San Francisco 49ersS

Ji'AyirBrown

5'11"202 lbAge 264 seasonsPenn StateDraft 2023 · R3 P87
Week 4 ProjectionBFIQ model
vs Broncos · Sun, Oct 4 · 4:25 PM ET
Solo Tackles2.9
Assist Tackles2.7

Backfield IQ model: 2025 per-game production adjusted for opponent defense.

Shared model
Joint roster forecast
Guarded specialist marginals across both complete rosters
Relational
Offensive snaps
0%
Defensive snaps
96%
Solo tackles4.03P10–P90 1.0–7.0
Assist tackles3.49P10–P90 1.0–7.0

Ranges integrate uncertainty in game environment, team volume, participation, allocation, and conversion. Context links show learned attention, not isolated causal effects.

The game around the player
Role across game environments.
How the same player changes when the game script changes.
99%
Any-snap probability
DB
Pregame role
Solo tackles
opponent plays change tackle chances; defensive role and tackle-credit rate remain player-specific
3.67 → 4.36
One-score game · defensive · slow
SF controls · high scoring · fast
Assisted tackles
opponent plays change tackle chances; defensive role and tackle-credit rate remain player-specific
3.19 → 3.78
One-score game · defensive · slow
SF controls · high scoring · fast
Sacks
opponent dropbacks change rush chances; participation, pressure allocation and finish remain player-specific
0.01 → 0.01
One-score game · defensive · slow
SF controls · high scoring · fast

Scenario means integrate back to the guarded player distribution. “Validated” is awarded per market; a descriptive forecast is not automatically a betting signal.

This season

2026 Game Log

WeekOppResultSOLOAST
Week 1@LAW 27–722
Week 2MIAW 35–1348
Week 3ARIW 36–3024
3 games814
Performance history

2025 Game Log

WeekOppResultSOLOASTINT
Week 3ARIW 16–1512—
Week 6@TBL 19–3021—
Week 7ATLW 20–105——
Week 8@HOUL 15–2641—
Week 9@NYGW 34–2431—
Week 10LAL 26–4234—
Week 11@ARIW 41–2234—
Week 12CARW 20–9412
Week 13@CLEW 26–831—
Week 15TENW 37–241——
Week 16@INDW 48–2724—
Week 17CHIW 42–3813—
Week 18SEAL 3–1353—
Week 19@PHIW 23–1922—
17 games39272