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: $78.7m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
27MajorsSPLow3.8114.63678.762.978.794.4

Recent Trades with George Kirby

Mariners GET

Nolan Arenado

-17.3

Masyn Winn

48.9

Lars Nootbaar

42.6

Brendan Donovan

30.9

JJ Wetherholt

41.3

Cash

39

Total Value

185.4

Cardinals GET

Logan Gilbert

80.8

George Kirby

104.6

Total Value

185.40

Ms. Dajuba

Mariners GET

Ronald Acuna Jr.

100.4

A.J. Smith-Shawver

18.4

Total Value

118.80

Braves GET

Randy Arozarena

10.9

George Kirby

104.6

Total Value

115.5

Twadds

Mariners GET

Casey Mize

21.9

Kerry Carpenter

26.3

Max Clark

42.8

Kevin McGonigle

42.3

Total Value

133.3

Tigers GET

George Kirby

104.6

Lazaro Montes

15.5

Michael Arroyo

15.2

Total Value

135.30

Twadds

Mariners GET

Brayan Bello

59.9

Tyler Soderstrom

18.5

Wilyer Abreu

35.7

114.1

114.1

0

Red Sox GET

George Kirby

104.6

Tai Peete

8.7

113.3

113.1

-0.20

Athletics GET

Romy Gonzalez

2.5

Axel Sanchez

0.8

Franklin Arias

15

18.3

18.5

0.20

Twadds

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