--- title: "10% Doppler case on CSGOBig: odds, RTP & drops" description: "10% Doppler ($1,000.00) on CSGOBig, a CS2 case site: advertised RTP 90.00% from 20 items with odds. Independent and free, no sign-up." url: https://gambatracker.com/cases/csgobig/30 rendered: 2026-11-11T13:18Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [10% Doppler](https://gambatracker.com/cases/csgobig/30) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · 10% Doppler 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/30?window=24h) [7d](https://gambatracker.com/cases/csgobig/30?window=7d) [30d](https://gambatracker.com/cases/csgobig/30) [All](https://gambatracker.com/cases/csgobig/30?window=all) Price · $1,000.00 · 1,000 CSGOBIG\_COIN Advertised RTP · 90.00% · EV $900.00 from 20 items Observed RTP, 30d · — · no counted openings Variance · 6.8× · of price², per opening Tail share · 1 in 25 · of openings carry half the EV Below price · 90.0% · 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/30?window=24h) | 0 | — | — | — | | [7d](https://gambatracker.com/cases/csgobig/30?window=7d) | 0 | — | — | — | | [30d](https://gambatracker.com/cases/csgobig/30) | 0 | — | — | — | | [All](https://gambatracker.com/cases/csgobig/30?window=all) | 0 | — | — | — | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 20 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 | | --- | --- | --- | --- | --- | --- | --- | | [★ Butterfly Knife \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/butterfly-knife-gamma-doppler-factory-new-emerald) | 1 in 100 | $13.4K 13,420 CSGOBIG\_COIN | 14.9% | 0 | 0.0 | — | | [★ StatTrak™ Butterfly Knife \| Doppler (Minimal Wear) (Sapphire) StatTrak · knife · #EB4B4B · Sapphire](https://gambatracker.com/items/stattrak-butterfly-knife-doppler-minimal-wear-sapphire) | 1 in 100 | $13.1K 13,131 CSGOBIG\_COIN | 14.6% | 0 | 0.0 | — | | [★ M9 Bayonet \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/m9-bayonet-doppler-factory-new-sapphire) | 1 in 100 | $10.3K 10,332 CSGOBIG\_COIN | 11.5% | 0 | 0.0 | — | | [★ M9 Bayonet \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/m9-bayonet-gamma-doppler-factory-new-emerald) | 1 in 100 | $8,932 8,932 CSGOBIG\_COIN | 9.9% | 0 | 0.0 | — | | [★ Karambit \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/karambit-doppler-factory-new-sapphire) | 1 in 100 | $8,800 8,800 CSGOBIG\_COIN | 9.8% | 0 | 0.0 | — | | [★ Karambit \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/karambit-gamma-doppler-factory-new-emerald) | 1 in 100 | $7,967 7,967 CSGOBIG\_COIN | 8.9% | 0 | 0.0 | — | | [★ Karambit \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/karambit-doppler-factory-new-ruby) | 1 in 100 | $5,800 5,800 CSGOBIG\_COIN | 6.4% | 0 | 0.0 | — | | [★ StatTrak™ Karambit \| Doppler (Factory New) (Black Pearl) StatTrak · knife · #EB4B4B · Black Pearl](https://gambatracker.com/items/stattrak-karambit-doppler-factory-new-black-pearl) | 1 in 100 | $4,400 4,400 CSGOBIG\_COIN | 4.9% | 0 | 0.0 | — | | [★ StatTrak™ Butterfly Knife \| Doppler (Factory New) (Black Pearl) StatTrak · knife · covert · Black Pearl](https://gambatracker.com/items/stattrak-butterfly-knife-doppler-factory-new-black-pearl) | 1 in 100 | $4,200 4,200 CSGOBIG\_COIN | 4.7% | 0 | 0.0 | — | | [★ Ursus Knife \| Doppler (Factory New) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/ursus-knife-doppler-factory-new-sapphire) | 1 in 100 | $2,080 2,080 CSGOBIG\_COIN | 2.3% | 0 | 0.0 | — | | [★ M9 Bayonet \| Urban Masked (Field-Tested) knife · knifes](https://gambatracker.com/items/m9-bayonet-urban-masked-field-tested) | 1 in 12 | $374 374 CSGOBIG\_COIN | 3.4% | 0 | 0.0 | — | | [★ Classic Knife \| Crimson Web (Minimal Wear) knife · covert](https://gambatracker.com/items/classic-knife-crimson-web-minimal-wear) | 1 in 10 | $331 331 CSGOBIG\_COIN | 3.6% | 0 | 0.0 | — | | [★ Huntsman Knife \| Lore (Field-Tested) knife · covert](https://gambatracker.com/items/huntsman-knife-lore-field-tested) | 16.3% | $237 237 CSGOBIG\_COIN | 4.3% | 0 | 0.0 | — | | [StatTrak™ M4A1-S \| Player Two (Field-Tested) StatTrak · weapon · covert](https://gambatracker.com/items/stattrak-m4a1-s-player-two-field-tested) | 14.7% | $42.95 42.95 CSGOBIG\_COIN | 0.7% | 0 | 0.0 | — | | [AK-47 \| Blue Laminate (Well-Worn) weapon · restricted](https://gambatracker.com/items/ak-47-blue-laminate-well-worn) | 1 in 15 | $9.55 9.55 CSGOBIG\_COIN | 0.1% | 0 | 0.0 | — | | [Tec-9 \| Fuel Injector (Battle-Scarred) weapon · classified](https://gambatracker.com/items/tec-9-fuel-injector-battle-scarred) | 1 in 30 | $2.31 2.31 CSGOBIG\_COIN | 0.0% | 0 | 0.0 | — | | [Sticker \| Welcome to the Clutch sticker · high](https://gambatracker.com/items/sticker-welcome-to-the-clutch) | 13.1% | $2.22 2.22 CSGOBIG\_COIN | 0.0% | 0 | 0.0 | — | | [P250 \| Wingshot (Well-Worn) weapon · violet](https://gambatracker.com/items/p250-wingshot-well-worn) | 1 in 20 | $1.49 1.49 CSGOBIG\_COIN | 0.0% | 0 | 0.0 | — | | [StatTrak™ SCAR-20 \| Outbreak (Minimal Wear) StatTrak · weapon · milspec](https://gambatracker.com/items/stattrak-scar-20-outbreak-minimal-wear) | 11.4% | $0.61 0.61 CSGOBIG\_COIN | 0.0% | 0 | 0.0 | — | | [Desert Eagle \| Directive (Well-Worn) weapon · violet](https://gambatracker.com/items/desert-eagle-directive-well-worn) | 1 in 60 | $0.42 0.42 CSGOBIG\_COIN | 0.0% | 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=30`, 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=30) **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 | $1,000 | 90.00% | 20 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed covert 48.9% #EB4B4B 2.0% knifes 8.2% restricted 6.6% classified 3.3% high 13.1% violet 6.6% milspec 11.4% 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