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 2029, Remaining surplus: $89.1m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
31Majors2BOFLow5.2182.693.589.171.389.1106.9

Recent Trades with Ketel Marte

Guardians GET

Anthony Volpe

13.8

13.8

17

3.20

Yankees GET

Ketel Marte

89.1

89.1

85.1

-4

Diamondbacks GET

Logan T. Allen

17

Roderick Arias

1.4

Will Warren

34.1

Spencer Jones

16.2

Carlos Lagrange

5.4

Cam Schlittler

14.2

88.30

89.1

0.80

mlbfeeelit

Mariners GET

Ketel Marte

96.4

Tyler Soderstrom

25.3

121.7

119.90

-1.80

Athletics GET

Slade Caldwell

14.9

Jurrangelo Cijntje

15.8

30.70

28.6

-2.10

Diamondbacks GET

George Kirby

62.3

Darell Hernaiz

3.3

Michael Arroyo

22.1

Felnin Celesten

19.7

107.40

111.30

3.90

Twadds

Diamondbacks GET

Austin Wells

33.6

Elmer Rodriguez-Cruz

5.2

Will Warren

34

Luis Serna

2.1

Spencer Jones

16.2

Pico Kohn

1.8

Total Value

92.90

Yankees GET

Ketel Marte

96.4

Total Value

96.4

Mariners GET

Ketel Marte

96.4

Tyler Soderstrom

25.3

Brandon Pfaadt

5.1

126.8

128.5

1.70

Athletics GET

Ryan Bliss

1.3

Druw Jones

8.2

Brandyn Garcia

2.7

Slade Caldwell

14.9

27.1

25.3

-1.80

Diamondbacks GET

Luke Raley

7.3

George Kirby

62.3

Michael Arroyo

22.1

Felnin Celesten

19.7

Jurrangelo Cijntje

15.8

127.2

127.3

0.10

Twadds

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