Kirk Cousins and Lamar Jackson have been on opposite sides of 29 real dynasty trades.
Not simulations and not a calculator lining up two numbers. Every one of them is a completed trade from a public Sleeper league, graded at the player values that were current on the day it happened.
Most of those were larger deals with other pieces attached. 1 of them were straight up: Kirk Cousins for Lamar Jackson, nothing else changing hands.
This is the part a calculator cannot tell you. In 8 of these deals exactly one side had to attach something extra, and 8 of those 8 times it was the Kirk Cousins side (0 the other way). The side that keeps having to add is the side holding the lesser asset, so the market has been treating Lamar Jackson as the more valuable of the two.
Everything above is priced on the day each deal happened, which is the only honest way to grade a completed trade. It is not what they cost now. Today Kirk Cousins prices at 25 and Lamar Jackson at 4,824, so the market currently rates Lamar Jackson about 193.0x the other. A pair can lean one way across its history and price the opposite way now; that gap is the whole reason to check the deal in front of you rather than the deal someone made in 2023.
Values as of 2026-07-24.
| Date | Margin | Went with Kirk Cousins | Went with Lamar Jackson |
|---|---|---|---|
| 2024-11-16 | -58% | Nick Chubb, Garrett Wilson | Derrick Henry, DK Metcalf |
| 2024-11-09 | -26% | Jayden Daniels, Zach Charbonnet, Zay Flowers, 1 2nd | DeAndre Hopkins, D'Andre Swift, Travis Etienne, 1 1st |
| 2024-10-09 | -69% | Josh Jacobs, Jordan Mason, 3 3rds | — |
| 2024-04-20 | -41% | 1 1st | — |
| 2024-04-02 | -38% | Darnell Mooney, James Cook, 1 1st, 1 3rd, 1 later pick | 1 1st |
| 2023-11-15 | -6% | Dallas Goedert, Jaylen Waddle | — |
| 2023-11-05 | +23% | Justin Jefferson, De'Von Achane, 2 2nds | Geno Smith, Mike Evans, Aaron Jones |
| 2023-11-01 | -0% | Roschon Johnson, Justin Jefferson, James Robinson, 1 more, 2 3rds | Gus Edwards, J.K. Dobbins, Tyler Huntley, 1 more |
| 2023-10-20 | +3% | Alexander Mattison, Justin Jefferson, Cam Akers, 1 more | Michael Gallup, Kenneth Walker, Zach Charbonnet |
| 2023-10-03 | -36% | Chris Godwin | — |
Read each row as: Kirk Cousins, plus anything in the third column, was traded for Lamar Jackson plus anything in the fourth. An em dash means that side sent nobody else. Margin is the value gap at that day’s prices from the side that received Kirk Cousins; positive means that side came out ahead.
Across all 29, the whole-deal value gap runs -25.1% from the side that received Kirk Cousins, so the side ending up with Lamar Jackson has generally come out ahead on face value. That measures the entire trade, every piece included, not these two players against each other.
A calculator answers “is Kirk Cousins for Lamar Jackson fair” by subtracting one number from another, and it gives every manager in your league the same answer. That tells you nothing about whether the trade closes. What closes it is whether one side has to attach a piece, and which side that usually is. The 29 deals above are the record of what leagues actually agreed to when these two were on the table together.
How trade fairness actually works →
Every Kirk Cousins trade · Every Lamar Jackson trade
All players with real trade data →