Thanks. Doing a run that is 8.4 miles starting at 7100ft ending at 9450ft.Like to know the avg grade. Thanks everyone …See post below. This might have been dumb, but hey,I’m Back…It will be good after a couple of years to be at a race with friends again
grade=rise over run
8.4 miles=44352 ft
2350 rise/44352 run=.053=5.3% grade
.
Thanks. I will keep that formula
Thanks. Doing a run that is 8.4 miles starting at 7100ft ending at 9450ft.Like to know the avg grade. Thanks everyone
Seriously?
It’s actually the wrong formula but in cycling and running contexts it doesn’t make a difference.
Yes. Actually, this is my first challenge since I was hurt then ill. After 5IM’s had some issues. Was 250lbs in March from normal 185-190(now medication free). I am doing a ride with 5500 gain in 25 miles. Had to sign up for both. With tendonitis been just running twice a week for 6 weeks. Really did not want to do the run…but was challenged. Planning on finishing last. Have been biking about 200 to 250 miles per week for the past 4 weeks. …So first of any kind of race in two and a half years. My plan was to be in training shape by the end of August. This is August 7 and 8th. …Excited to be back, but this will be brutal. But hey, why not. Have not been on a scale since March. Hopefully under 200. Wish me luck…Kenney…Looking to qualify for Boston next year and return to iron distance…Either Vineman or another shot at Silverman
http://headwatersstudio.com/headwatersevents/index.php/headwaters-events/beartooth-challenge
Whats the difference? Is it the same then?
Difference is you want to imagine the whole run as a right angle triangle - you’re running up the longest slopey side which is 8.4 miles long. Rise and Run are actually the vertical side and the flat horizontal side respectively. Rise is 2350ft as the other poster had it but Run is a tiny bit shorter than 8.4 miles. I say it’s irrelevant because all rised and runs are over relatively modest gradients where the Run is far longer than the rise.
Killing time:
halfass calculation: 5.299%
correct calculation: 5.306%
Kenney, make sure you don’t go out of the box too hard due to the 0.007% undercalculation of grade. JK!
The steeper the slope the larger the difference between correct calc and halfass calc.
Difference is you want to imagine the whole run as a right angle triangle - you’re running up the longest slopey side which is 8.4 miles long.
That’s not the way these things are measured normally. A satellite looks at a bird’s eye view and thus measures horizontal distances not straight line. Road signs, etc. also are based on horizontal distances.
Thanks…Won’t be going to hard, well maybe hard but not fast. Probably could of picked an easier return. The ride has 5500ft in 25 miles…with a headwind…I live at 2700ft, so ending the ride at 10550, should be interesting…We should have bets on here if I will puke or not
You guys are both saying the same thing. Grade is calculated on run, not the hypotenuse.
Depends on how the OP’s original 8.4 mile distance was calculated (p2p is correct, distance travelled is not). Mine and Ben’s assumption was that 8.4 miles was calculated as distance travelled not p2p.
That extra .007% is a doozy!
Difference is you want to imagine the whole run as a right angle triangle - you’re running up the longest slopey side which is 8.4 miles long. Rise and Run are actually the vertical side and the flat horizontal side respectively. Rise is 2350ft as the other poster had it but Run is a tiny bit shorter than 8.4 miles. I say it’s irrelevant because all rised and runs are over relatively modest gradients where the Run is far longer than the rise.
Depends on how the OP’s original 8.4 mile distance was calculated
correct
Mine and Ben’s assumption was that 8.4 miles was calculated as distance travelled not p2p.
probably not, assuming he used GPS or a map
what about a wheel sensor or a car odometer?
We are making the same point (albeit a moot one).
I agree it’s a moot point, but he said he did a run, so he probably got the number from a GPS or map. A wheel sensor or odometer would provide straight-line, you are right about that.
Hey, I am in the room. I can hear you ;~) … I was looking at the elevation from map my ride. Thanks
Difference is you want to imagine the whole run as a right angle triangle - you’re running up the longest slopey side which is 8.4 miles long. Rise and Run are actually the vertical side and the flat horizontal side respectively. Rise is 2350ft as the other poster had it but Run is a tiny bit shorter than 8.4 miles. I say it’s irrelevant because all rised and runs are over relatively modest gradients where the Run is far longer than the rise.
Winner!
HAHAHAH classic!
Kenny, what is this event? Just in case I kill off a few more brain cells.