1. Series 1 Cards:
These are the first set of cards issued in the 2018 Topps Baseball Opening Day Series, featuring stars like Jose Altuve and Mike Trout, as well as rookie players debuting in the 2018 season.
2. Series 2 Cards:
This second series includes additional player cards from earlier this season, plus rare autographed and memorabilia cards for veteran players such as Ichiro Suzuki.
3. Inserts:
These special edition cards feature unique designs of several notable players from recent seasons, including Aaron Judge and Bryce Harper.
4. Black & White Variations:
Limited print black & white variations featuring some of baseball's best players can be found throughout the checklist.
5. Rookie Cards:
Featuring some of the most promising stars from the 2018 draft class, like Ronald Acuña Jr., Shohei Ohtani, and Vlad Guerrero Jr.
6. Parallels:
Each card has multiple color variations that can be found throughout the checklist, including gold, silver, and rainbow foil cards.
7. Autographs:
Autographed cards of both rookies and veterans can be found in every series released for the 2018 Topps Baseball Opening Day Checklist.
8. Memorabilia Cards:
Some special edition cards contain pieces of game-worn jerseys or other memorabilia from various players featured on the checklist.
