The victory evened the morning session at 2-2.
Poulter especially relished his first victory in a Ryder Cup match with Woods in the opposing pairing. He said a 'wry smile' came across his face when the pairing with Woods was announced.
Poulter improved his Ryder Cup record to 9-3.
“Tiger has been two of my three defeats in the Ryder Cup,” Poulter said. “Justin and I were pretty pumped up to get out there and get that point on the board.”
Poulter made some important putts, including a 15-footer at the 16th to halve the hole and set up a victory at the 17th. Poulter let loose with a double fist pump after burying his putt at No. 16.
“That’s me being me,” Poulter said. “The Ryder Cup is like no other. You can’t do that in any other situation. It means that much. I’ve seen it over the years with Seve [Ballesteros] and Ollie [Jose Maria Olazabal]. That’s why the Ryder Cup is so special. You can hole that putt at the right time, and it does mean that much. So, your emotions just come out.”