--- title: "Crystal case on CSGOBig: odds, RTP & drops · gambatracker" description: "Crystal ($330.00) on CSGOBig, a CS2 case site: advertised RTP 90.00% from 17 items with odds. Item values at the site’s own prices, biggest and latest drops." url: https://gambatracker.com/cases/csgobig/359 rendered: 2026-11-11T19:19Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [Crystal](https://gambatracker.com/cases/csgobig/359) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · Crystal 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/359?window=24h) [7d](https://gambatracker.com/cases/csgobig/359?window=7d) [30d](https://gambatracker.com/cases/csgobig/359) [All](https://gambatracker.com/cases/csgobig/359?window=all) Price · $330.00 · 330 CSGOBIG\_COIN Advertised RTP · 90.00% · EV $296.99 from 17 items Observed RTP, 30d · — · no counted openings Variance · 9.2× · of price², per opening Tail share · 1 in 25 · of openings carry half the EV Below price · 85.0% · of openings return less than the price ## Advertised vs observed · per window, 95% band and the advertised marker **No counted openings yet** Openings inside battles and free cases are listed but never counted. ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/csgobig/359?window=24h) | 0 | — | — | — | | [7d](https://gambatracker.com/cases/csgobig/359?window=7d) | 0 | — | — | — | | [30d](https://gambatracker.com/cases/csgobig/359) | 0 | — | — | — | | [All](https://gambatracker.com/cases/csgobig/359?window=all) | 0 | — | — | — | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 17 items · odds sum to 1 · observed counts over 0 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 | | --- | --- | --- | --- | --- | --- | --- | | [★ StatTrak™ M9 Bayonet \| Doppler (Factory New) (Sapphire) StatTrak · knife · covert · Sapphire](https://gambatracker.com/items/stattrak-m9-bayonet-doppler-factory-new-sapphire) | 1 in 200 | $9,580 9,580 CSGOBIG\_COIN | 16.1% | 0 | 0.0 | — | | [★ StatTrak™ Karambit \| Doppler (Factory New) (Sapphire) StatTrak · knife · covert · Sapphire](https://gambatracker.com/items/stattrak-karambit-doppler-factory-new-sapphire) | 1 in 200 | $7,100 7,100 CSGOBIG\_COIN | 12.0% | 0 | 0.0 | — | | [★ Talon Knife \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/talon-knife-doppler-factory-new-sapphire) | 1 in 133 | $3,700 3,700 CSGOBIG\_COIN | 9.3% | 0 | 0.0 | — | | [Souvenir M4A1-S \| Imminent Danger (Factory New) Souvenir · weapon · covert](https://gambatracker.com/items/souvenir-m4a1-s-imminent-danger-factory-new) | 1 in 100 | $3,000 3,000 CSGOBIG\_COIN | 10.1% | 0 | 0.0 | — | | [★ Skeleton Knife \| Crimson Web (Factory New) knife · legendary](https://gambatracker.com/items/skeleton-knife-crimson-web-factory-new) | 1 in 80 | $2,400 2,400 CSGOBIG\_COIN | 10.1% | 0 | 0.0 | — | | [★ Hand Wraps \| Cobalt Skulls (Factory New) gloves · legendary](https://gambatracker.com/items/hand-wraps-cobalt-skulls-factory-new) | 1 in 67 | $1,800 1,800 CSGOBIG\_COIN | 9.1% | 0 | 0.0 | — | | [★ Karambit \| Marble Fade (Factory New) knife · covert](https://gambatracker.com/items/karambit-marble-fade-factory-new) | 1 in 40 | $1,250 1,250 CSGOBIG\_COIN | 10.5% | 0 | 0.0 | — | | [★ M9 Bayonet \| Night (Minimal Wear) knife · covert](https://gambatracker.com/items/m9-bayonet-night-minimal-wear) | 1 in 33 | $620 620 CSGOBIG\_COIN | 6.3% | 0 | 0.0 | — | | [★ Flip Knife \| Marble Fade (Factory New) knife · covert](https://gambatracker.com/items/flip-knife-marble-fade-factory-new) | 1 in 25 | $370 370 CSGOBIG\_COIN | 5.0% | 0 | 0.0 | — | | [★ Huntsman Knife \| Tiger Tooth (Factory New) knife · covert](https://gambatracker.com/items/huntsman-knife-tiger-tooth-factory-new) | 1 in 20 | $230 230 CSGOBIG\_COIN | 3.9% | 0 | 0.0 | — | | [★ Moto Gloves \| Polygon (Field-Tested) gloves · extraordinary](https://gambatracker.com/items/moto-gloves-polygon-field-tested) | 1 in 17 | $140 140 CSGOBIG\_COIN | 2.8% | 0 | 0.0 | — | | [StatTrak™ AWP \| Wildfire (Well-Worn) StatTrak · weapon · covert](https://gambatracker.com/items/stattrak-awp-wildfire-well-worn) | 1 in 14 | $75.00 75 CSGOBIG\_COIN | 1.8% | 0 | 0.0 | — | | [StatTrak™ USP-S \| The Traitor (Minimal Wear) StatTrak · weapon · #eb4b4b](https://gambatracker.com/items/stattrak-usp-s-the-traitor-minimal-wear) | 1 in 13 | $43.00 43 CSGOBIG\_COIN | 1.2% | 0 | 0.0 | — | | [AK-47 \| Wasteland Rebel (Well-Worn) weapon · covert](https://gambatracker.com/items/ak-47-wasteland-rebel-well-worn) | 1 in 11 | $25.00 25 CSGOBIG\_COIN | 0.8% | 0 | 0.0 | — | | [StatTrak™ Glock-18 \| Vogue (Factory New) StatTrak · weapon · classified](https://gambatracker.com/items/stattrak-glock-18-vogue-factory-new) | 10.0% | $14.00 14 CSGOBIG\_COIN | 0.5% | 0 | 0.0 | — | | [AK-47 \| Emerald Pinstripe (Factory New) weapon · Mythical](https://gambatracker.com/items/ak-47-emerald-pinstripe-factory-new) | 15.0% | $8.00 8 CSGOBIG\_COIN | 0.4% | 0 | 0.0 | — | | [StatTrak™ AUG \| Ricochet (Factory New) StatTrak · weapon · milspec](https://gambatracker.com/items/stattrak-aug-ricochet-factory-new) | 25.0% | $3.00 3 CSGOBIG\_COIN | 0.3% | 0 | 0.0 | — | 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=359`, 11 Nov, 13:05 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=359) **No drops yet** No drop from this case seen yet. ## Observed RTP over time · daily, 30 days No history yet ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 3 Nov, 04:27 UTC | $330 | 90.00% | 17 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed covert 33.3% legendary 2.8% extraordinary 6.0% #eb4b4b 8.0% classified 10.0% Mythical 15.0% milspec 25.0% 18+ **Case opening is gambling with skins as the currency.** At 90.0% RTP, every $100 put into cases returns $90.00 on average: an expected loss of $10.00 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