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Week 4 Flex Rankings & Results — Half-PPR

Jahmyr Gibbs is our Flex #1 for Week 4 in Half-PPR, ahead of Bijan Robinson and Jaxon Smith-Njigba. The biggest riser since the last publish is Keenan Allen (#81→#77); the biggest faller is Breece Hall (#28→#93).

Results table

Week 4 FLEX · Half-PPR · Proj = engine median · Range = 20th–80th percentile · Opp/Total from the market as of 4:05 AM ET · Actual from final stats · Finish = actual rank on this board · Δ = actual − proj · Hit = within 6 ranks or inside the range
RankPlayerTeamOppProjRangeActualFinishΔHitNote
Tier 1 · Must start
1Jahmyr Gibbs RB1
DET @ CAR
DET@ CAR19.515.7FLEX18-3.8HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ CAR · 20–80 range 11.7–29.4.
Tier 2 · Start
2Bijan Robinson RB2
ATL @ NO
ATL@ NO (Mon)17.727.2FLEX7+9.5HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ NO · 20–80 range 10.7–26.8.
3Jaxon Smith-Njigba WR1
SEA vs LAC
SEAvs LAC17.010.1FLEX43-6.9HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs LAC · 20–80 range 8.7–28.5.
4Derrick Henry RB3
BAL vs TEN
BALvs TEN16.914.9FLEX24-2.0HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs TEN · 20–80 range 9.4–26.1.
Tier 3
5Kenneth Walker III RB4
KC @ LV
KC@ LV15.230.4FLEX4+15.2HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ LV · 20–80 range 8.8–23.5.
6Jonathan Taylor RB5
IND @ WAS
IND@ WAS14.722.2FLEX9+7.5HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ WAS · 20–80 range 8.0–23.0.
7Chris Olave WR2
NO vs ATL
NOvs ATL (Mon)14.215.6FLEX19+1.4HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs ATL · 20–80 range 7.3–24.2.
8Christian McCaffrey RB6
SF vs DEN
SFvs DEN13.714.5FLEX26+0.8HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs DEN · 20–80 range 7.5–22.2.
9James Cook RB7
BUF vs NE
BUFvs NE12.815.3FLEX22+2.5HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs NE · 20–80 range 6.9–20.6.
10Kyren Williams RB8
LA @ PHI
LA@ PHI12.531.7FLEX3+19.2MissEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ PHI · 20–80 range 7.0–19.8.
11Jaylen Warren RB9
PIT @ CLE · locked
PIT@ CLE (Thu)12.414.1FLEX29+1.7HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ CLE · 20–80 range 7.3–19.7.
12Amon-Ra St. Brown WR3
DET @ CAR
DET@ CAR12.411.5FLEX39-0.9HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ CAR · 20–80 range 5.9–21.1.
13D'Andre Swift RB10
CHI vs NYJ
CHIvs NYJ12.16.4FLEX59-5.7HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs NYJ · 20–80 range 6.4–19.7.
14Chase Brown RB11
CIN vs JAX
CINvs JAX11.913.6FLEX31+1.7HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs JAX · 20–80 range 6.6–19.0.
15Ashton Jeanty RB12
LV vs KC
LVvs KC11.715.6FLEX20+3.9HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs KC · 20–80 range 6.8–18.3.
16Zay Flowers WR4
BAL vs TEN · Questionable
BALvs TEN11.621.8FLEX10+10.2HitQuestionable (game-day report, seen Sat 16:30 ET): P(active) 70% — median 11.6 if he plays.
17Ja'Marr Chase WR5
CIN vs JAX
CINvs JAX11.54.2FLEX72-7.3MissEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs JAX · 20–80 range 5.5–19.7.
18Davante Adams WR6
LA @ PHI
LA@ PHI11.35.2FLEX68-6.1MissEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ PHI · 20–80 range 5.4–19.7.
19Christian Watson WR7
GB @ TB
GB@ TB11.16.2FLEX61-4.9HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ TB · 20–80 range 5.1–19.7.
20Javonte Williams RB13
DAL @ HOU
DAL@ HOU11.028.8FLEX5+17.8MissEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ HOU · 20–80 range 5.8–17.8.
21Cam Skattebo RB14
NYG vs ARI
NYGvs ARI10.97.1FLEX55-3.8HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs ARI · 20–80 range 5.4–18.6.
22CeeDee Lamb WR8
DAL @ HOU
DAL@ HOU10.832.8FLEX2+22.0MissEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ HOU · 20–80 range 5.2–19.1.
23Aaron Jones RB15
MIN vs MIA
MINvs MIA10.514.8FLEX25+4.3HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; vs MIA · 20–80 range 5.8–17.0.
24Trey McBride TE1
ARI @ NYG
ARI@ NYG10.36.6FLEX57-3.7HitEnsemble: recency, season rate, opportunity × efficiency and opponent blended by fitted weights; @ NYG · 20–80 range 5.0–17.9.
Showing 24 of 96 · tiers 3+ below

What the numbers say

6.7mean abs. error · Half-PPR points, top 36
0.24rank correlation · Spearman, top 36
4 / 12ranked top 12 who finished top 12
61%actuals inside the 20–80 range · target 60%
This version was published after the week's first kickoff, so it is scored as a retrospective, not a forecast.
The engine's read on Week 4
Engine byline · no human author

Engine-generated board: four projection sources (recency, season rate, opportunity × efficiency, opponent) blended by weights fitted on the forecast ledger, scored through 10,000 fitted-distribution outcomes under this format. No analyst has reviewed it yet.

Common questions about Week 4 FLEX rankings

Who is the best flex to start in Week 4 Half-PPR?

Jahmyr Gibbs, our FLEX1 with a 19.5-point median; Bijan Robinson is FLEX2.

When do these rankings update?

Published Tuesday, refreshed Thursday and Saturday mornings, and again Sunday at 8 AM ET; inactives are polled from 90 minutes before each kickoff.

How this board is built
Projectionsens-fit-2026w03-mkt-20260929-2026-w4-2026-09-29+mkt-2026-w04-2026-09-29-18
Market2026-w04-2026-10-06-08
Simulation10,000 outcomes per player
Accuracyscored after the week flips
Rankings versionv6 · Sun, Oct 4, 8:01 AM ET
Ranks tagsunday-2026-w4-0801
Projection sources are blended by weights fitted on the forecast ledger; ranges come from simulated outcomes with injury status priced in. Every number on this page is the engine's. Data credits
VersionsRankings vf6aae813· projections ens-fit-2026w03-mkt-20260929-2026-w4-2026-09-29+mkt-2026-w04-2026-09-29-18· lines 2026-w04-2026-10-06-08· injuries 2026-10-04T15:35:34Z· engine build aabb2e5· Report a problem with this version