Start Blake Corum over Jordan Mason — Week 1 Start/Sit Verdict

Start Corum — the game script and consensus rank edges are too wide to ignore.

Blake Corum plays in the better game script (25.8 implied team points to 21.5) and is the higher consensus play (RB38 to RB40). Mason's edge is snap share, 43% to 29%. The gap is narrow.

Blake Corum

RB38LARvs SF

8.48.99.4 Projected Points

Sit· medium

Jordan Mason

RB40MINvs GB

7.98.38.7 Projected Points

Toss-Up

Why Blake Corum

Sit· medium

RB2 in complementary role. Compact one-cut runner with meaningful carry share behind the starter.

RB38 with a 29% snap share and 2% target share — no passing role means no PPR floor, even with a favorable 25.8 implied total.

SF ranks 18 of 32 against RBs (a middle-of-the-road matchup, 0-game sample).
Vegas implies 25.8 team points as 3.0-point favorites.
Listed RB on the latest depth chart with a 29% snap share in 2025.

The call

Corum is the clear complement, not the workhorse: 29% snap share and a 2% target share over 17 games leaves him dependent on touchdown luck rather than volume.
The 2% target share is the killer in PPR — there's no reception floor to bail out a 10-carry afternoon, and the 9.4 projection reflects that.
Game script is the one thing working for him: a 25.8 implied team total as a 3-point favorite means late-game rushing work is on the table if the Rams lead.
Matchup read is unusable here — the DvP composite sits at 18 of 32 but on a 0-game sample with 0.00 confidence, so there's no soft-spot argument to lean on.
Tips to a flex if Kyren Williams shows up on the injury report; until then RB38 sits behind any typical replacement starter.

Why Jordan Mason

Toss-Up

RB2 in near-even split. Physical downhill runner with contact balance and short-yardage value.

Toss-up — RB40 by consensus and projection: 4% target share in 2025, 8.7 PPR projected vs GB.

GB ranks 17 of 32 against RBs (a middle-of-the-road matchup, 0-game sample).
Vegas implies 21.5 team points as 1.5-point underdogs.
Listed RB on the latest depth chart with a 43% snap share in 2025.

Latest on Mason

Verified

RoleJordan Mason is projected as a 1a/1b co-lead back with Aaron Jones Sr. after the 53-man roster was set, with rookie Demond Claiborne also surviving cuts behind them.Yahoo Sports · Aug 31, 2026

RoleJordan Mason is listed as 1b alongside Aaron Jones Sr. at running back, and is expected to see slightly more first- and second-down snaps than Jones due to Jones' age and injury history.Yahoo Sports · Aug 30, 2026

Head-to-head stats

Metric	Blake Corum	Jordan Mason
Projected points	8.48.99.4	7.98.38.7
Consensus rank	RB38	RB40
Opponent vs position	SF · 18 of 320-game sample	GB · 17 of 320-game sample
Rushing Yards	14 of 32	21 of 32
Rushing TDs	12 of 32	19 of 32
Rushing Attempts	10 of 32	27 of 32
Receptions	30 of 32	20 of 32
Receiving Yards	23 of 32	8 of 32
Anytime TD	16 of 32	9 of 32
Target share	2%(2025)	4%(2025)
Reception share	2%(2025)	5%(2025)
Implied total · spread	25.8-3.0	21.5+1.5
Depth chart	RB2	RB2
Snap share	29%(2025)	43%(2025)