Seattle Mariners rookie cards: the key rookie card of every player we cover
The Seattle Mariners player collectors look up most is Randy Arozarena, whose key rookie card is the 2020 Topps #229. Below, the key rookie card of each of the 5 Seattle Mariners players with a sourced card page, then the club's rookies and second-year players, all by collector interest.
Attention measures how much people are looking up this player, a leading indicator collectors watch. It is not a price. Source: Wikipedia pageviews through 2026-10-15.
Seattle Mariners key rookie cards
By our printed criteria, from each player's cited checklist.
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Seattle Mariners rookies and second-year players
Ranked by lookups in the last 30 days.
- 1
Kade AndersonSEA SP
2,940 lookups in 30 daysup 1% this weekFlat
- 2
Colt EmersonSEA SS
1,237 lookups in 30 days
- 3
Brock RoddenSEA 3B
621 lookups in 30 days
- 4
Will WilsonSEA 3B
593 lookups in 30 days
- 5
Cole WilcoxSEA RP
398 lookups in 30 days
- 6
Willie MacIverSEA C
260 lookups in 30 days
- 7
Josh SimpsonSEA RP
224 lookups in 30 days
- 8
Nick DavilaSEA RP
187 lookups in 30 days
How this list is ranked
Collector interest is how many people looked each player up on Wikipedia: the last 30 days for the ranking, the last 7 against the 7 before for the weekly change. It measures attention, not what any card sells for, and Parlae prints no card values. A key rookie card is picked by the criteria printed on each player's card page, from his sourced checklist.
By the Parlae deskCard lists updated Oct 16, 2026 at 12:07 PM ETHow this is builtReport a wrong number