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Data + sources
RAS by Kent Lee Platte·Consensus Big Board (Arif Hasan)·nflverse·PFR·CFBD·All sources & credits·Methodology
Career-value model, live
Privacy·Terms·Press ⌘K to search·Draftanomics2026
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Side-by-side comparison

Backtest

3 prospects · 2019 draft

Each spoke: percentile within the prospect's own position (CB)
CB
Corey Ballentine
CB · Washburn
23.0 yo · 5'11" · 196 lb
IJ
Isaiah Johnson
CB · Houston
23.4 yo · 6'2" · 208 lb
DJ
Donnie Lewis Jr.
CB · Tulane
22.8 yo · — · —

Headline metrics

The four numbers a GM checks first.

Corey Ballentine
Predicted pick
#192
range #175–#209
Bust probability· rough estimate
0%
Consensus rank
—
no boards yet
Career arc
arrives after the combineThe forecast needs his measurables first.
2nd-deal AAV
$3Mmodel
Isaiah Johnson
Predicted pick
#93
range #44–#142
Bust probability· rough estimate
37%
0%comp-based · 0/5
Consensus rank
#168
on 21 boards
Career arc
Bust
tier · Day 2
2nd-deal AAV
$3Mmodel
Donnie Lewis Jr.
Predicted pick
#179
range #149–#209
Bust probability· rough estimate
65%
0%comp-based · 0/4
Consensus rank
—
no boards yet
Career arc
Bust
tier · Day 3
2nd-deal AAV
$6Mmodel

Feature radar

Each axis is the prospect's percentile among prospects at his position (0–100). Bigger shape = stronger across the board.

ProductionAthleticismAgeConsensusPer-play impact (PPA)Breakout ageWorkloadRAS × production
Prospects
  • Corey Ballentine· CB / S
  • Isaiah Johnson· CB / S
  • Donnie Lewis Jr.· CB / S
Axis leaders
  • ProductionCorey Ballentine36
  • AthleticismIsaiah Johnson60
  • AgeDonnie Lewis Jr.70
  • ConsensusIsaiah Johnson34
  • Per-play impact (PPA)Corey Ballentine50
  • Breakout ageCorey Ballentine50
  • WorkloadCorey Ballentine100
  • RAS × productionCorey Ballentine26

Comp overlap

Top five historical comps per prospect. Shared comps highlighted.

No shared comps in the top five. Each prospect has a distinct historical profile.
Corey Ballentine
  • comps arrive after the combineBefore the combine there isn't enough measured data to match him confidently against past players. Comparisons draw on recent NFL careers (2021–2024) and fill in once combine numbers and game-by-game stats land.
Isaiah Johnson
  • Prince Charles Iworah
    CB · #249
    Bust
  • Fabian Moreau
    CB · #81
    Bust
  • Brian Allen
    CB · #173
    Bust
  • Craig Mager
    CB · #83
    Starter
  • Dexter McDonald
    CB · #242
    Contributor
Donnie Lewis Jr.
  • Anthony Brown
    CB · #189
    Starter
  • Shaquill Griffin
    CB · #90
    Bust
  • Corn Elder
    CB · #152
    TBD
  • Ahkello Witherspoon
    CB · #66
    Bust
  • Rasul Douglas
    CB · #99
    Bust

Risk and opportunity flags

Top three concerns and top two upside signals from the model.

Corey Ballentine
Risks
  • Older prospect
    Age 23.0 at draft. Slightly older than the cohort median (~22.5); upside ceiling is trimmed.
Opportunities
  • Consensus says higher
    1 board have him at mean rank #105; model has him #192 — a 87-spot fade. Analysts converging this much above the model is a tell that the model is undervaluing him.
Isaiah Johnson
Risks
  • Older prospect
    Age 23.4 at draft. Slightly older than the cohort median (~22.5); upside ceiling is trimmed.
  • Comp group bust rate
    3 of 4 closest comps with NFL outcomes washed out: Prince Charles Iworah, Fabian Moreau, Brian Allen. The neighborhood in feature space is dangerous.
Opportunities
No standout upside flags.
Donnie Lewis Jr.
Risks
  • Missed entire rookie season
    Drafted #221 by CLE in 2019 but recorded ZERO regular-season NFL snaps. Year-1 absence is one of the strongest single-signal bust predictors we have.
  • No athletic testing
    No Combine drills or Pro Day numbers on file while most of the class has tested — the athletic part of the grade is unmeasured.
  • Consensus skeptic
    1 board place him at mean rank #366; model has him #179 — a 187-spot gap. When boards fade a player this hard, the model is usually the one missing something.
Opportunities
No standout upside flags.

Career trajectory forecast

Projected share of his team's snaps across the first four NFL seasons. Solid = seasons already played, dashed = the forecast.

0%25%50%75%100%Y1Y2Y3Y4Y5Y6Y7Snap share
Corey BallentineIsaiah JohnsonDonnie Lewis Jr.· solid = actuals, dashed = forecast

Verdict

The model's plain-English read.

Corey Ballentine

Draftanomics projects Corey Ballentine (age 23.0 at draft) as a Day 3 dart throw at #192 (range #175-#209, wide band). Bust probability sits at 0% — low. Age 23.0 at draft. Slightly older than the cohort median (~22.5); upside ceiling is trimmed. The call is a genuine fade: the room's consensus prices him around #105 and the model won't take him before #192 — a 87-spot markdown. The discount is earned — older prospect leads the case against.

Isaiah Johnson

Draftanomics projects Isaiah Johnson (age 23.4 at draft) as a third-round / early Day 3 pick at #93 (range #44-#142, very wide band — too little on him yet to project tightly). Bust probability sits at 37% — real but not disqualifying. The comp set is dangerous: 3 of 4 closest comps with known NFL outcomes washed out as backups or busts. Closest comps: Prince Charles Iworah (Bust), Fabian Moreau (Bust), Brian Allen (Bust). Ceiling is Craig Mager (Starter); floor is Dexter McDonald (Contributor). 3 of 4 closest comps with NFL outcomes washed out: Prince Charles Iworah, Fabian Moreau, Brian Allen. The neighborhood in feature space is dangerous. The call is a value lean: #93 against a consensus #106 is a 13-spot edge — enough to move him up the queue, not enough to reach a round early, with older prospect the tax on that edge.

Donnie Lewis Jr.

Draftanomics projects Donnie Lewis Jr. (age 22.8 at draft) as a Day 3 dart throw at #179 (range #149-#209, very wide band — too little on him yet to project tightly). Bust probability sits at 65% — scary. The comp set is dangerous: 3 of 4 closest comps with known NFL outcomes washed out as backups or busts. Closest comps: Anthony Brown (Starter), Shaquill Griffin (Bust), Corn Elder. Ceiling is Anthony Brown (Starter); floor is Corn Elder. Drafted #221 by CLE in 2019 but recorded ZERO regular-season NFL snaps. Year-1 absence is one of the strongest single-signal bust predictors we have. The call is a conviction buy: the model has him 187 spots ahead of the room (board #179 vs consensus #366) — but size the bet for the 65% bust probability; this is a price edge, not a safety edge.