SF San Francisco 49ers · DL· #55

Sebastian Valdez

Age: 24
Height: 6'3"
Weight: 301 lbs
College: Washington; Montana State
Drafted: Not drafted
Experience: 2nd NFL season

49ers 5-0Offense 1stDefense 9th

Compare with another player Interior linemen leaderboard

Overall

26th of 108 interior linemen

Early read

Most of his numbers are still mostly luck; 50 is average

Grades updated Mon, Oct 12, 3:59 PM ETRechecked every few hours on game days

01 / 10

The read

Sebastian has played 3 games for 8 tackles, 4 solo tackles and 4 assisted tackles, but every advanced number is still mostly luck at this point, so his grade of 51 is a placeholder rather than a verdict.

Game to game on pressures per 100 snaps: best 8.0 in Week 4 against DEN, worst 0.0 in Week 5. He beat the typical interior lineman's pressures per 100 snaps in 1 of 3 games.
Back in the lineup: He missed 2 games earlier, then played all of the last 2 games, on the field for about 4 of every 10 plays when he plays.
Too early to call: pressures per 100 snaps and tackles for loss per 100 snaps. After 5 games the gaps between interior linemen on those stats are still mostly chance, so we show them without ranking.

Written from his numbers, not from film. 3 games are behind the season figures.

02 / 10

His team

A player is part of a unit. Here is how the San Francisco 49ers do at his job, and who he shares the room with.

Sebastian is the 49ers' 2nd-best interior lineman by grade (of 3), and the 49ers' pass rush ranks 17th of 32.

49ers unit

Pass rush: 17th of 32

Sacks per dropback5.9% 18th
Pressure per dropback21% 17th
Quarterback hits per dropback14.6% 18th

Ranked among all 32 teams. See every team.

San Francisco 49ers interior linemen

His room, by grade

1Gracen Halton DL51
2Sebastian Valdez DL51
3Osa Odighizuwa DL51

Overall grade, 20 to 80, against all interior linemen in the league. A teammate with too few plays to grade is listed without one.

03 / 10

How he stacks up

Every graded stat at a glance, against all the interior linemen in the league.

Tackles for loss per 100 snaps1.1mostly luck so far
Pressures per 100 snaps2.2mostly luck so far
Sacks per 100 snaps0.0mostly luck so far

Left is the worst at his job, right is the best, and the line down the middle is average. The bubble is his percentile: 90 means better than nine in ten qualifying interior linemen. Faded bars are still small samples. Outlined bars are stats where, this early, the gaps between players are mostly luck, so they are not ranked yet.

04 / 10

In the league

Every interior lineman in the league as a dot: pick any two stats and see where he sits, who is around him, and who is ahead.

Who is around him on the leaderboards

His best numbers, with the interior linemen just ahead of and behind him. A number is easier to judge beside the names.

Pressures per 100 snaps

The interior linemen just above and below him

38thDerrick Harmon Steelers2.4
39thJoshua Farmer Patriots2.3
40thSebastian Valdez 49ers2.2
41stJonah Laulu Raiders2.2
42ndCalais Campbell Ravens1.8

The leader is further up the board.

Tackles for loss per 100 snaps

The interior linemen just above and below him

32ndDerrick Harmon Steelers1.2
33rdJoshua Farmer Patriots1.1
34thSebastian Valdez 49ers1.1
35thNazir Stackhouse Titans1.1
35thNeville Gallimore Bears1.1

The leader is further up the board.

Build and age against the position

Size and age are not good or bad. They show what kind of interior lineman he is and how he compares physically with the interior linemen in the league.

Height

6'3"

Sebastian Valdez is shorter than 58% of interior linemen.

6'2"low to high · typical 6'3"6'5"

Weight

301 lbs

Sebastian Valdez is lighter than 67% of interior linemen.

290low to high · typical 308331

Age

Sebastian Valdez is younger than 81% of interior linemen.

23low to high · typical 2732

05 / 10

How he has progressed

Where he has ranked among interior linemen after each week, and every game behind it.

Not enough games yet to draw a line.

The line is his season-to-date rank among players at his position after each week, from 99 (the best in the league) down to 1 (the worst). It rises when he passes other players, not when he has one big game. Early weeks are noisier because fewer plays are behind them. The shaded weeks are the recent stretch.

Pressures per 100 snaps game by game
Week	Opponent	That game	snaps	Season rank after
3	vs ARI	0.0	32	Not yet
4	vs DEN	8.0	25	Not yet
5	vs SEA	0.0	33	64th pct

“Not yet” means too little of the season was behind him to rank him fairly against interior linemen. A week-by-week rank needs most of the 80 snaps that grade a full season, so early weeks stay blank for players who see few plays, like kickers. It says nothing about how he played.

One game is a small sample: a single stat over 30 snaps can swing on a handful of plays. Shaded rows are the recent stretch.

06 / 10

The numbers, in context

Each one against every interior lineman with at least 80 snaps. Right on the strip is better.

Pressures per 100 snaps

Mostly luck so far

2.2

Too early to rank. On 90 snaps, luck still decides who is on top of interior linemen.

0.0worse to better2.9

Sacks, hits and hurries as Pro Football Reference charts them, for every 100 snaps he plays. A pass rusher is doing his job on plays that never become a sack.

The box score: A sack total misses most of what a rusher does and depends on how many snaps he plays.

Does it show up in winning? Across 158 games league-wide, a good or bad game on pressures per 100 snaps from a interior lineman has not lined up much with his team winning (48% wins in the best third, 37% in the worst).

Sacks per 100 snaps

Mostly luck so far

0.0

Too early to rank. On 90 snaps, luck still decides who is on top of interior linemen.

0.0worse to better0.9

Sacks for every 100 snaps he plays. Rare, so it swings fast; pressures are the steadier read.

The box score: A sack total ignores how many snaps he played.

Does it show up in winning? Across 158 games league-wide, a good or bad game on sacks per 100 snaps from a interior lineman has not lined up much with his team winning (39% wins in the best third, 36% in the worst).

Tackles for loss per 100 snaps

Mostly luck so far

1.1

Too early to rank. On 90 snaps, luck still decides who is on top of interior linemen.

0.0worse to better1.8

Plays he ends behind the line of scrimmage, for every 100 snaps.

The box score: Tackles for loss are counted, but never against the snaps he played.

Does it show up in winning? Across 158 games league-wide, teams won 47% of the time when their interior lineman was in the best third on tackles for loss per 100 snaps, and 34% when he was in the worst third.

07 / 10

Playing time

He has played in 2 of his team's 4 games with snap counts, on the field for about 38% of the team's defensive plays when he plays.

Back in the lineup. He missed 2 games earlier, then played all of the last 2 games, on the field for about 4 of every 10 plays when he plays.

out
LAR
out
MIA
37%
ARI
38%
DEN
?
SEA

Each column is a game: the share of his team's defensive snaps he played. 80% means about 8 of every 10 plays. “Out” means he did not play; a question mark means snap counts are not posted yet. Shaded games are the recent stretch.

08 / 10

Game by game

Every game this season: how it ended for his team, how much he played, his box score, and the advanced numbers from that one game. One game is a small sample, so read the right-hand columns as a snapshot, not his level. A dash means that number is not in yet (charting posts a day or two after a game), not a zero.

Pressures per 100 snapsHigher is better

▲ Best game: 8.0per 100 snapsWeek 4 DEN, W 24–142 pressures in 25 snaps
▼ Worst game: 0.0per 100 snapsWeek 5 SEA, W 32–290 pressures in 33 snaps

Tackles for loss per 100 snapsHigher is better

▲ Best game: 3.0per 100 snapsWeek 5 SEA, W 32–291 tackle for loss in 33 snaps
▼ Worst game: 0.0per 100 snapsWeek 4 DEN, W 24–140 tackles for loss in 25 snaps

Sebastian Valdez game by game
Game	Result	Snaps	Tkl	Solo	Ast	TFL	Sacks	Press	Int	Missed	Pressures/100	TFL/100
Wk 3 vs ARI	W 36–30	37%	3	1	2	0	0	0	0	0	0.0	0.0
Wk 4 vs DEN	W 24–14	38%	2	1	1	0	0	2	0	0	8.0	0.0
Wk 5 vs SEA	W 32–29	–	3	2	1	1	–	–	–	–	0.0	3.0

09 / 10

The box score

The traditional totals, with where each ranks among interior linemen. A total rewards volume, which is why the advanced numbers above matter.

Sebastian Valdez box score totals
Stat	Total	Rank
Tackles	8	74th of 108
Solo tackles	4	46th of 108
Assisted tackles	4	79th of 108
Tackles for loss	1	33rd of 108
Sacks	0	44th of 108
Pressures	2	49th of 108
Passes defended	0	33rd of 108
Interceptions	0	1st of 108
Missed tackles	0	45th of 108 (most)

10 / 10

Players with a similar profile

The interior linemen whose grades are closest to his across the same stats. Similar means similar numbers, not the same style of play.

ATL DL
Gervon Dexter Sr.
Overall 52 · 2.1
Compare
IND DL
Grover Stewart
Overall 51 · 1.5
Compare
BUF DL
DeWayne Carter
Overall 51 · 1.6
Compare
CAR DL
Aaron Hall
Overall 52 · 3.5
Compare

Ranks are among players at the same job who have enough plays to be graded. Grades and rankings come from play-by-play, charting and snap-count data, so they cannot see blocking, route running or assignments. See how the grades work.

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Data: nflverse play-by-play, CC BY 4.0. Also FTN charting, Pro Football Reference advanced stats, snap counts and injury reports, all through nflverse. Calculations and charts by Raiders Rundown.

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