Pick your race distance:
Time you'd like to finish:

 Hrs.  Mins   Secs (optional)
    : minute miles 
    Inverse Race Pace Calculator
Pick your race distance:
Minute miles you'd like to average:

 Mins  Secs   1/100 Secs (optional)
    : : Hrs:Mins:Secs 
Take your target marathon splits with you, courtesy of MarathonGuide.com. Access to a printer and a few basic kindergarten skills are all you need.   Suggestions? Contact JavaScript Boy