How do you research an NFL prop against a defense?

Research the defence through comparable roles, with workload beside the result. The useful question is what happened to players being used in a similar role, and how similar their opportunities actually were.

Start with the market and the role

When the player’s next game is on the Lab board, open the player page and select the prop. Rushing yards calls for carries; receiving yards calls for targets and catches. The player’s own opportunity is covered in the rushing yards method and the receiving yards method.

Then open the Head to Head tab and find the Same role vs block for that opponent. Henry’s October 9 export labels it RB1s vs ATL. A running back’s RB1 comparison and a receiver’s WR1 comparison answer different questions about the same opponent. The Game Log tab shows the player’s own games against the selected line.

The current role can use today’s main yardage lines. Each historical peer’s role is chosen from usage in up to four games he played before that game. Read the explanation under the block: the label is a comparison group, not an official depth chart or a fixed workload.

Read the carries before the average

In our October 9 export, Henry was Baltimore’s RB1 against Atlanta. The 2026 comparison contained these four rows:

133 yards on 33 carries, or 33.25 yards and 8.25 carries per row. Henry’s own four completed 2026 games averaged 22.25 carries.

That is a substantial workload difference inside the same role label. The 33.25-yard peer average cannot tell you what Henry would gain on his usual volume. These four rows do not isolate how much of their output came from the defence, the offence or the game situation.

Keep two thresholds separate

The block shows how each peer’s result compares with the currently selected line. Changing that line asks a new descriptive question of the same old results.

The own line column asks a different question: did the peer clear the main yardage number recorded for him before his game? It uses the middle of the main lines posted for that player in the saved board.

In the table above, Warren cleared 43.5. Hubbard, Lloyd and Kamara finished below their own numbers. That is one of four over their own line, with no pushes. It is not Henry’s chance of clearing his next line, and it is not a study showing that Atlanta creates profitable unders.

Check which rows count

Keep the season chip visible. This export has four 2026 Atlanta games and four comparison rows. Its 2025 comparison has 17 rows, with one early exit greyed and excluded from the summary, leaving 16 usable rows. The older rows have no recorded own lines, so they cannot supply a historical own-line rate.

Missing rows, missing stats and missing own lines are different gaps. Read each denominator. A missing value does not become zero, and a push is not an over.

Use the earlier season to see more history, while remembering that personnel and roles can change. Do not combine the seasons just to make a rate look more settled.

To see every defense side by side, NFL Defense vs Position lists what each team has allowed this season to quarterbacks, running backs, wide receivers and tight ends, with its rank out of 32 and the game count behind each figure. It groups by position, not by role, so the Same role vs block is still the place for an RB1 or WR1 comparison.

Repeat the process for a receiver

Drake London’s receiving yards page supplied a WR1-vs-Baltimore block in the same export. The 2026 peers were Alec Pierce, Chris Olave, CeeDee Lamb and Carnell Tate. Read their targets and receptions beside the yards, then ask whether London’s present usage is comparable.

The role makes the comparison more specific than a team-wide defensive total. It does not establish identical routes, cornerback assignments or game situations.

Source: Steezanomics’ October 9, 2026 export and its opponent-role payload. Tables and counts are frozen to that export; the player pages update as the board changes.

When an upcoming NFL game is on the Lab board, select NFL, then RUSH YDS, and open a running back’s player page. In Head to Head, use the Same role vs block’s comparison season chips, read the carries beside each result, and check OWN LINE when it is available. For receiving research, select REC YDS, open a receiver’s page, and compare targets and catches beside the yards.

Between games, Henry’s rushing yards page and London’s receiving yards page keep Game Log and Splits, without a current line or a Head to Head comparison. The opponent block returns when the player’s next game is on the board and reflects that game’s opponent.