IRVING, Texas -- When Tony Romo's second-half numbers were mentioned to Jason Garrett on Thursday, the Dallas Cowboys coach pointed out that Romo’s four-quarter numbers are pretty good, too.

Garrett is correct. Romo leads the league in completion percentage. He is fourth in quarterback rating and yards per attempt. He has the fifth-most touchdowns. Aside from the three interceptions in the first half of the season-opening loss to the San Francisco 49ers, Romo has been pretty good for all four quarters.

It's just that he has been exceptional in the second halves of games.

Romo has the NFL’s best Total QBR at 95.7 in the third and fourth quarters, plus overtime. His 10.1 yards per attempt is first. He has completed 71 percent of his passes, which is second. His eight touchdowns passes are tied for second.

In the second half last week against the New York Giants, Romo completed all nine of his passes for 56 yards and a touchdown.

“I think in the second half, playing teams, you start to get an understanding how they want to attack you,” Romo said. In those possessions, it matters more so with the outcome of the game so you just want to make sure you do things exactly right and go out and execute.”