SANTA CLARA – Quarterback Nick Mullens had a historically great NFL debut on Thursday night at the 49ers of the Raiders' 49ers at Levi's Stadium.
Mullens completed 16 of 22 passes for 262 yards and three touchdowns without interruption when he joined the starting lineup instead of the injured C. J. Beathard.
Mullens created a rating of 151.9 passengers – the best performance in an NFL debut among players with 16 or more passes in the league history. Marcus Mariota had a perfect rating of 158.3 in his 2015 debut for the Titans, but he only had 15 pass attempts.
Mullens is one of only three players since 1950 who has to throw 250 or more yards, three or more TDs and no interceptions in his debut. The other two are Hall of Famers: Fran Tarkenton (1961) and Jim Kelly (1986). However, Kelly did not make his first professional appearance. Previously, he played two seasons in the USFL.
Mullens was the first 49er quarterback to throw two or more touchdown passes in his NFL debut. For his first start, he joined the franchise record of TD passes. He joined Tim Rattay (2003), Ty Detmer (1998) and Matt Cavanaugh (1984).
But Mullens was not alone in his outstanding debut. Here are some Pro Football Focus metrics from the 49er's most unilateral win since a 42:10 win over the Jaguars in 2013:
Joe Staley's 49ers offensive, Tomlinson, Weston Richburg, Mike Person and McGlinchey only gave up quarterback pressure. Person allowed to hurry.
– Short end George Kittle made four catches at his four goals for 108 yards. Each of his goals had a first decline or a touchdown. He leads the NFL under the tight ends when receiving yards (692) and receives yards per route (2.7) and yards after catch (490).
– Outside linebacker Dekoda Watson played just 13 pass-rush snaps, but a total of six pressures with 1.5 sacks and four haste. Watson made his first appearance this season after spending the first eight games in the injured reserve with a thigh injury.
– Defensive Cassius Marsh played 22 pass-rush snaps and picked up 2.5 sacks and three quarterback rushes.
– Cornerback Richard Sherman and Ahkello Witherspoon allowed only 57 yards. Sherman allowed receptions at both times when he was only 12 yards away. Witherspoon gave up three catches of four targets for 45 yards.
Here are the total numbers of snapshots of all 49ers players who saw action:
Total offensive snapshots: 55
Quarterback Nick Mullens 55
Back Race – Kyle Juszczyk 34, Matt Breida 27, Raheem Mostert 14, Alfred Morris 10, Count Mitchell 1
Wide receiver – Marquise Goodwin 40, Pierre Garçon 37, Richie James 23, Kendrick Bourne 12, Dante Pettis 11
Short end – George Kittle 33, Garrett Celek 20, Ross Dwelley 13
Offensive line – Sheets Tomlinson 55, Mike McGlinchey 55, Mike 55, Joe Staley 45, Weston Richburg 45, Garry Gilliam 10, Joshua Garnett 10
Total damage on defense: 57
Defense Line – DeForest Buckner 40, Cassius Marsh 31, Arik Armstead 30, Solomon Thomas 30, Ronald Blair 22, Count Mitchell 20, Sheldon Day 19, D.J. Jones 18
Linebacker – Fred Warner 51, Malcolm Smith 33, Elijah Lee 25, Mark Nzeocha 19, Dekoda Watson 17
Defensive back – Ahkello Witherspoon 57, Tyvis Powell 57, Jimmie Ward 51, Richard Sherman 47, K & Waun Williams 38, Tarvarius Moore 10, D.J. Reed 6, Marcell Harris 6
Total number of special team games: 27
Lee 20, Nzeocha 20, Moore 19, Bradley Pinion 17, Reed 15, Harris 15, Watson 14, Mostert 13, Dwelley 13, James 12, Kyle Nelson 11, Marsh 10, Division 9, Buckner 9, Witherspoon 8, Jones 8, Robbie Gould 7, Tomlinson 7, McGlinchey 7, Gilliam 7, Garnett 7, Staley 7, Armstead 7, Powell 6, Celek 5, Bourne 4, Pettis 4, Emmanuel Moseley 3, Williams 3, Williams 3, Thomas 3, Mitchell 2, Blair 1, day 1