Want to see what a player’s future trade value will be? Or estimate his free agent or extension contract? You can play around with all kinds of scenarios here if you’re a GM-level subscriber.

Click on the tabs for each scenario. Here's a video showing how the future trade value tab works. And for free agents and extension candidates, use the dropdown to see how the contract would vary by changing the number of years.

Front Office-level subscribers and above can also see a history of past and present trade values. We also visually display our calculations, so you can see the surplus-value gap between field value and salary in each scenario (except for prospects, who have only implied surplus value). And there's a special subscriber-only comment section below each player's data, so you can have an exclusive conversation with other subscribers.

To give you an idea how it works, we’ll always show a featured player for free.

Zac Gallen

Diamondbacks

Player Value Timeline

Future Trade Value

Zac Gallen: Current Control through 2024, Remaining surplus: $3.4m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
29MajorsSPLow0.48.75.33.42.73.44.1

Recent Trades with Zac Gallen

Yankees GET

Zac Gallen

3.4

Total Value

3.4

Diamondbacks GET

Brock Selvidge

4.4

Total Value

4.4

pjm9493

Mets GET

Zac Gallen

3.4

Eugenio Suarez

5.6

Total Value

9

Diamondbacks GET

Jesus Baez

8.2

Jonathan Santucci

4.3

Nate Dohm

1.8

Total Value

14.3

Ms. Dajuba

Mets GET

Zac Gallen

3.4

Eugenio Suarez

5.6

Total Value

9

Diamondbacks GET

Drew Gilbert

8.2

Jonathan Santucci

4.3

Nate Dohm

1.8

Total Value

14.30

Robbie Hyde

Blue Jays GET

Jacob deGrom

-36

Zac Gallen

3.4

Kevin Ginkel

0.5

Josh Naylor

3.1

A.J. Puk

0.4

Eugenio Suarez

5.6

-23

2.5

25.5

Diamondbacks GET

Leo Jimenez

2.5

Orelvis Martinez

6

Adam Macko

2.8

Josh Kasevich

13

Joey Loperfido

4.4

Alan Roden

10.6

39.3

13

-26.30

Rangers GET

Andres Gimenez

-46.9

Davis Schneider

10.1

-36.8

-36

0.80

TBJ4EVER

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