Pees dialed up several run blitzes to counteract the power and speed of Richardson, a stocky 5-foot-9, 230-pound rookie.
It wasn't always an effective strategy in the first half when Richardson gained 76 yards on 14 carries, but the Ravens' gap integrity, tackling and penetration improved in the second half.
After the Ravens executed some halftime adjustments, Richardson only rushed for 29 yards on nine carries in the second half.
"He's a good, patient back," Suggs said. "He's pretty dangerous."
Besides slowing down Richardson, the Ravens also intercepted Weeden twice. Cornerback Cary Williams and Reed both picked him off.
For a defense that has drawn heavy criticism all season and endured the losses of middle linebacker Ray Lewis and cornerback Lardarius Webb to major injuries, this was a rare triumph — especially after experiencing so many breakdowns during an embarrassing 43-13 loss to a Texans offense headlined by running back Arian Foster prior to a bye.
"It's more of a personal win for us," Cody said. "That's because we had doubts coming in and people were against us and saying, 'We're this,' and, 'We're that.' That's why we're so excited and happy."