Ja'Marr Chase and Justin Herbert have been on opposite sides of 27 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. 2 of them were straight up: Ja'Marr Chase for Justin Herbert, nothing else changing hands.
In 3 of these deals exactly one side had to attach something extra, split 1 to 2 between the Ja'Marr Chase side and the Justin Herbert side. That is too close, and too small a sample, to call either player the more valuable.
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 Ja'Marr Chase prices at 10,232 and Justin Herbert at 3,160, so the market currently rates Ja'Marr Chase about 3.2x 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 Ja'Marr Chase | Went with Justin Herbert |
|---|---|---|---|
| 2026-06-06 | -21% | Davante Adams, Baker Mayfield, 1 3rd | Malik Nabers, Dalton Schultz, 2 1sts, 1 2nd |
| 2025-10-03 | +12% | Joe Burrow | Emeka Egbuka, 1 1st |
| 2025-06-19 | -17% | Brock Purdy | Justin Jefferson |
| 2025-06-03 | -27% | Kirk Cousins, Zach Ertz | Khalil Shakir, 1 1st |
| 2024-12-15 | -10% | — | Brandon Aiyuk |
| 2024-08-20 | +21% | — | Chig Okonkwo, Trey Palmer, Josh Downs |
| 2024-08-05 | +10% | Josh Jacobs, Brock Purdy | 3 1sts, 1 2nd, 1 3rd |
| 2024-05-31 | +7% | Josh Reynolds, Baker Mayfield, Chase Claypool | Kareem Hunt, Brandon Aiyuk, Pat Freiermuth, 1 more, 1 2nd |
| 2024-03-23 | +15% | — | — |
| 2024-03-13 | +15% | — | — |
Read each row as: Ja'Marr Chase, plus anything in the third column, was traded for Justin Herbert 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 Ja'Marr Chase; positive means that side came out ahead.
Across all 27, the whole-deal value gap runs +5.8% from the side that received Ja'Marr Chase, so the side ending up with Ja'Marr Chase 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 Ja'Marr Chase for Justin Herbert 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 27 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 Ja'Marr Chase trade · Every Justin Herbert trade
All players with real trade data →