As running marathons for charity increases in popularity, some worry participants aren't properly prepared -- chicagotribune.com

As running marathons for charity increases in popularity, some worry participants aren't properly prepared -- chicagotribune.com: "As running marathons for charity increases in popularity, some worry participants aren't properly prepared
As marathons attract more fundraisers, some worry amateurs are unready for rigors of grinding out 26.2 miles"