For the first time in the NFL, two divisions will go into week eight with all four teams having a record better than 50%.
Week seven of the NFL left one unbeaten team standing and few - if any - would have picked them out at the start of the season.
Over their first six games of the season, some questioned whether two off-season surgeries had impacted on his ability to run the ball, which had been a valuable weapon for Denver.
Before the season, half the NFL was considered to have a better chance of winning the Super Bowl.
One of those is the NFC North, topped by the Minnesota Vikings.
The Seahawks ran out 20-3 winners to improve their record to 4-3, while the Chiefs are now 5-1.