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.

Marcelo Mayer

Red Sox

Player Value Timeline

Future Trade Value

Marcelo Mayer: Current Control through 2030, Remaining surplus: $45.6m

Total AFV

Total Surplus

Total Salary

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Stats & Information

AgeLevelP1P2AvailabilityYearsAFVSalarySurplusLowMedianHighFangraphs.com URL
23MajorsSS3B562.51745.636.545.654.7

Recent Trades with Marcelo Mayer

Cardinals GET

JD Dix

9

Payton Tolle

35.2

44.2

44.8

0.60

Diamondbacks GET

Jarren Duran

43.6

Marcelo Mayer

45.6

89.2

89.2

0

Red Sox GET

Ketel Marte

80.2

Masyn Winn

44.8

125

124.4

-0.60

Ms. Dajuba

Diamondbacks GET

Ranger Suarez

32.2

Marcelo Mayer

45.6

Total Value

77.80

Red Sox GET

Ketel Marte

80.2

Total Value

80.2

Ms. Dajuba

Diamondbacks GET

Brayan Bello

22.6

Marcelo Mayer

45.9

Kristian Campbell

11.8

Total Value

80.30

Red Sox GET

Ketel Marte

80.2

Total Value

80.2

Ms. Dajuba

Diamondbacks GET

Brayan Bello

22.6

Ceddanne Rafaela

36.6

Marcelo Mayer

45.9

Total Value

105.1

Red Sox GET

Ketel Marte

80.2

Daury Vasquez

2.4

Cash

22.5

Total Value

105.10

Ms. Dajuba

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General Manager Badge
Ms. Dajuba

91, 78, 77 = games played by Mayer in ‘22, ‘23, ‘24. If the Red Sox could get current value of 65 in a return I think it would be considered.

General Manager Badge
Ms. Dajuba

Framework of a ‘25 ‘26 offseason deal. Marcello Mayer (87 games so far in ‘25 but could be done for the year) to the Twins for SP Joe Ryan.

General Manager Badge
Ms. Dajuba

Cora has picked Mayer to be this springs dog house tenant, Breslow should trade him before Cora tanks & destroys all his value.

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