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Jon W.
Jon W. Sendmail

Marathoned: Finish-time prediction calculation

posted over 2 years ago | Report

With hope that this doesn't come across as self-promoting, but rather as a simple community / running resource:

http://marathoned.com

In short, I'm a runner / web-designer, and I just launched this with a colleague of mine who's a runner / web-developer. Tapping some already-in-the-field elevation and timing data, we made a predictive calculator that takes a past-marathon time, and crunches it into a prediction of how you'll do in an upcoming race.

Also, if you *don't* see a specific marathon there now, just let me know -- we're not doing this for any profit / gain, we just hope we can add our bit to what's out there for web-based running calculators.

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  • Sharon S.PRO
    Sharon S. Sendmail

    interesting, but either your calculations are really off, or I'm in worse shape than I thought. I ran Big Sur (2100+' elevation gain), but my predicted time for CIM (with negative elevation gain), is only a couple minutes faster. really?

    posted over 2 years ago

  • Dallas
    Dallas Sendmail

    I like the idea. Looking for VT City and Albany HMRRC Marathon.

    posted over 2 years ago

  • Jon W.
    Jon W. Sendmail

    Heh, nah, you're not in bad shape; it's how our data crunching works out. The impact on pace is dependent on where the elevation occurs. Thanks for trying it out!

    posted over 2 years ago

  • Jon W.
    Jon W. Sendmail

    Ah, good ideas for marathons; we'll look into what it'd take to pull those data in.

    posted over 2 years ago

  • Sharon S.PRO
    Sharon S. Sendmail
    in reply to what Jon W. said:Heh, nah, you're not in bad shape; it's how our data crunching works out. The impact on pace is dependent on where the elevation occurs. Thanks for trying it out!

    Sorry, can you explain that further? I guess I'm not seeing how any elevation gain could be on par with an elevation loss. If the elevation occurred earlier in Big Sur, would that weigh more heavily?

    PS - input Nike women's marathon (SF) :-)

    posted over 2 years ago

  • Jared
    Jared Sendmail

    Hello!
    I was hoping to help answer this.

    The calculator actually accounts for percent grade every .05 miles and applies a pace factor for that specific grade at that specific point in the race. This is far more accurate that assessing the net gain/net loss for the entire course.

    Hope that helps.

    I will be adding the suggested marathons by mid-week! Check back and check your times!

    Hope everyone had a great Labor Day!

    -jared

    posted over 2 years ago

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