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: $94.1m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
31Majors2BOFLow5.4190.596.394.175.394.1112.9

Recent Trades with Ketel Marte

Diamondbacks GET

Harry Ford

19.4

Bryce Miller

13

Lazaro Montes

24

Jurrangelo Cijntje

16

72.4

71.3

-1.10

Cubs GET

Zac Gallen

3.4

Jordan Montgomery

-8.9

Gabe Speier

11

5.5

5.4

-0.10

Mariners GET

Ketel Marte

95.2

Josh Naylor

3.2

Eduardo Rodriguez

-27.2

Eugenio Suarez

5.6

Jaxon Wiggins

5.4

82.2

83.4

1.20

NOVOTNYZACK

Blue Jays GET

Zac Gallen

3.1

Ketel Marte

98.9

Eugenio Suarez

5.5

Shelby Miller

0.2

Total Value

107.7

Diamondbacks GET

Andres Gimenez

-44

Orelvis Martinez

6.1

Ricky Tiedemann

13.9

Josh Kasevich

13

Alan Roden

10.8

Arjun Nimmala

25.2

Cash

56

Total Value

81

MPHJDVG

Diamondbacks GET

Luis Gil

16.4

Jameson Taillon

-12.4

Will Warren

36.5

Spencer Jones

10.2

Matt Shaw

34.4

Cam Schlittler

11.9

97

98.30

1.30

Cubs GET

Merrill Kelly

4.9

Roderick Arias

8.2

Shelby Miller

1.2

Rafael Flores

7.3

21.6

22

0.40

Yankees GET

Jalen Beeks

1

Zac Gallen

3.3

Ketel Marte

102.1

Eduardo Rodriguez

-20.6

Pavin Smith

6.4

92.20

90.5

-1.70

NOVOTNYZACK

Diamondbacks GET

Luis Gil

16.4

Roderick Arias

8.2

Will Warren

36.5

George Lombard

44.4

Total Value

105.5

Yankees GET

Ketel Marte

102.1

Jordan Montgomery

-10.1

Total Value

92

Jcaso24

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