An interactive 2025-26 Topps Chrome Updates Basketball pack odds calculator built on Topps' official published odds. Enter how many packs you're opening — pick any refractor, parallel, autograph or insert — and get your live chance of at least one, the expected count, and how many packs it takes for a 50/90/95% shot.
Set how many packs you’re opening, choose your product configuration, then pick the card you’re chasing from the dropdown. The big figure is your chance of pulling at least one of that parallel, autograph or insert across your packs; the table below prices every parallel at once. All rates are Topps’ official published odds.
Product configuration
How many packs are you opening?
packs
What are you chasing?
24 packs · Hobby · Topps Chrome Autographs
16%
chance of at least one Topps Chrome Autographs across 24 packs
≈ 0.17 expectedbase 1 in 141≈ 98 packs for 50%
Packs to hit
Parallel
Per pack
≥1 in 24
Expected
Topps Chrome Autographs
1:141
16%
0.17
Rookie Autographs Lava Lamp Magenta/Purple
1:295
7.8%
0.08
Rookie Autographs Lava Lamp Aqua/Blue
1:387
6.0%
0.06
Future Stars Autographs
1:622
3.8%
0.04
Topps Chrome Autographs Refractors Blue
1:707
3.3%
0.03
Rookie Autographs Lava Lamp Blue/Green
1:711
3.3%
0.03
Topps Chrome Autographs Refractors
1:716
3.3%
0.03
Rookie Autographs Lava Lamp Green/Yellow
1:796
3.0%
0.03
Future Stars Autographs Refractors Blue
1:796
3.0%
0.03
Topps Chrome Autographs Refractors Green
1:936
2.5%
0.03
Future Stars Autographs Refractors Green
1:1,180
2.0%
0.02
1980-81 Topps Basketball Autographs Refractors Green
1980-81 Topps Basketball Autographs Refractors Black
1:7,333
0.3%
0
Future Stars Autographs Refractors Black
1:7,333
0.3%
0
Topps Chrome Autographs Refractors Red
1:8,832
0.3%
0
Rookie Autographs Lava Lamp Black/Red
1:11,498
0.2%
0
1980-81 Topps Basketball Autographs Refractors Red
1:14,720
0.2%
0
Future Stars Autographs Refractors Red
1:14,720
0.2%
0
Topps Chrome Autographs Superfractors
1:51,133
0.0%
0
1980-81 Topps Basketball Autographs Superfractors
1:74,733
0.0%
0
Future Stars Autographs Superfractors
1:74,733
0.0%
0
NBA Debut Patch Autographs
1:74733
0.0%
0
Topps Chrome Autographs Druski Refractors Gold
1:80,960
0.0%
0
Topps Chrome Autographs Druski Refractors Orange
1:138,789
0.0%
0
Topps Chrome Autographs Spike Lee Refractors Orange
1:138,789
0.0%
0
Topps Chrome Autographs Druski Refractors Black
1:388,608
0.0%
0
Topps Chrome Autographs Spike Lee Refractors Black
1:388,608
0.0%
0
Topps Chrome Autographs Druski Refractors Red
1:647,680
0.0%
0
Topps Chrome Autographs Spike Lee Refractors Red
1:647,680
0.0%
0
Topps Chrome Autographs Druski Superfractors
1:1,943,041
0.0%
0
These are Topps’ official published odds for 2025-26 Topps Chrome Updates Basketball (Hobby). A parallel’s rate is for any card in that parallel — a specific player is far rarer. The model treats each pack as an independent draw at the stated rate; real collation clusters hits.
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Topps prints the pull rate of every parallel as “1 in N packs.” The calculator turns that into the numbers people actually ask for:
Chance of ≥1 — the probability at least one of your packs has that card, 1 − (1 − 1/N)^packs.
Expected — the average number across your packs, packs / N.
Packs to a 50 / 90 / 95% shot — solving the same formula backwards, ln(1 − t) / ln(1 − 1/N).
Two honest caveats. A parallel’s odds are for any card in that parallel — a specific player is much rarer. And the model assumes each pack is an independent draw at the stated rate; real Topps collation can cluster or space out hits, so a live box can over- or under-shoot.
Disclaimer: Odds are Topps’ official published figures for 2025-26 Topps Chrome Updates Basketball. The calculator models each pack as an independent draw at the stated per-pack rate; real openings vary. Not financial advice.
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