Win bonus bets for March Madness with the latest FanDuel promo code offer. Follow our links to activate this welcome bonus in time for second round action on Saturday and Sunday. America's most popular sportsbook app has additional bonuses for the NCAA Tournament, like a new Bet Back Token.Register through our FanDuel promo code links and place a $5 wager on the college basketball game of your choice. If it wins, you'll receive $200 in bonus bets. Note that the odds of your initial bet don't matter, so try finding a likely outcome with short odds to have the best chance at winning the bonus.FanDuel Promo Code for Second Round MatchupsTeams who won their opening matchups on Thursday will play again on Saturday for a chance to advance to the Sweet 16. Find totals, props, moneylines and spreads for all the following games: No. 12 McNeese vs. No. 4 Purdue No. 10 Arkansas vs. No. 2 St. John's No. 5 Michigan vs. No. 4 Texas A&M No. 11 Drake vs. No. 3 Texas Tech No. 9 Creighton vs. No. 1 Auburn No. 6 BYU vs. No. 3 Wisconsin No. 8 Gonzaga vs. No. 1 Houston No. 7 UCLA vs. No. 2 Tennessee Continue using your bonus on Sunday for the rest of the second round. There are also futures odds available, so you can make predictions on team to make the trip to San Antonio or win the title. The Duke Blue Devils currently have the best odds to cut down the nets, followed by Florida, Auburn, Houston and Tennessee.Bet Back Token, Dog of the Day JackpotThe new "Bet Back Token" gives customers the chance to turn a losing bet into a bonus bet. If a bet is looking bad, get a bonus bet by applying the token before the wager settles.FanDuel Sportsbook has had a Dog of the Day $1,000,000 Jackpot each day during the NCAA Tournament. Place a bet on the lowest seed to win on Saturday to score a share of the jackpot. There are special rules in place for certain states that aren't allowed to bet on in-state teams.Stay tuned to the promotions tab to find new profit boosts every day for college basketball, golf, the NBA, NHL and other sports. There is a guide for new bettors to learn about the different types of wagers and how the odds work.Win $200 Bonus with This FanDuel Promo Code OfferBet on the remaining March Madness games after signing up on FanDuel Sportsbook. Take these simple steps to win bonus bets for the second-round matchups over the weekend. Follow our FanDuel promo code links to complete registration. Enter the basic info required to confirm your identity and age. It will ask for your date of birth, email address, residential address and full name. Deposit $5 or more with an accepted payment method, like a debit card, online banking or PayPal. Place a $5 bet on any game. A winning bet will trigger the $200 bonus. It can be split up for several games, so you don't have to use it all at once.Newsweek may earn an affiliate commission if you sign up through the links in this article. See the sportsbook operator's terms and conditions for important details. Sports betting operators have no influence over newsroom coverage.