About Karl Meltzer
Karl Meltzer is an ultrarunner and ultrarunning coach based in Sandy, Utah. Meltzer has won more 100-mile ultramarathons than any other ultramarathoner, and has held speed records at major U.S. trails, including the Appalachian Trail and the Pony Express Trail. Meltzer's trail runs have been featured in news outlets from Ultrarunning.com to NBC Sports. Meltzer has been a professional ultramarathoner since 1999, and a coach since 2007.
Biography source:
Wikipedia
