Coming off their bye week the Saints played inside their dome for an NFC duel with the Seahawks. In the first quarter the Saints trailed early as kicker Olindo Mare hit a 20-yard field goal; but they pulled ahead after RB Chris Ivory got a 1-yard TD run. The lead narrowed in the 2nd quarter by Mare getting a 43-yard field goal. The Saints increased it when QB Drew Brees made a 23 and a 3-yard TD pass to WR Marques Colston and WR Robert Meachem. The lead was narrowed again after QB Matt Hasselbeck got a 2-yard TD pass to WR Ben Obomanu; but the Saints replied with Brees throwing a 22-yard TD pass to Colston. The lead narrowed again with Mare hitting a 43-yard field goal. The lead extended in the third quarter with Brees finding Meachem again on a 32-yard TD pass. The Seahawks made the only score of the fourth quarter with Mare making a 20-yard field goal.
Question: How many yards was the shortest field goal?
Answer: 20