.11 Swim 100 m women 53.52 Run 400 m women 47.60 Ratio SwimTime/RunTime 1.12 Swim 200 m men 1:44.71 Run 800 m men 1.41.11 Ratio SwimTime/RunTime 1.04 Swim 200 m women 1:57.65 Run 800 m women 1:53.28 Ratio SwimTime/RunTime 1.04 Unfortunately, they don't have the 1:4 distance ratio correspondence for races for the longer races - examples: 400 m free vs 1500 m running, 1500 m free vs 5000 m running . For each of the distances, the swim/run4X ratio is pretty much the same for men and women. So the decrease of the ratio as the distances goes longer looks like a trend to me, not just random chance. But does that trend keep going? I'm guessing it does if world class 10k swimming times are typically under 2 hours I //COULD\\ check to see if the ratio is the same for jr's and different age groups. Then maybe do extrapolation assumign that the pace for 1600m would not be different from the 1500 m pace. (TooMuchWork) :shakeshead: Looks to me the 1:4 ratio is a pretty good approximation, though. That would make a 10K swim roughly equivalent to a marathon (the same way a 24 mile race or a 29 mile race would be roughly equivalent to the marathon) Mick

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