San Diego (1-1) remained a game behind Denver in unlikely fashion, thumping the visiting Seahawks 30-21.
Philip Rivers threw three touchdown passes to Antonio Gates, and the Chargers dominated possession by holding the ball for 42:15.
For the second straight week, the Broncos (2-0) jumped out to a big lead and held on for a narrow seven-point victory.
Peyton Manning was 21/26 for 242 yards and three touchdowns.
Kansas City (0-2) finished with more first downs (28-19) and total yards (380-325), and dominated the time of possession (36:14-23:46).
What’s a Broncos season opener without multiple touchdown catches by Julius Thomas? Couldn’t tell you, actually.
Thomas, who scored twice in the 2013 season opener against Baltimore, caught seven passes for 104 yards and three scores.
Rahim Moore nabbed two interceptions, and Montee Ball added 83 yards from scrimmage and a touchdown.
They were never likely to challenge Denver for the AFCW title, but there's still something comforting about seeing the Chiefs and Raiders open in losing fashion.
Knowshon Moreno lit up New England in his Dolphins debut, rushing for 134 yards and a touchdown on 24 carries.
Miami took down the visiting Patriots 33-20 by shutting them out 23-0 in the second half.
The Broncos outgained the Cowboys 357 to 165 in yardage, C.J. Anderson punched in a one-yard touchdown, and Kapri Bibbs scored twice.
Brock Osweiler threw for 190 yards and ran for 29 more, while Isaiah Burse added 153 all-purpose yards.
Peyton Manning threw for 243 yards and two picturesque long touchdowns to Emmanuel Sanders, who returned from a nagging quad injury in electric fashion.
It’s too bad the preseason means about as much as a political campaign ad. If things were different, the Broncos would be the hottest team in the NFL right now. In consecutive weeks, they’ve dispatched the Seahawks and 49ers, arguably the two toughest teams in the NFC.
Still, it’s okay to keep hope alive. The Broncos are going to be the frontrunners for awhile—at least until the playoffs.
And don’t forget, they’re still short veterans Chris Harris and Von Miller.
Who said politics can’t be fun?
Peyton Manning (120.8 QB rating), Brock Osweiler (125.5), and Zac Dysert (116.9) were impressive and efficient, while the defensive and kick coverage units added four turnovers and eight passes defensed.
Kayvon Webster (ankle) and Emmanuel Sanders (thigh) were held out, while rookie linebacker Lamin Barrow departed with what is being called a severely bruised lower right leg.
Ahh, nothing like a four-hour game to kick off the preseason, amirite?!
Of course, it also wouldn’t be preseason without a new undrafted running back darling. Former Dukie Juwan Thompson racked up 59 yards on six carries, showing as much speed, vision, and toughness as one can show in a matchup of second-team units.