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.

George Kirby

Mariners

Player Value Timeline

Future Trade Value

George Kirby: Current Control through 2028, Remaining surplus: $103.9m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
27MajorsSPLow4151.247.3103.983.2103.9124.7

Recent Trades with George Kirby

Mariners GET

Luis Garcia

27.3

Sonny Gray

-1.4

C.J. Abrams

60.2

Brendan Donovan

26.6

Cash

10

122.7

147.3

24.60

Nationals GET

J.P. Crawford

28.9

George Kirby

103.9

Ryan Bliss

14.5

147.3

127.1

-20.20

Cardinals GET

Jackson Rutledge

2.7

Cade Cavalli

9.8

Brady House

18.9

Caleb Lomavita

8.2

39.60

35.2

-4.40

Kmiksovsky

Cubs GET

George Kirby

103.9

Total Value

103.9

Mariners GET

Kevin Alcantara

18.9

Nico Hoerner

20.9

Cade Horton

27.5

Javier Assad

16.3

Total Value

83.6

CLoughlin11

Cubs GET

Mitch Garver

-8.4

George Kirby

103.9

Total Value

95.5

Mariners GET

Nico Hoerner

20.9

Michael Busch

30.8

Owen Caissie

12.5

Cade Horton

27.5

Total Value

91.70

Hartc3

Cubs GET

Luis Castillo

7.7

Gregory Santos

8.3

George Kirby

103.9

Total Value

119.9

Mariners GET

Nico Hoerner

21.2

Justin Steele

51.9

Michael Busch

30

Javier Assad

17

Total Value

120.10

Sam714

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