--- title: "Onii case on CSGOBig: odds, RTP & drops · gambatracker" description: "Onii ($2,600.00) on CSGOBig, a CS2 case site: advertised RTP 87.60% from 20 items with odds. Item values at the site’s own prices, biggest and latest drops." url: https://gambatracker.com/cases/csgobig/1237 rendered: 2026-11-11T13:17Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [Onii](https://gambatracker.com/cases/csgobig/1237) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · Onii 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/1237?window=24h) [7d](https://gambatracker.com/cases/csgobig/1237?window=7d) [30d](https://gambatracker.com/cases/csgobig/1237) [All](https://gambatracker.com/cases/csgobig/1237?window=all) Price · $2,600.00 · 2,600 CSGOBIG\_COIN Advertised RTP · 87.60% · EV $2,277.51 from 20 items Observed RTP, 30d · — · no counted openings Variance · 30.4× · of price², per opening Tail share · 1 in 53 · of openings carry half the EV Below price · 81.6% · 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/1237?window=24h) | 0 | — | — | — | | [7d](https://gambatracker.com/cases/csgobig/1237?window=7d) | 0 | — | — | — | | [30d](https://gambatracker.com/cases/csgobig/1237) | 0 | — | — | — | | [All](https://gambatracker.com/cases/csgobig/1237?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 | | --- | --- | --- | --- | --- | --- | --- | | [AK-47 \| Case Hardened - 4x Titan (Factory New) weapon · #D9A859](https://gambatracker.com/items/ak-47-case-hardened-4x-titan-factory-new) | 1 in 2,000 | $400K 400,000 CSGOBIG\_COIN | 8.8% | 0 | 0.0 | — | | [★ Karambit \| Case Hardened (Field Tested) - Pattern 387 knife · #EB4B4B](https://gambatracker.com/items/karambit-case-hardened-field-tested-pattern-387) | 1 in 1,000 | $250K 250,000 CSGOBIG\_COIN | 11.0% | 0 | 0.0 | — | | [M4A4 \| Howl - 4x IBP (Factory New) weapon · #E4AE39](https://gambatracker.com/items/m4a4-howl-4x-ibp-factory-new) | 1 in 667 | $150K 150,000 CSGOBIG\_COIN | 9.9% | 0 | 0.0 | — | | [AK-47 \| Wild Lotus - 4x IBP (Factory New) weapon · #EB4B4B](https://gambatracker.com/items/ak-47-wild-lotus-4x-ibp-factory-new) | 1 in 500 | $100K 100,000 CSGOBIG\_COIN | 8.8% | 0 | 0.0 | — | | [Sticker \| Reason Gaming (Holo) \| Katowice 2014 sticker · remarkable](https://gambatracker.com/items/sticker-reason-gaming-holo-katowice-2014) | 1 in 1,000 | $75K 75,000 CSGOBIG\_COIN | 3.3% | 0 | 0.0 | — | | [★ Sport Gloves \| Hedge Maze (Factory New) gloves · extraordinary](https://gambatracker.com/items/sport-gloves-hedge-maze-factory-new) | 1 in 500 | $36.2K 36,200 CSGOBIG\_COIN | 3.2% | 0 | 0.0 | — | | [Sticker \| Team LDLC.com (Holo) \| Katowice 2014 sticker · remarkable](https://gambatracker.com/items/sticker-team-ldlc-com-holo-katowice-2014) | 1 in 333 | $22.9K 22,900 CSGOBIG\_COIN | 3.0% | 0 | 0.0 | — | | [M4A4 \| Howl (Factory New) weapon · contraband](https://gambatracker.com/items/m4a4-howl-factory-new) | 1 in 333 | $15K 15,000 CSGOBIG\_COIN | 2.0% | 0 | 0.0 | — | | [AWP \| Dragon Lore (Factory New) weapon · covert](https://gambatracker.com/items/awp-dragon-lore-factory-new) | 1 in 200 | $11.6K 11,600 CSGOBIG\_COIN | 2.5% | 0 | 0.0 | — | | [★ Specialist Gloves \| Crimson Kimono (Factory New) gloves · extraordinary](https://gambatracker.com/items/specialist-gloves-crimson-kimono-factory-new) | 1 in 200 | $8,650 8,650 CSGOBIG\_COIN | 1.9% | 0 | 0.0 | — | | [★ Butterfly Knife \| Gamma Doppler (Factory New) (Emerald) knife · covert · Emerald](https://gambatracker.com/items/butterfly-knife-gamma-doppler-factory-new-emerald) | 1 in 100 | $7,635 7,635 CSGOBIG\_COIN | 3.4% | 0 | 0.0 | — | | [AWP \| Medusa (Factory New) weapon · covert](https://gambatracker.com/items/awp-medusa-factory-new) | 1 in 50 | $4,400 4,400 CSGOBIG\_COIN | 3.9% | 0 | 0.0 | — | | [★ Sport Gloves \| Pandora's Box (Field-Tested) gloves · legendary](https://gambatracker.com/items/sport-gloves-pandoras-box-field-tested) | 1 in 20 | $3,500 3,500 CSGOBIG\_COIN | 7.7% | 0 | 0.0 | — | | [★ Bayonet \| Doppler (Factory New) (Black Pearl) knife · covert · Black Pearl](https://gambatracker.com/items/bayonet-doppler-factory-new-black-pearl) | 1 in 13 | $2,760 2,760 CSGOBIG\_COIN | 9.7% | 0 | 0.0 | — | | [★ Bayonet \| Doppler (Minimal Wear) (Sapphire) knife · covert · Sapphire](https://gambatracker.com/items/bayonet-doppler-minimal-wear-sapphire) | 1 in 13 | $1,430 1,430 CSGOBIG\_COIN | 5.0% | 0 | 0.0 | — | | [AWP \| Fade (Factory New) weapon · covert](https://gambatracker.com/items/awp-fade-factory-new) | 10.0% | $970 970 CSGOBIG\_COIN | 4.3% | 0 | 0.0 | — | | [★ M9 Bayonet \| Marble Fade (Minimal Wear) knife · covert](https://gambatracker.com/items/m9-bayonet-marble-fade-minimal-wear) | 11.0% | $765 765 CSGOBIG\_COIN | 3.7% | 0 | 0.0 | — | | [AK-47 \| Vulcan (Factory New) weapon · covert](https://gambatracker.com/items/ak-47-vulcan-factory-new) | 13.0% | $535 535 CSGOBIG\_COIN | 3.1% | 0 | 0.0 | — | | [★ Bayonet \| Doppler (Factory New) knife · sunny](https://gambatracker.com/items/bayonet-doppler-factory-new) | 19.0% | $350 350 CSGOBIG\_COIN | 2.9% | 0 | 0.0 | — | | [★ Navaja Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/navaja-knife-doppler-factory-new-ruby) | 20.6% | $235 235 CSGOBIG\_COIN | 2.1% | 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=1237`, 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=1237) **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 | $2,600 | 87.60% | 20 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed #D9A859 0.1% #EB4B4B 0.3% #E4AE39 0.1% remarkable 0.4% extraordinary 0.7% contraband 0.3% covert 74.1% legendary 5.0% sunny 19.0% 18+ **Case opening is gambling with skins as the currency.** At 87.6% RTP, every $100 put into cases returns $87.60 on average: an expected loss of $12.40 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