Should I start Roschon Johnson or Sione Vaki this week? Week 8 Half-PPR (2026)

THE RESEARCH PICK

Start Sione Vaki

Week 8 · Half-PPR

The available paired forecasts favor Sione Vaki after combining their estimates. The saved inputs do not isolate a stronger football-specific advantage, so treat this as a narrow research lean.

Forecast updated Oct 28, 2026, 1:43 AM ET · Half-PPR

THE ALTERNATIVE

Roschon Johnson

RB · CHIStats & schedule

2.1FF projected

at SEA

Mon 8:15 PM ET

RESEARCH PICK

Sione Vaki

RB · DETStats & schedule

2.3FF projected

↓ -0.6 vs ESPN

vs MIN

Sun 1:00 PM ET

Experimental research pick, not a proven win probability. This does not change either FF projection.

Roschon Johnson

FF2.1 FP

Boosted Trees-2.1 FP

Workload3.4 FP

Monte Carlo4.1 FP

Middle 80% scoring range: 0.9–8.0 FP

His prior three-game scoring average was 10.0 FP. Compared with holding recent form level with the forecast, that scoring history shifts the tree estimate down 1.6 FP. This isolates model sensitivity, not a guaranteed football outcome.
Recent scoring average: 7.1 FP.
The saved workload scenario allocates 1.5 targets and 2.5 carries. These are conditional estimates, not confirmed opportunities.
Return scenarios include Kyle Monangai; their availability can redistribute the workload.
Last 3 recorded games: 7.3 carries per game.

Sione Vaki

FF2.3 FP

Boosted Trees3.1 FP

Workload2.8 FP

Monte Carlo2.7 FP

Middle 80% scoring range: -0.2–6.3 FP

His prior three-game scoring average was 1.1 FP. Compared with holding recent form level with the forecast, that scoring history shifts the tree estimate down 0.1 FP. This isolates model sensitivity, not a guaranteed football outcome.
Recent scoring average: 0.8 FP.
The MIN defensive matchup changes the FF estimate down 10%.
The saved workload scenario allocates 0.6 targets and 3.1 carries. These are conditional estimates, not confirmed opportunities.
Return scenarios include Amon-Ra St. Brown; their availability can redistribute the workload.
Last 3 recorded games: 4.0 carries per game.

Experimental models are research signals, not a validated tiebreaker yet. Missing saved results stay blank. No simulations or training were run for this request.

Roschon Johnson

Fortified2.1

Sleeper0.9

FantasyPros0.8

Roschon Johnson faces SEA in Week 8. Recent scoring average: 7.1 fantasy points.

Sione Vaki

Fortified2.3

ESPN2.9

Sleeper3.3

FantasyPros2.6

Sione Vaki faces MIN in Week 8. Recent scoring average: 0.8 fantasy points. The position-specific defensive matchup adjusts the forecast down 10%.

Sione Vaki projects for 2.3 points in half-PPR scoring, 0.2 more than Roschon Johnson. The gap is small; late injury news or your league’s scoring can change the choice. FantasyPros refresh is rate-limited. Same-week cached projections are used (under one hour old; oldest update Oct 28, 2026, 1:07 AM ET).

Updated Oct 28, 2026, 1:43 AM ET. Projections can change before kickoff.

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Scoring & lineup notes

PPR awards one point per reception; half-PPR awards 0.5; standard awards none. Custom league rules can change the result. Confirm active status, kickoff and lineup locks. Projections are estimates; completed-week scores are actuals.