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.

Ketel Marte

Diamondbacks

Player Value Timeline

Future Trade Value

Ketel Marte: Current Control through 2030, Remaining surplus: $77.6m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
32Majors2BDHLow5157.880.277.662.177.693.1

Recent Trades with Ketel Marte

Diamondbacks GET

Jarren Duran

41.9

Patrick Sandoval

4.5

Payton Tolle

37

Anthony Eyanson

5.5

Total Value

88.9

Red Sox GET

Ketel Marte

77.6

Tommy Troy

7.9

Total Value

85.5

mf24

Red Sox GET

Ketel Marte

77.6

Total Value

77.6

Diamondbacks GET

Brayan Bello

27.1

Franklin Arias

22.9

Dorian Soto

12.5

Kyson Witherspoon

17.3

Total Value

79.8

TC392

Diamondbacks GET

Brayan Bello

27.1

Triston Casas

7.2

Kyle Harrison

4.7

Wilyer Abreu

32.3

Marcus Phillips

10.8

Anthony Eyanson

5.5

Total Value

87.6

Red Sox GET

Ketel Marte

77.6

Tommy Troy

7.9

Total Value

85.5

mf24

Red Sox GET

Ketel Marte

77.6

Total Value

77.6

Diamondbacks GET

Kutter Crawford

19.9

Kristian Campbell

7.7

Payton Tolle

37.2

Dorian Soto

12.5

Total Value

77.30

Slyder

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