Answer based on context:

Hoping to snap their five-game losing streak, the Chiefs went home for a Week 11 interconference duel with the New Orleans Saints.  In the first quarter, Kansas City struck first as QB Tyler Thigpen completed a 6-yard TD pass to WR Dwayne Bowe.  The Saints would respond with kicker Garrett Hartley getting a 30-yard field goal.  In the second quarter, New Orleans took the lead as RB Deuce McAllister got a 1-yard TD run.  The Chiefs would answer with rookie kicker Connor Barth getting a 20-yard field goal.  The Saints closed out the half with Hartley making a 23-yard field goal. In the third quarter, New Orleans increased their lead with QB Drew Brees completing a 47-yard TD pass to WR Lance Moore.  Kansas City replied with Barth making a 21-yard field goal, yet the Saints answered with RB Pierre Thomas getting a 1-yard TD run.  In the fourth quarter, the Chiefs tried to rally as Thigpen hooked up with Bowe again on a 5-yard TD pass.  However, New Orleans pulled away with Hartley nailing a 35-yard field goal.

How many field goals did Barth make?
1