--- title: "Krabby case on CSGOBig: odds, RTP & drops · gambatracker" description: "Krabby ($31.55) on CSGOBig, a CS2 case site: advertised RTP 90.25% from 12 items with odds, observed 48.25% over 7 openings in 30 days." url: https://gambatracker.com/cases/csgobig/1189 rendered: 2026-11-11T21:17Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [Krabby](https://gambatracker.com/cases/csgobig/1189) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · Krabby A case on CSGOBig, first seen 3 Nov 2026. Every value is CSGOBig's own item price converted from csgobig coin at the rate on the site page. [24h](https://gambatracker.com/cases/csgobig/1189?window=24h) [7d](https://gambatracker.com/cases/csgobig/1189?window=7d) [30d](https://gambatracker.com/cases/csgobig/1189) [All](https://gambatracker.com/cases/csgobig/1189?window=all) Price · $31.55 · 31.55 CSGOBIG\_COIN Advertised RTP · 90.25% · EV $28.47 from 12 items Observed RTP, 30d · 48.25% · 7 openings, odds method Variance · 16.4× · of price², per opening Tail share · 10.6% · of openings carry half the EV Below price · 89.4% · of openings return less than the price ## Advertised vs observed · per window, 95% band and the advertised marker observed, 95% band advertised outside band small sample 24 hours · 4 openings · below min 7 days · 7 openings · below min 30 days · 7 openings · below min since tracking started · 7 openings · below min -0.5% 228.3% 457.0% **Small sample.** 7 openings and 0.7 expected rare hits: below the 100 openings and 5 hits the test needs, so no verdict. ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/csgobig/1189?window=24h) | 4 | 59.70% ±396.7 | — | odds | | [7d](https://gambatracker.com/cases/csgobig/1189?window=7d) | 7 | 48.25% ±299.9 | — | odds | | [30d](https://gambatracker.com/cases/csgobig/1189) | 7 | 48.25% ±299.9 | — | odds | | [All](https://gambatracker.com/cases/csgobig/1189?window=all) | 7 | 48.25% ±299.9 | — | odds | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 12 items · odds sum to 1 · observed counts over 7 openings, 30 days Share of the expected value, most valuable first; colour is the item's rarity. | Item | Odds | Value | EV share | Observed | Expected | Hot / cold | | --- | --- | --- | --- | --- | --- | --- | | [★ M9 Bayonet \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/m9-bayonet-doppler-factory-new-ruby) | 1 in 10,000 | $7,081 7,081 CSGOBIG\_COIN | 2.5% | 0 | 0.0 | — | | [★ M9 Bayonet \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/m9-bayonet-doppler-factory-new-sapphire) | 1 in 10,000 | $3,983 3,983 CSGOBIG\_COIN | 1.4% | 0 | 0.0 | — | | [★ Butterfly Knife \| Blue Steel (Field-Tested) knife · covert](https://gambatracker.com/items/butterfly-knife-blue-steel-field-tested) | 1 in 394 | $1,868 1,868 CSGOBIG\_COIN | 16.6% | 0 | 0.0 | — | | [★ StatTrak™ Falchion Knife \| Doppler (Factory New) StatTrak · knife · covert knife](https://gambatracker.com/items/stattrak-falchion-knife-doppler-factory-new) | 1 in 116 | $291 291 CSGOBIG\_COIN | 8.8% | 0 | 0.1 | — | | [★ StatTrak™ Survival Knife \| Urban Masked (Minimal Wear) StatTrak · knife · covert knife](https://gambatracker.com/items/stattrak-survival-knife-urban-masked-minimal-wear) | 1 in 58 | $147 147 CSGOBIG\_COIN | 8.8% | 0 | 0.1 | — | | [★ StatTrak™ Navaja Knife \| Stained (Battle-Scarred) StatTrak · knife · covert knife](https://gambatracker.com/items/stattrak-navaja-knife-stained-battle-scarred) | 1 in 37 | $92.47 92.47 CSGOBIG\_COIN | 8.8% | 0 | 0.2 | — | | [Sticker \| apEX (Foil) \| Cologne 2016 sticker · exotic](https://gambatracker.com/items/sticker-apex-foil-cologne-2016) | 1 in 20 | $49.75 49.75 CSGOBIG\_COIN | 8.8% | 0 | 0.4 | — | | [USP-S \| Blueprint (Factory New) weapon · mil spec](https://gambatracker.com/items/usp-s-blueprint-factory-new) | 1 in 12 | $29.70 29.7 CSGOBIG\_COIN | 8.8% | 1 | 0.6 | — | | [StatTrak™ AUG \| Arctic Wolf (Factory New) StatTrak · weapon · restricted](https://gambatracker.com/items/stattrak-aug-arctic-wolf-factory-new) | 12.6% | $19.90 19.9 CSGOBIG\_COIN | 8.8% | 1 | 0.9 | — | | [SG 553 \| Cyrex (Factory New) weapon · pink](https://gambatracker.com/items/sg-553-cyrex-factory-new) | 17.3% | $14.53 14.53 CSGOBIG\_COIN | 8.8% | 1 | 1.2 | 0.83× | | [StatTrak™ SSG 08 \| Ghost Crusader (Factory New) StatTrak · weapon · Restricted](https://gambatracker.com/items/stattrak-ssg-08-ghost-crusader-factory-new) | 22.4% | $11.21 11.21 CSGOBIG\_COIN | 8.8% | 3 | 1.6 | 1.91× | | [M4A4 \| Desert-Strike (Factory New) weapon · covert](https://gambatracker.com/items/m4a4-desert-strike-factory-new) | 28.5% | $8.81 8.81 CSGOBIG\_COIN | 8.8% | 1 | 2.0 | 0.50× | Values are CSGOBig's own item prices; EV share = odds × value ÷ EV. Hot / cold compares observed drops of each item with odds × openings; small expected counts are left blank. Odds read from `csgobig:api/cases/getDetails?id=1189`, 11 Nov, 19:23 UTC. ## Biggest drops · from this case, by value **No drops yet** No drop from this case seen yet. ## Latest drops · newest first [All Latest drops →](https://gambatracker.com/drops?casino=csgobig&case=1189) [SG 553 | Cyrex (Factory New) weapon · pink](https://gambatracker.com/items/sg-553-cyrex-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $14.53 14.53 CSGOBIG\_COIN 0.46x 2026-11-11 05:09 UTC [StatTrak™ SSG 08 | Ghost Crusader (Factory New) StatTrak · weapon · Restricted](https://gambatracker.com/items/stattrak-ssg-08-ghost-crusader-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $11.21 11.21 CSGOBIG\_COIN 0.36x 2026-11-11 05:09 UTC [USP-S | Blueprint (Factory New) weapon · mil spec](https://gambatracker.com/items/usp-s-blueprint-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $29.70 29.7 CSGOBIG\_COIN 0.94x 2026-11-11 05:09 UTC [StatTrak™ AUG | Arctic Wolf (Factory New) StatTrak · weapon · restricted](https://gambatracker.com/items/stattrak-aug-arctic-wolf-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $19.90 19.9 CSGOBIG\_COIN 0.63x 2026-11-11 05:09 UTC [M4A4 | Desert-Strike (Factory New) weapon · covert](https://gambatracker.com/items/m4a4-desert-strike-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $8.81 8.81 CSGOBIG\_COIN 0.28x 2026-11-10 04:19 UTC [StatTrak™ SSG 08 | Ghost Crusader (Factory New) StatTrak · weapon · Restricted](https://gambatracker.com/items/stattrak-ssg-08-ghost-crusader-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $11.21 11.21 CSGOBIG\_COIN 0.36x 2026-11-10 04:19 UTC [StatTrak™ SSG 08 | Ghost Crusader (Factory New) StatTrak · weapon · Restricted](https://gambatracker.com/items/stattrak-ssg-08-ghost-crusader-factory-new) Hidden $31.55 31.55 CSGOBIG\_COIN $11.21 11.21 CSGOBIG\_COIN 0.36x 2026-11-10 04:19 UTC ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 3 Nov, 04:27 UTC | $31.55 | 90.25% | 12 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed covert 28.8% covert knife 5.3% exotic 5.1% mil spec 8.5% restricted 12.6% pink 17.3% Restricted 22.4% best hit — 18+ **Case opening is gambling with skins as the currency.** At 90.3% RTP, every $100 put into cases returns $90.25 on average: an expected loss of $9.75 per $100, before any one lucky or unlucky opening. A big drop here says nothing about the next one. [BeGambleAware](https://www.begambleaware.org/) [Help & limits](https://gambatracker.com/responsible-gambling) How these figures are produced and labelled: https://gambatracker.com/llms.txt