A one-minute painted explainer of the lab's formulas, from combine-style workout numbers to a pressure rate and a salary-cap check, followed by the real record and where to read more.
What if Aaron Donald came back to the Rams? This lab turns a workout into a pass-rush forecast, then checks the contract against the salary cap. The default workout is his real twenty fourteen combine: thirty-five bench reps, a four point six eight forty, and a thirty-two inch vertical. Each adds points to a baseline pressure rate of twenty-one point four percent. Add bonuses for lining up as a three-technique and for facing an eighty-four rated line, and the total lands at forty-one point three percent. From that one number, straight-line rules do the rest: pressure in two point one nine seconds, a double team sixty-six percent of the time, and almost seventeen points of playoff win chance. Then the money. Fourteen point two million in cap space, minus a twelve and a half million salary, plus a three point eight million credit the tool assumes, leaves five and a half million to spare. These are the tool's rules of thumb, not NFL math. Try cutting games remaining to ten, or toughening the line, and watch both numbers move.
At the 2014 NFL Scouting Combine, Donald ran a 4.68-second 40-yard dash, did 35 reps of 225 pounds and jumped 32 inches. The lab adds fixed points per rep, per hundredth of a second and per inch on top of a 21.4% baseline pressure rate; those weights are the tool's own, not a published model.
Donald played ten seasons for the Rams (2014–2023), made the Pro Bowl every year, won Defensive Player of the Year three times and a Super Bowl (LVI), and retired in March 2024 with 111 career sacks.
Time to pressure, double-team rate and 'playoff win delta' are each a simple linear function of the pressure rate (for example, win delta = 0.85 × the pressure gain). They show direction, not a measured relationship.
The lab prorates salary by games remaining out of 17 and adds a $3.8M 'dead cap rollback' credit and an optional $6.5M roster move. Real NFL salaries are paid in weekly installments across the regular season, and cap accounting depends on contract structure, bonuses and league rules.
Career overview, awards, combine results and retirement.
Season-by-season statistics including sacks.
What the 40-yard dash, bench press and vertical jump drills measure.
Background on how league salary caps, including the NFL's, work.
Every figure in the video comes from this lab's own hypothetical formulas and default inputs; it is a what-if model, not a forecast or a report of any real contract.
How does the tool estimate pass-rush disruption and salary cap compliance for a hypothetical comeback?
This simulator uses two decoupled systems: an overhead 2D Matter.js physics engine simulating defensive penetration into a passing pocket, and heuristic mathematical formulas that approximate pass-rush pressure rate, pocket collapse speed, and Rams salary cap room. Physical parameters like bench press reps, sprint times, and gap alignments increase a synthetic drive force and boost pressure percentages, while contract toggles calculate simple prorated base salaries against available cap space.
The simulation uses simplified synthetic formulas rather than official NFL Next Gen Stats tracking data or collective bargaining agreement cap accounting. The 2D top-down physics engine treats offensive linemen and the quarterback as stylized geometric rigid bodies rather than simulating real biomechanical line play, blocking schemes, or pass protections.
Click the '⚡ Rotational Specialist' preset button at the top. The tool updates bench reps to 31, dash speed to 4.82 s, technique to 5-Technique, remaining games to 10, and proposed base salary to $8.0M. The live telemetry updates to reflect the shorter season and adjusted biometrics, while the financial summary displays a prorated salary deduction scaled across 10 games.
The application sets Rams baseline defensive pressure rate at 21.4%. When Aaron Donald's biometric inputs change, the script adds linear factors: (bench - 25) * 0.45, (5.00 - dash) * 18.0, (vert - 26) * 0.35, plus technique adjustments (3.5% for 3-tech, 1.2% for 1-tech, and 2.4% for 5-tech). Time to pressure is calculated linearly as max(1.85, 3.10 - (pressure_rate * 0.022)) seconds.
Salary cap obligations are evaluated using linear proration: proposed base salary multiplied by games remaining divided by 17. Binary toggles optionally add fixed hypothetical adjustments, such as a $3.8M dead-cap credit from un-retirement and a $6.5M restructuring delta, comparing the net result directly against baseline cap space.