
Quarterback baselines are clean and programmatic: Brock Purdy (197/284, 2167 yards, 20 TD, 7.63 YPA) vs Sam Darnold (323/477, 4048 yards, 25 TD, 8.49 YPA).
From there, props narrow to repeatable opportunity: RB carries (311 vs 184) and top receiving volume via targets (129 vs 163) plus catch rate (79.1% vs 73.0%).
Market script: Seahawks are listed as the favorite (Seahawks -6.5). If the favorite plays from in front, carry volume can climb; if the underdog trails, pass attempts often rise.
If you prefer a complete matchup breakdown, the 49ers vs Seahawks complete matchup breakdown is live as well.
| Metric | AWAY | HOME | How to read it | Betting approach |
|---|---|---|---|---|
| QB YPA | 7.63 | 8.49 | Efficiency multiplier on attempts. Higher = bigger ceiling per dropback. | High YPA + high attempts strengthens an Over case; low YPA means the line often needs extra volume to clear. |
| Pass yards baseline (Att × YPA) | 2,167.0 | 4,048.0 | Mechanical projection of passing yards from volume + efficiency alone. | Use as a reference point. If the posted line is far from this, investigate context (matchup, injuries, pricing). |
| QB TD rate (TD/Att) | 7.04% | 5.24% | Scoring frequency per attempt. Combine with attempts to gauge multi-TD probability. | Rate + volume together are the cleanest signal. A strong rate with low attempts can still be fragile. |
| RB carries | 311 | 184 | The cleanest rushing-yard floor input. More carries = more predictable rushing production. | Carry edges tend to be more actionable than YPC edges. If volume is unclear, rushing props get riskier fast. |
| RB YPC | 3.86 | 3.97 | Efficiency multiplier on carries. Higher YPC often signals bigger plays but more volatility. | Treat YPC as more “ceiling” than “floor.” Pair it with carry volume before leaning into Overs. |
| Rush yards baseline (Car × YPC) | 1,202.0 | 730.0 | Mechanical projection of rushing yards from carries + efficiency. | Baseline anchor only. If the line is near baseline, look for a better edge (role certainty, price, alt lines). |
Conversion: 197/284 (69%), with 7.63 YPA. If attempts stay in the same range, yard props stay more stable.
| Team | Player | Pos | Comp/Att | Comp% | Yards | TD |
|---|---|---|---|---|---|---|
| AWAY | Brock Purdy | QB | 197/284 | 69% | 2167 | 20 |
Prop profile is clean: carries 311, yards 1202, YPC 3.86, TD 10.
| Team | Player | Pos | Carries | YPC | Yards | TD |
|---|---|---|---|---|---|---|
| AWAY | Christian McCaffrey | RB | 311 | 3.86 | 1202 | 10 |
Efficiency: 79.1% catch rate and 7.16 yards per target. If target volume repeats, receiving yard props stay live.
| Team | Player | Pos | Receptions | Targets | Yards |
|---|---|---|---|---|---|
| AWAY | Christian McCaffrey | WR | 102 | 129 | 924 |
4048 yards on 477 throws keeps the passing baseline tied to volume; passing TD total is 25.
| Team | Player | Pos | Comp/Att | Comp% | Yards | TD |
|---|---|---|---|---|---|---|
| HOME | Sam Darnold | QB | 323/477 | 68% | 4048 | 25 |
TD context: 12 TD on 184 carries (~1.30 per 20 carries) is useful when comparing anytime markets.
| Team | Player | Pos | Carries | YPC | Yards | TD |
|---|---|---|---|---|---|---|
| HOME | Zach Charbonnet | RB | 184 | 3.97 | 730 | 12 |
Efficiency: 73.0% catch rate and 11.00 yards per target. If target volume repeats, receiving yard props stay relevant.
| Team | Player | Pos | Receptions | Targets | Yards |
|---|---|---|---|---|---|
| HOME | Jaxon Smith-Njigba | WR | 119 | 163 | 1793 |
If your book offers alt lines, keep the logic consistent: higher volume supports higher floors; higher efficiency supports higher ceilings.

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