NFL Combine: Metrics vs Production for Running Backs

How much does the NFL Combine matter for running backs? John McKechnie dives into the numbers with RotoWire's new combine database tool to unearth some takeaways.
NFL Combine: Metrics vs Production for Running Backs

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NFL Draft: Running Back NFL Combine Testing Analysis

Free agency took center stage recently, but I wanted to circle back to NFL combine metrics and how predictive they are when it comes to future success for running backs.

I did this earlier this offseason with a look at NFL Combine results vs production for wide receivers, and the big takeaway was that the workout warriors were usually just that: workout warriors. The best composite athletes among receivers going back to 2019 rarely amounted to much as legitimate NFL producers. 

That goes to show that there's a level of skill and positional chops that are required to be a successful NFL wide receiver, regardless of how fast a player is or how high he can jump.

Let's see what we can learn from running back workout data from the combine.

RB Composite Athleticism Score
NFL Draft Analytics · Running Backs

Composite Athleticism Score

Size-adjusted · Draft classes 2019–2026 · Drill coverage penalty applied (1=45%, 2=65%, 3=90%, 4=96%, 5+=100%)
Weights: 40 Yd (28%) · Vertical (18%) · Broad Jump (16%) · Shuttle (13%) · 3-Cone (18%) · Bench Press (7%) · Density bonus: rewards compact/powerful builds (±5 pts max) · Big-back speed bonus: +3 pts for ≤4.40 at 225+ lbs · Pro day penalty: −4 pts for non-combine data · Weight floor: scores capped at 75 if below 205 lbs at 5-10 (scaled by height)

CLASS:
SORT:
🥇
Isaac Guerendo
SF · 2024 · 6-0 / 221 lbs · 5/6 drills
95.0
ELITE
40yd 96Vert 99Broad 93Shut 81Cone 81
🥈
Mike Washington
FA · 2026 · 6-1 / 223 lbs · 3/6 drills
83.9
ABOVE AVG
40yd 96Vert 88Broad 90
🥉
Tyrone Tracy
NYG · 2024 · 5-11 / 210 lbs · 5/6 drills
82.9
ABOVE AVG
40yd 61Vert 94Broad 71Shut 94Cone 99
178 results
#PlayerTeamYear HtWtScoreTier 40 Yd %Vert %Broad %Shuttle %Cone %Bench %Drills
🥇Isaac GuerendoSF20246-022195.0ELITE96.198.993.281.280.9
5/6
🥈Mike WashingtonFA20266-122383.9ABOVE AVG96.188.290.3
3/6
🥉Tyrone TracyNYG20245-1121082.9ABOVE AVG61.294.170.593.898.5
5/6
4Bhayshul TutenJAX20255-920982.9ABOVE AVG97.897.393.821.2
4/6
5Elijah MitchellNE20215-1021582.5ABOVE AVG96.176.990.375.080.926.0
6/6
6Breece HallNYJ20225-1121781.7ABOVE AVG87.694.184.1
3/6
7Jaylen WrightMIA20245-1121080.6ABOVE AVG89.980.199.4
3/6
8Chase BrownCIN20235-1021178.2ABOVE AVG78.194.186.9
3/6
9RJ HarveyDEN20255-820576.7ABOVE AVG86.080.186.940.0
4/6
10Chris EvansFA20215-1121576.2ABOVE AVG51.197.386.987.589.749.0
6/6
11Jonathan TaylorIND20205-1022676.1ABOVE AVG87.662.464.272.560.326.0
6/6
12Justice HillBAL20195-1019875.0ABOVE AVG86.094.193.857.0
4/6
13Keaton MitchellBAL20235-819075.0ABOVE AVG92.780.184.1
3/6
14Kene NwangwuNYJ20216-121075.0ABOVE AVG98.980.177.867.594.166.0
6/6
15Blake CorumLAR20245-820574.7ABOVE AVG44.956.588.897.195.0
5/6
16DJ GiddensIND20256-021274.5ABOVE AVG78.190.993.843.8
4/6
17TreVeyon HendersonNE20255-1020273.9SOLID78.184.490.3
3/6
18Alex BarnesFA20196-022673.4SOLID24.784.484.190.076.599.0
6/6
19Quinshon JudkinsCLE20255-1122173.0SOLID61.284.498.9
3/6
20Darrynton EvansFA20205-1020372.2SOLID84.870.477.849.0
4/6
ELITE 92+
GREAT 84-91
ABOVE AVG 74-83
SOLID 64-73
AVERAGE 52-63
BELOW AVG <52
Methodology: Weighted average of combine percentile ranks, prorated for missing drills. Density bonus (RB-specific): ideal weight = 205 + (height inches − 70) × 5 lbs. Compact/powerful builds earn up to +5 pts; undersized players penalized up to −5 pts. Bench press percentile based on reps at 225 lbs vs. RB population. Source data: NFL Combine records.

Methodology

While good receivers come in all shapes and sizes, there's more of an ideal we're chasing when it comes to running back prospects and their ability to become NFL workhorses, which are the most valuable things in fantasy football.

The best running backs tend to be dense and compact, checking in between 5-9 and 5-11 with 205-220 pounds on their frame. They should also be fast for their size, and that's a sliding scale. 

Looking at this year, for instance, Demond Claiborne's 4.37 speed is great and all, but when it's on a 188-pound frame, there's an inherent limit to how many carries we can realistically project for him. Someone like De'Von Achane (who was faster than Claiborne) is an outlier and not an archetype.

It's interesting to look at the contrast between combine performance for wide receivers vs their on-field production. The top wide receiver producers last year were not exactly burning up the track or jumping out of the gym at their combines and pro days. Puka Nacua, Jaxon Smith-Njigba and Amon-Ra St. Brown all graded as average athletes at best.

Running back is a little bit of a different story. It seems like the combine is at least a little more predictive for running backs. There are several standout fantasy running backs who graded out as great all-around athletes. Jonathan Taylor, Breece Hall, Chase Brown and Quinshon Judkins all ranked in the top 20 in this sample. 

Guys like Kyren Williams are outliers on the other end of the spectrum who found a way into a big role and capitalized. 

2026 Rookie Running Backs

It really wasn't a standout group of running backs at the combine. We had a weakened crop with so many opt-outs, and even the guys who did participate often chose to skip some drills. 

Mike Washington is the big test case for metrics vs production in this class. His production profile would have landed him in the discard pile. A fifth-year senior who topped out at 625 yards at Buffalo and took until his fifth season to crack 1,000 yards or 20 receptions? 

YearSchoolGRushYdsAvg.TDRecYdsTgtTDYPT
2021*Buffalo315785.2000000
2022Buffalo121406254.57231353414.0
2023Buffalo121084163.9313352301.5
2024New Mexico State121577254.689741814.1
2025Arkansas1216710706.48282261425.4
Career3 Schools5158829024.9267347011734

If his standout athleticism didn't translate at the college level, how can we expect it to magically click on Sundays? The market seems to be buying in, and it's fair in the sense that his combine performance will get him drafted as high as the third round and likely no later than the fifth. 

Draft capital often leads to opportunity, so that's a mark in Washington's favor. But there's not much to suggest that he will capitalize on said opportunity. And there's even a chance he ends up like Isaac Guerendo, who got himself drafted thanks to his outstanding combine but has still yet to do much on Sundays.

At this point, I wonder a little more about Washington's dynasty stock being overinflated more than his best ball stock. The best ball market has had a fairly measured response to Washington's crazy combine workout; I expected that to catapult him close to the 9th or 10th round. Instead, it has pushed him from fringe draftable to ~12th round status. That's a big jump, but not an egregious spot to settle, all things considered. There are guys I'd prefer to draft (Emmett Johnson, Chris Rodriguez, Keaton Mitchell) who all go behind Washington, but again, it's not a completely ludicrous ADP for Washington.

Quick Hitters

  • Jeremiyah Love: Don't get too fixated on Love's grade in this model. He was penalized for only participating in one out of five drills. In 100% of his completed drills (well, one drill), Love excelled. His 4.36 40 is the best among players in our records who are at least 6'0" and between 210 and 215 pounds. That long speed on that frame is rare, and it backs up Love's label as a home run hitter. He will be an early first-round pick in the NFL Draft and a second-round pick in best ball drafts.
  • Emmett Johnson: I'm not jumping ship on Johnson even with the lackluster testing results. I respect that he still competed, whereas so many of his peers opted out. Johnson didn't have a good combine, obviously, but it wasn't a disaster, either. His frame (5-10, 202) and production still suggest he can make it. Johnson was one of three players to take at least 200 carries and catch 40 passes in college this past season. That ability to take on volume and get an efficient output (5.78 yards per carry, 76% catch rate on 60 targets) is compelling. Maybe Johnson isn't a standout athlete but Tony Pollard and Chuba Hubbard graded out similarly before becoming fantasy standouts.

Overall, this isn't a great incoming class of running backs. Outside of Jeremiyah Love, there isn't a guaranteed top 50 type of prospect. It seems like NFL teams were convinced of that as well, considering the robust RB market in free agency. I still believe in Emmett Johnson and Jadarian Price despite less-than-ideal combine results. 

Jeremiyah Love's second round ADP is pricey but understandable. If there's an endgame steal to be had from this class, I'd side with Nicholas Singleton out of Penn State or Seth McGowan out of Kentucky. Otherwise, I won't be heavily investing in this rookie class in best ball.


 

ABOUT THE AUTHOR
John is the 2016 and 2021 FSWA College Writer of the Year winner. He is a Maryland native and graduate of the University of Georgia. He's been writing for RotoWire since 2014.
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