PropStart/Sit › Week 4 close calls › QB
Brock Purdy or Bo Nix: who should I start in Week 4?
· Brock Purdy: SF vs DEN, Sun, Oct 4, 4:25 PM ET · Bo Nix: DEN vs SF, Sun, Oct 4, 4:25 PM ET
Coin flip in Week 4: Brock Purdy edges Bo Nix, outscoring him in 51.7% of 10,000 simulated games (half-PPR), so let your floor/upside need decide. Same pick in PPR (52%) and standard (52%). Need a safe floor? Brock Purdy (p10 8.9). Need upside? Brock Purdy (p85 26.1).
| Scoring | Player | Wins H2H | Rank | Median | Floor p10 | Ceiling p85 |
|---|---|---|---|---|---|---|
| PPR | Brock Purdy | 52% | QB14 | 16.5 | 8.9 | 26.1 |
| Bo Nix | 48% | QB15 | 16.3 | 8.2 | 26.0 | |
| Half-PPR | Brock Purdy | 52% | QB14 | 16.5 | 8.9 | 26.1 |
| Bo Nix | 48% | QB15 | 16.3 | 8.2 | 26.0 | |
| Standard | Brock Purdy | 52% | QB14 | 16.5 | 8.9 | 26.1 |
| Bo Nix | 48% | QB15 | 16.3 | 8.2 | 26.0 |
Both players are simulated together in the same 10,000 games, so shared-game correlation is included. Ties count half.
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PropSims own-model output; model opinion, not advice. Our ranges are still slightly too narrow (76.5% of outcomes in the 10-90 range vs. 80% target). For entertainment and informational purposes only. 21+.