Richard Kresser loves a challenge. One of those has been on his radar for six years.  The Arrowhead 135 is an endurance event held in Minnesota during one of the coldest times of the year.  Temperatures are regularly below zero (Fahrenheit), including a record -42° in 2011.  This does NOT include the wind chill!  This race could be the anti-hero of the Badwater 135 and brings with it some very unique challenges including:

• gear you must carry.  Usually pulled in a pulk (a sled that the runners pull behind them)
• shoes?
• sleep?
• cold acclimatization
• hydrating & keeping your water liquid
• only 3 aid stations
• wearing latex gloves