Topps have published the checklist for 2025 Bowman Chrome Baseball Mega Box, and it runs to 316 cards across 12 named sets. The odds sheet that came with it states pull rates for 51 of them.
What is in 2025 Bowman Chrome Baseball Mega Box
Base is 50 cards. Counting every parallel, insert and autograph set takes the full checklist to 316.
Largest sets on the checklist:
| Set | Cards |
|---|---|
| MEGA CHROME PROSPECT AUTOGRAPHS | 57 |
| BASE CHROME CARDS | 50 |
| CHROME PROSPECTS | 50 |
| BOWMAN GPK | 50 |
| METEORIC RISE | 25 |
| BOWMAN ASCENSIONS | 25 |
| BOWMAN ROOKIES MEGA AUTOGRAPHS | 19 |
| BASE CARDS IMAGE VARIATIONS AUTOGRAPHS | 11 |
| BASE CARDS IMAGE VARIATIONS | 10 |
| CHROME PROSPECT IMAGE VARIATIONS | 10 |
| CHROME PROSPECT IMAGE VARIATIONS AUTOGRAPHS | 8 |
| Unlisted | 1 |
What are the pull odds?
Topps state odds for 1 configuration: Rate. Below, each set is listed at its shortest stated odds, which is the configuration worth buying if that card is the one you are after.
| Set | Best stated odds | Configuration |
|---|---|---|
| Bowman GPK Super Fractor | 1:136,840 | Rate |
| Base Card Image Variations Rose Gold Mojo Refractor | 1:97,743 | Rate |
| Chrome Prospect Image Variation Rose Gold Mojo Refractor | 1:97,743 | Rate |
| Bowman Rookies Mega Autographs Rose Gold Mojo Refractor | 1:38,014 | Rate |
| Meteoric Rise Rose Gold Mojo Refractor | 1:31,101 | Rate |
| Bowman Ascensions Rose Gold Mojo Refractor | 1:31,101 | Rate |
| Mega Chrome Prospect Autographs Rose Gold Mojo Refractor | 1:12,219 | Rate |
| Bowman Rookies Mega Autographs Red Mojo Refractor | 1:8,146 | Rate |
| Base Chrome Cards Rose Gold Mojo Refractor | 1:7,128 | Rate |
| Bowman GPK Red Refractor | 1:6,842 | Rate |
| Meteoric Rise Red Mojo Refractor | 1:5,750 | Rate |
| Bowman Ascensions Red Mojo Refractor | 1:5,750 | Rate |
Longest odds on the sheet: Bowman GPK Super Fractor, stated at 1:136,840 in Rate. Open a pack a day and you would expect to wait about 375 years for one.
Where to download the checklist
- Topps' own checklist file
- Topps' odds sheet
- Collector Dispatch checklist as a spreadsheet, with your owned and wanted columns if you are signed in
We link to Topps' file rather than hosting a copy, so you always get whatever they are serving now. Our table above is parsed from that same file, and it is what powers the collection tracker.
Frequently asked questions
How many cards are in 2025 Bowman Chrome Baseball Mega Box?
316 cards across 12 sets, with parallels and autographs counted as the published checklist lists them.
What is the rarest card in 2025 Bowman Chrome Baseball Mega Box?
By stated odds, Bowman GPK Super Fractor at 1:136,840 in Rate. Topps publish that figure themselves; it is not an estimate.
Are the 2025 Bowman Chrome Baseball Mega Box odds official?
Yes. They come from the odds sheet Topps published with the release, linked above. Topps note that stated odds reflect the intended configuration and that actual contents can vary.
Where can I download the 2025 Bowman Chrome Baseball Mega Box checklist?
Topps publish it directly, and we link to their file. You can also export our parsed version as a spreadsheet, which includes your own collection columns.
