Martens Hopes to Ride Wave of Confidence Into Istokpoga 2013 GEICO Challenge Cup, Lake Istokpoga, Oct. 22 - 27, 2012 Martens Hopes to Ride Wave of Confidence Into Istokpoga By Lynn Burkhead Permitted use provided by: MajorLeagueFishing.com ELIMINATION ROUND DAY 3 COMPETITORS Brent Chapman ...READ THE FULL STORY ON Game & Fish GET THE NEWSLETTER Join the List and Never Miss a Thing. Email Address Sign Me Up