Kings of Dynasty

Fantasy Football · Updated June 13, 2026 at 12:28 PM UTC · Default format: Superflex PPR

Jermar Jefferson

RB · — · Rank #432 · Tier T9
72
Projected lifetime fp
6.4
Peak 3yr fp/g
26
Age
4.5
Yrs remaining
25
Long-arc comps
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Career Stats

Season-by-season production from Pro Football Reference, with fantasy points computed under Superflex PPR (1 PPR · 4 pt pass TD · 6 pt rush/rec TD · −2 INT · −2 fumble). Career totals on the bottom row.

YearTeamGPRush AttRush YdsRush TDTgtRecRec YdsRec TDFP
2021DET7157425423025.7
2024DET26220111004.2
Career9219626533029.9

Fantasy-Point Arc Comparables

The top-10 most similar long-arc NFL players matched by fantasy-point production curve at this career stage. Each comp's "Peak 3yr fp/g" is their best 3-season fp/g average under Superflex PPR (era-pace-adjusted to modern). Similarity is bounded in (0, 1] — 1.0 means an identical career-stage profile vector. "Career" notes the comp's NFL longevity; the washed out badge flags comps whose career ended by age 30 with fewer than 8 NFL seasons (the engine’s bust definition). The ⏳ 1985 badge marks comps whose snapshot season predates 1999 — the corpus now spans 1980-2025, so Payton, Emmitt, Marcus Allen, Rice, Marino-era greats are eligible matches. Pre-1999 comps carry a 0.9× confidence haircut because era-pace adjustment is principled but not perfect.

ComparablePosLast season Similarity Peak 3yr fp/g Career Post-age seasons Career fp Projected pts
Joseph Randle washed outRB20150.86712.13 seasons · ended age 242172126
Justin Jackson washed outRB20220.7896.25 seasons · ended age 264288213
Brandon Jackson washed outRB20120.77510.54 seasons · ended age 253374295
Garrison Hearst ⏳ 1993RB20040.77213.89 seasons · ended age 33812491037
Felix Jones washed outRB20130.7669.76 seasons · ended age 265609518
Benny Snell washed outRB20220.7483.64 seasons · ended age 243168106
Brandon BoldenRB20230.7445.111 seasons · ended age 3310454334
Tim Biakabutuka ⏳ 1996 washed outRB20010.73611.06 seasons · ended age 275446381
Lamar Miller washed outRB20210.73513.87 seasons · ended age 2761150978
Curtis Enis ⏳ 1998 washed outRB20000.7157.63 seasons · ended age 242248196

How this number is built

Every component below is sourced from the engine output (engine_rankings.json) and the displayed comp table. The final production score is 72.

Engine: fantasy_arc_v2 Projection path: peak_anchored Comps: 25 Avg similarity (top 20): 0.732 Comp pool washed-out rate: 85% (17/20)
StepValueWhat it is
Comp-weighted projection (v3.3 primary) 360 Σ (simi × post-age-fpi) / Σ simi. Sanity check from the top-20 row data on this page: 354. This is the “weighted average of the comparable players’ actual realised post-age fantasy points” — Phil's 2026-05-28 brief.
Peak-anchored projection 644 The player's own peak-3yr-fp/g × expected games × horizon × 5%/yr time discount, capped at 1.25× the top single-comp projection. Used as a soft blend for elite-tier producers (60/40 comp-weighted / capped peak) so a Mahomes / Allen isn't fully dragged to the comp-pool mean.
Banked-credit floor (diagnostic only) 314 The v3.1 “dynasty equity” floor = career_total_fp × yrs-rem-weight + recent rate × short forward window. v3.3 no longer lets this override the projection — banked production is already realised, not “remaining.” Shown for transparency.
Raw projection (pre-penalty) 360 Blended comp-weighted + capped peak-anchored, per the v3.3 methodology described above.
× Survival 0.343 Multiplier reflecting how many comps washed out by age 30. Today: 1 − 0.5 × bust_rate.
× Sample confidence 0.133 Shrinks small-sample projections toward the position-tier baseline when raw > baseline; multiplies straight otherwise. = max(124 × confidence + baseline × (1−conf), or 124 × 0.133) when below baseline.
× Late-breakout penalty 1.000 QB-only. Scales by confidence so unproven late-breakout rookies only pay a fraction of the discount.
× Missed-season penalty (v3.3) 0.450 Multiplicative haircut for players who didn't play (or only played a partial slate) in the most recent NFL season. 0.70 for a full missed season, 0.85 for <8 games, 0.45 for two+ full missed seasons. missed 4 full seasons (last played 2021)
= Final production score 72 Drives the player's rank on the Similarity Scores page.

Want this player ranked under your league's specific scoring + roster rules? Head to Dynasty Rankings.