A Matt Prater field goal as time expired gave the Broncos the 51-48 victory their 16th straight in the regular-season, and the Cowboys their second consecutive loss.
Romo, meanwhile, becomes just the 15th player in history to surpass the 500-yard mark but we're guessing he'd trade his place on a pretty exclusive list for a much-needed win. For now, Norm Van Brocklin's 62-year-old record remains safe.
NFL single-game passing yards leaders (via Pro-Football-Reference.com)
1. Norm Van Brocklin, 554 yards, LA Rams vs. New York Yanks, September 28, 1951
2. Matt Schaub, 527 yards, Houston Texans vs. Jacksonville Jaguars, November 18, 2012
3. Warren Moon, 527 yards, Houston Oilers vs. Kansas City Chiefs, December 16, 1990
4. Boomer Esiason, 522 yards, Houston Oilers vs. Kansas City Chiefs, December 16, 1990
5. Dan Marino, 522 yards, Miami Dolphins vs. New York Jets, October 23, 1988
6. Matthew Stafford, 520 yards, Detroit Lions vs. Green Bay Packers, January 1, 2012
7. Tom Brady , 517 yards, New England Patriots vs. Miami Dolphins, September 12, 2011
8. Phil Simms, 513 yards, New York Giants vs. Cincinnati Bengals, October 13, 1985
9. Eli Manning, 510 yards, New York Giants vs. Tampa Bay Buccaneers, September 16, 2012
10. Drew Brees, 510 yards, New Orleans Saints vs. Cincinnati Bengals, November 19, 2006
11. Vince Ferragamo, 509 yards, Los Angeles Rams vs. Chicago Bears, December 26, 1982
12. Tony Romo, 506 yards, Denver Broncos vs. Dallas Cowboys, October 6, 201313. Y.A. Tittle, 505 yards, New York Giants vs. Washington Redskins, October 28, 1962
14. Elvis Grbac, 504 yards, Kansas City Chiefs vs. Oakland Raiders, November 5, 2000
15. Ben Roethlisberger, 503 yards, Steelers vs. Packers, December 20, 2009