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Mason Peters cards: checklist & break spots

3 cards in 2 checklists. In a team break you need Seattle Mariners. Cheapest open spot: $20 at Cards in the Land.

Cheapest spots for Mason Peters's team

open fixed-price spots
SEA

Seattle Mariners

from $20
  1. $20Cards in the LandBreak #20: 2026 Topps Update Baseball Hobby Box HALF CASE (6 Boxes)Go
  2. $34Sports Box Breaks2026 Topps Update Series Baseball Hobby (Choose Team - 4-Box Break #3)Go
  3. $34Sports Box Breaks2026 Topps Update Series Baseball Hobby (Choose Team - 4-Box Break #2)Go

All Seattle Mariners breaks →

Every checklist Mason Peters is in

2

2025 Bowman Draft Baseball 2 cards

Team to buy: Seattle Mariners · no open spots for this product right now

#SetType
BD-27 eBayBase CardsBase
BDC-27 eBayChrome Base CardsBase

2025 Bowman Draft Sapphire Baseball 1 card

Team to buy: Seattle Mariners · no open spots for this product right now

#SetType
BDC-27 eBayChrome Base CardsBase

Questions

Which team do I need in a break to get Mason Peters cards?

In the checklists we hold, Mason Peters's cards are listed under Seattle Mariners.

What's the cheapest Seattle Mariners break spot right now?

As of 12:10 PM PT Nov 3, the cheapest open fixed-price Seattle Mariners spot we track is $20 at Cards in the Land (Break #20: 2026 Topps Update Baseball Hobby Box HALF CASE (6 Boxes)).

How many Mason Peters cards are on these checklists?

3 card listings across 2 checklists (a product that reuses another checklist lists the same cards again).

Card lists come from the published checklists linked on each checklist page. Prices are breakers' listed prices; always confirm on the breaker's site.