Brock Purdy
QB
San Francisco 49ers▼ Cold
- Top target Christian McCaffrey is questionable, which can lower the passing game.
- Top target Mike Evans is questionable, which can lower the passing game.
A hurt top target or lead back nudges the projection up a little, since their work tends to shift to teammates. QB and offensive-line flags are shown for context but do not change the number.
This is how QBs have played against the Cardinals in the 2026 season.
| Wk | Team | Player | Cmp | Att | PaYd | PaTD | INT | Car | RuYd | RuTD | FPts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  LAC | Justin Herbert | 17 | 27 | 209 | 1 | 1 | 5 | 29 | 0 | 13.3 |
| 2 |  SEA | Drew Lock | 19 | 26 | 235 | 3 | 0 | 0 | 0 | 0 | 21.4 |
| 3 | SF | Brock Purdy | 15 | 27 | 297 | 4 | 0 | 2 | 34 | 0 | 31.3 |
| 4 |  NYG | Jameis Winston | 18 | 29 | 250 | 3 | 2 | 0 | 0 | 0 | 18.0 |
| 5 |  DET | Jared Goff | 19 | 30 | 271 | 3 | 0 | 1 | 1 | 1 | 28.9 |
| 6 |  LA | Matthew Stafford | 25 | 33 | 222 | 2 | 0 | 0 | 0 | 0 | 16.9 |
| 7 |  DEN | Bo Nix | 15 | 29 | 222 | 1 | 0 | 7 | 73 | 1 | 26.2 |
| 8 |  DAL | Dak Prescott | 19 | 29 | 195 | 1 | 0 | 7 | 20 | 1 | 19.8 |
| Average | 18.4 | 28.8 | 237.6 | 2.3 | 0.4 | 2.8 | 19.6 | 0.4 | 22.0 | ||
| Median | 18.5 | 29.0 | 228.5 | 2.5 | 0.0 | 1.5 | 10.5 | 0.0 | 20.6 | ||
| High | 25 | 33 | 297 | 4 | 2 | 7 | 73 | 1 | 31.3 | ||
| Low | 15 | 26 | 195 | 1 | 0 | 0 | 0 | 0 | 13.3 | ||
Averages are raw, outliers are never removed.
How Brock Purdy should do vs the CardinalsSeason log, the group you pick, and a projection
Season so far, compared with what the group you pick below has done against the Cardinals, plus a projection for this game.
What is this table?
Rows at the top are every game Brock Purdy has played this season, using the same stat columns as the table above.
Compare against picks which group of Cardinals opponents to line them up with: the best QB they faced in each game (1), the second best (2), the third best (3), or all of the top three. Nobody knows which slot Brock Purdy will land in this week, so this is your call, not a guess.
Cardinals avg is the average line of that group. Difference is that minus Brock Purdy's own average: green means the defense gives that slot more than Brock Purdy usually produces.
Projected is Brock Purdy's recent-weighted average scaled by how generous the Cardinals were to the slot you picked. Change the slot and the projected points change, because each slot has a different matchup adjustment. Picking Top 3 uses the usual-role projection.
| Wk | Opp | Cmp | Att | PaYd | PaTD | INT | Car | RuYd | RuTD | FPts |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LA | 25 | 34 | 205 | 3 | 1 | 5 | 29 | 0 | 21.1 |
| 2 | MIA | 20 | 22 | 287 | 2 | 0 | 3 | 30 | 1 | 28.5 |
| 3 | ARI | 15 | 27 | 297 | 4 | 0 | 2 | 34 | 0 | 31.3 |
| 4 | DEN | 19 | 30 | 218 | 2 | 0 | 10 | 29 | 0 | 19.6 |
| 5 | SEA | 19 | 29 | 189 | 2 | 1 | 5 | 6 | 0 | 16.2 |
| 6 | WAS | 21 | 29 | 264 | 1 | 0 | 5 | 28 | 0 | 17.4 |
| 7 | ATL | 27 | 40 | 288 | 1 | 2 | 2 | 5 | 0 | 12.0 |
| Purdy avg | 20.9 | 30.1 | 249.7 | 2.1 | 0.6 | 4.6 | 23.0 | 0.1 | 20.9 | |
| Cardinals QB1 avg | 18.4 | 28.8 | 237.6 | 2.3 | 0.4 | 2.8 | 19.6 | 0.4 | 22.0 | |
| Difference | -2.5 | -1.4 | -12.1 | +0.1 | -0.2 | -1.8 | -3.4 | +0.2 | +1.1 | |
| Projected as QB1 | 25.9 | 37.5 | 310.5 | 2.7 | 0.7 | 5.7 | 28.6 | 0.2 | 23.5 | |
Difference is what the defense allows minus what Purdy averages (green = defense gives up more). Projected stats scale the player's averages by the matchup adjustment, so they are a rough guide.
Start / Sit · Brock PurdyGood confidence · 23.5 proj pts7/10 start
- Brock Purdy averages 20.9 PPR points over 7 games (recent-weighted 18.7) and has played as the team's QB1.
- The Cardinals have allowed 22.0 points to QB1s over 8 games (+33% vs league). The model applies 73% of that gap because the sample is small, giving a +24% adjustment.
- Last season's average (19.7) is blended in at 22% weight because this season's sample is small.
- Projection: 23.5 points.
- For reference, a typical weekly starter-level QB scores about 19.1 and a top-tier one about 23.8.
- A statistical model from box scores, Vegas lines, weather and injury tags. It cannot see role changes or in-game events.
Prediction & chance to scoreBrock Purdy vs the Cardinals
Prediction for Brock Purdy
Nobody knows which slot Brock Purdy will land in this week, so pick the one you expect. The projection changes because each slot faces a different average from the Cardinals.
I predict about 23.5 points for Brock Purdy if playing as a QB1. Brock Purdy has averaged 20.9 over 7 games, and the Cardinals have given up 22.0 to QB1s (+33% vs the league average of 16.5).
How this projection is built
1. The player. Brock Purdy scored: Wk 1 21.1, Wk 2 28.5, Wk 3 31.3, Wk 4 19.6, Wk 5 16.2, Wk 6 17.4, Wk 7 12.0. Average 20.9; weighted toward recent games it is 18.9.
2. The defense. Over 8 games, the Cardinals allowed 22.0 points to their opponent's QB1. The league average for that slot is 16.5, so that is +33%.
3. Trusting small samples less. With 8 defensive games, only 73% of the gap is applied, capped at +/-30%. That gives a +24% adjustment (x1.24).
4. Result. 18.9 x 1.24 = 23.5. Switching slots only changes step 2 and 3: the player's own numbers stay the same, but each slot faces a different defensive average.
It is a statistical model, not knowledge of injuries, game script or weather.
Chance to score
Type a point total to see how likely Brock Purdy is to reach it as a QB1.
Why this percentage?
The projection (23.5) is the middle of the range. Fantasy scores swing a lot from game to game, so the model spreads possible scores around it by about 9.4 points, leaning on Brock Purdy's own game-to-game swings once there are several games (and on typical QB swings before that).
Scores are modelled as right-skewed, since a big game is possible but a very negative one is not. The percentage is the share of that spread at or above 24.
With only 7 games of history, treat this as a rough gauge. It gets sharper as the season goes on. It is never lower than 1% or higher than 99%.
InsightsPlain-English takeaways from the table
- QB1s have averaged 237.6 passing yards, 2.3 passing TDs and 19.6 rushing yards against the Cardinals across 8 games.
- The Cardinals allow 22.0 PPR points to QB1s, +33% versus the league average of 16.5 (ranked 2 of 32, where 1 is most generous). That is a favorable matchup.
- 7 of 8 games reached 15+ PPR points. Scores range from 13.3 to 31.3 (median 20.6).
- Every QB1 in the sample cleared 150 passing yards.
- QB1s scored a touchdown in 8 of 8 games (100%).
Insights are generated by rules from the table above and recalculate every week.