MLBTSDB

Should you buy this?

To use

Worth the stubs for your squad

Not enough data

To flip

Buy low, sell higher, after tax

Not enough data

To hold

Hot in real life, may get upgraded

Not enough data

For exchanges

Cheapest way to feed an exchange

Not enough data

Where this card ranks

  • 406th best of 883 relievers

Starting pitchers are ranked against starters, relievers against relievers, the way the team builder picks a staff.

Price history

Down 45% on a week ago.

What it costs to buyWhat you'd get selling
050100150200Oct 10Oct 16Oct 23Oct 306725
Price history

Ratings

Stamina
25
K/9
55
H/9
57
BB/9
50
Velocity
72
Control
36
Break
90

Your ratings

How this card ranks under ratings built for specific jobs. Make one that weighs what you care about, and every card page shows where that card lands.

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Pitching

Stamina
25
Pitching clutch
77
H/9
57
K/9
55
BB/9
50
HR/9
75
Velocity
72
Control
36
Break
90
Stuff
58

Pitches

4-Seam Fastball
94 mph
Circle Change
86 mph
Slider
85 mph
Curveball
79 mph

Player

Position
RP
Bats
R
Throws
R
Age
30
Height
6'2"
Weight
214 lbs
Born
Pennsylvania
Number
72

Fielding & running

Fielding
38
Arm strength
50
Arm accuracy
30
Blocking
0
Speed
38
Baserunning
0
Steal
5
Reaction vs L
23
Reaction vs R
23

Real-world tendencies

Arm slot
Three-quarter 46°

A common release point among MLB pitchers (2026 Statcast)

SubmarineSidearmLow three-quarterThree-quarterHigh three-quarterOver the top

Faint lines: all 725 pitchers in this edition who throw with the same hand.

Obtained from

Roster updates

Captains that boost this card

Build around one of these and this card gets their ability boost.

More Pirates at RP

Questions

How do you get Isaac Mattson?
Buy it on the Community Market, where it costs about 63 stubs right now. It comes from: Daily Login Reward and The Show Pack.
How much is Isaac Mattson worth?
It usually sells for about 55 stubs.
What does Isaac Mattson quicksell for?
The game will always buy it back for 25 stubs.

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