Unbroken Bonds GX Pull Rate — 11.10% per pack (1 in 9)
11.10% of Unbroken Bonds booster packs contain a GX card — roughly 1 in 9 packs. Unbroken Bonds ships 14 GX cards in the pool, so the chance of pulling any specific GX is 0.0079 (≈1 in 126). These percentages come from PackRip's own rate table (the same constants the simulator runs on) — they are a model of the product, not a measurement of it. The Pokemon Company has never published pull rates.
Unbroken Bonds GX pull-rate methodology
| Formula | Tier odds = 11.10% per pack; per-card odds = tier odds ÷ 14 GX cards = 1 in 126. |
|---|---|
| Assumptions | One independent rare-slot roll per pack; uniform selection within the tier; no pity timers, box mapping, short-print correction, or edition/condition split. |
| Data source | Set checklist and rarity labels from the bundled Pokemon TCG API catalog; tier rates from rareSlotRates(), mirrored from the live pack opener. |
| Update cadence | Regenerated by prerender whenever set metadata, catalog data, or pull-rate constants change. |
| Limitations | This is a theoretical per-pack rate. Real sealed product can show print-run variance, collation quirks, and market-specific edition differences. |
GX cards in Unbroken Bonds
| # | Card | TCGplayer market | Per-card odds |
|---|---|---|---|
| 1 | Gardevoir & Sylveon-GX #130 | $65.34 | 1 in 126 |
| 2 | Reshiram & Charizard-GX #20 | $55.35 | 1 in 126 |
| 3 | Greninja & Zoroark-GX #107 | $49.96 | 1 in 126 |
| 4 | Marshadow & Machamp-GX #82 | $30.95 | 1 in 126 |
| 5 | Lucario & Melmetal-GX #120 | $30.19 | 1 in 126 |
| 6 | Muk & Alolan Muk-GX #61 | $18.63 | 1 in 126 |
| 7 | Blastoise-GX #35 | $17.97 | 1 in 126 |
| 8 | Pheromosa & Buzzwole-GX #1 | $12.16 | 1 in 126 |
| 9 | Dedenne-GX #57 | $11.67 | 1 in 126 |
| 10 | Venomoth-GX #12 | $4.81 | 1 in 126 |
| 11 | Celesteela-GX #163 | $3.50 | 1 in 126 |
| 12 | Whimsicott-GX #140 | $3.15 | 1 in 126 |
| 13 | Persian-GX #149 | $2.68 | 1 in 126 |
| 14 | Honchkrow-GX #109 | $2.13 | 1 in 126 |
How the 11.10% rate is computed
Every Unbroken Bonds booster pack rolls one rare-slot card (plus uncommons, commons, and energy in fixed slots). The rare slot is itself a weighted random draw across 6 tiers — Rare, Holo Rare, GX, and the era's other chase rarities. The GX tier captures 11.10% of those rare-slot draws (= 11.10 packs out of every 100). Within the GX tier, all 14 cards share the slot uniformly, so per-card odds are 11.10% ÷ 14 = 0.0079 = 1 in 126.
This is the same math PackRip's live Unbroken Bonds simulator uses to roll packs — open as many as you want for free, watch the empirical hit rate converge to the theoretical 11.10% over a large enough sample. Source code lives in src/utils/packGenerator.ts and the per-rarity drift is build-time-asserted against the published rates so the simulator and this landing page can never disagree.
Cumulative probability — how many packs to hit GX
GX pulls follow a geometric distribution with per-pack rate 0.111000. The expected number of packs until your first GX hit is 10; at 95% confidence you'll have one within 26 packs. Most experienced openers crack a sealed booster box (36 packs) and hit GX with probability 98.6% — so the average box yields just over 4.0 GX pulls.
Related on PackRip
- Open Unbroken Bonds packs free — same pull rates, live RNG
- Unbroken Bonds binder completion calculator
- Unbroken Bonds per-pack expected value
- Top 25 most valuable Unbroken Bonds cards
- Every GX card across all 140 booster sets