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: $79.5m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
26MajorsSPLow4.1158.178.679.563.679.595.3

Recent Trades with George Kirby

Mets GET

George Kirby

79.5

Total Value

79.5

Mariners GET

Tylor Megill

9.8

Mark Vientos

47.1

Jett Williams

22.9

Total Value

79.8

IPA

Cardinals GET

George Kirby

76.1

Total Value

76.1

Mariners GET

Tink Hence

20.7

Lars Nootbaar

24.4

Brendan Donovan

27.2

Total Value

72.3

dabeav87

Mariners GET

Kyle Bradish

24.2

Coby Mayo

53.1

Total Value

77.3

Orioles GET

George Kirby

76.1

Total Value

76.1

Billary Clinton

Red Sox GET

George Kirby

84

Tayler Saucedo

0.6

Total Value

84.6

Mariners GET

Jarren Duran

86.2

Total Value

86.2

Hughbeertoe

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