"We are proud to be working with Meb again this year and brining his special edition Walkman W Series to our first key dealer, Walmart, " said Brian Pancarik, Senior Product Manager at Sony Electronics.

ENGADGET: Sony unveils Meb Keflezighi Edition Walkman W Series, fills it with the marathoner's coaching wisdom

Read the book Beat The Dealer by Ed Thorp, the former blackjack player who became a hedge fund manager.

FORBES: The Highly Profitable Blackjack Side Bet That Became As Elusive As An Ex-Girlfriend