The San Francisco 49ers won the NFC West division title on Thursday, 21-13, thanks to rookie quarterback Brock Purdy's right arm.
The 49ers (10-4) have won seven straight games and have swept the Seahawks for the first time since 2011.
The Seahawks (7-7) have dropped three straight games at home and four of their last five overall.
The Factors that were responsible for the defeat of Seahawks to the 49ers are as following:
•Purdy's good performance
•Kittles good performance
•Momentum Shift at different stages in the game.
In the first quarter, Purdy connected with a wide-open George Kittle with a well-executed double-pump technique.
Purdy delivered another touchdown ball to a wide open Kittle early in the third quarter on a blown play by the Seahawks defence. This increased the 49ers' advantage to 21-3.
With a passing rating of 117.0, Purdy finished 17 for 26 for 217 yards and two touchdowns.
Kittle had another outstanding performance with four receptions for 93 yards and those two scores against the Seahawks.
Momentums were shifted to both teams at different stages but Seahawks couldn't take advantage of that momentums.