PropStart/Sit › Week 4 close calls › QB
Patrick Mahomes or Brock Purdy: who should I start in Week 4?
· Patrick Mahomes: KC vs LV, Sun, Oct 4, 4:25 PM ET · Brock Purdy: SF vs DEN, Sun, Oct 4, 4:25 PM ET
Coin flip in Week 4: Patrick Mahomes edges Brock Purdy, outscoring him in 50.3% of 10,000 simulated games (half-PPR), so let your floor/upside need decide. Same pick in PPR (50%) and standard (50%). Need a safe floor? Patrick Mahomes (p10 8.9). Need upside? Brock Purdy (p85 26.8).
| Scoring | Player | Wins H2H | Rank | Median | Floor p10 | Ceiling p85 |
|---|---|---|---|---|---|---|
| PPR | Patrick Mahomes | 50% | QB7 | 17.0 | 8.9 | 26.4 |
| Brock Purdy | 50% | QB8 | 16.9 | 8.8 | 26.8 | |
| Half-PPR | Patrick Mahomes | 50% | QB7 | 17.0 | 8.9 | 26.4 |
| Brock Purdy | 50% | QB8 | 16.9 | 8.8 | 26.8 | |
| Standard | Patrick Mahomes | 50% | QB7 | 17.0 | 8.9 | 26.4 |
| Brock Purdy | 50% | QB8 | 16.9 | 8.8 | 26.8 |
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+.