--- title: "5% Ruby case on CSGOBig: odds, RTP & drops · gambatracker" description: "5% Ruby ($207.00) on CSGOBig, a CS2 case site: advertised RTP 90.00% from 11 items with odds, observed 537.67% over 9 openings in 30 days." url: https://gambatracker.com/cases/csgobig/291 rendered: 2026-11-11T12:45Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [5% Ruby](https://gambatracker.com/cases/csgobig/291) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · 5% Ruby 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/291?window=24h) [7d](https://gambatracker.com/cases/csgobig/291?window=7d) [30d](https://gambatracker.com/cases/csgobig/291) [All](https://gambatracker.com/cases/csgobig/291?window=all) Price · $207.00 · 207 CSGOBIG\_COIN Advertised RTP · 90.00% · EV $186.30 from 11 items Observed RTP, 30d · 537.67% · 9 openings, odds method Variance · 26.4× · of price², per opening Tail share · 1 in 67 · of openings carry half the EV Below price · 95.0% · 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 · 6 openings · below min 7 days · 9 openings · below min 30 days · 9 openings · below min since tracking started · 9 openings · below min 89.5% 653.8% 1218.0% **Small sample.** 9 openings and 0.1 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/291?window=24h) | 6 | 806.00% ±411.3 | — | odds | | [7d](https://gambatracker.com/cases/csgobig/291?window=7d) | 9 | 537.67% ±335.8 | — | odds | | [30d](https://gambatracker.com/cases/csgobig/291) | 9 | 537.67% ±335.8 | — | odds | | [All](https://gambatracker.com/cases/csgobig/291?window=all) | 9 | 537.67% ±335.8 | — | odds | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 11 items · odds sum to 1 · observed counts over 9 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 \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/butterfly-knife-doppler-factory-new-ruby) | 1 in 200 | $10K 10,000 CSGOBIG\_COIN | 26.8% | 1 | 0.0 | — | | [★ M9 Bayonet \| Doppler (Minimal Wear) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/m9-bayonet-doppler-minimal-wear-ruby) | 1 in 200 | $8,000 8,000 CSGOBIG\_COIN | 21.5% | 0 | 0.0 | — | | [★ Karambit \| Doppler (Minimal Wear) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/karambit-doppler-minimal-wear-ruby) | 1 in 200 | $6,000 6,000 CSGOBIG\_COIN | 16.1% | 0 | 0.0 | — | | [★ Bayonet \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/bayonet-doppler-factory-new-ruby) | 1 in 200 | $4,000 4,000 CSGOBIG\_COIN | 10.7% | 0 | 0.0 | — | | [★ Stiletto Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/stiletto-knife-doppler-factory-new-ruby) | 1 in 200 | $3,000 3,000 CSGOBIG\_COIN | 8.1% | 0 | 0.0 | — | | [★ Ursus Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/ursus-knife-doppler-factory-new-ruby) | 1 in 200 | $2,000 2,000 CSGOBIG\_COIN | 5.4% | 0 | 0.0 | — | | [★ Huntsman Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/huntsman-knife-doppler-factory-new-ruby) | 1 in 200 | $1,600 1,600 CSGOBIG\_COIN | 4.3% | 0 | 0.0 | — | | [★ Falchion Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/falchion-knife-doppler-factory-new-ruby) | 1 in 200 | $1,000 1,000 CSGOBIG\_COIN | 2.7% | 0 | 0.0 | — | | [★ Gut Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/gut-knife-doppler-factory-new-ruby) | 1 in 200 | $760 760 CSGOBIG\_COIN | 2.0% | 0 | 0.0 | — | | [★ Navaja Knife \| Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/navaja-knife-doppler-factory-new-ruby) | 1 in 200 | $500 500 CSGOBIG\_COIN | 1.3% | 0 | 0.0 | — | | [MP9 \| Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) | 95.0% | $2.10 2.1 CSGOBIG\_COIN | 1.1% | 8 | 8.5 | 0.94× | 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=291`, 11 Nov, 06:29 UTC. ## Biggest drops · from this case, by value [★ Butterfly Knife | Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/butterfly-knife-doppler-factory-new-ruby) Hidden $207 207 CSGOBIG\_COIN $10K 10,000 CSGOBIG\_COIN 48.31x 2026-11-10 20:39 UTC ## Latest drops · newest first [All Latest drops →](https://gambatracker.com/drops?casino=csgobig&case=291) [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 20:39 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 20:39 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 20:39 UTC [★ Butterfly Knife | Doppler (Factory New) (Ruby) knife · covert · Ruby](https://gambatracker.com/items/butterfly-knife-doppler-factory-new-ruby) Hidden $207 207 CSGOBIG\_COIN $10K 10,000 CSGOBIG\_COIN 48.31x 2026-11-10 20:39 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) [Headed](https://gambatracker.com/players/csgobig/Headed) $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 20:39 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 20:39 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 07:09 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 07:09 UTC [MP9 | Ruby Poison Dart (Factory New) weapon · restricted](https://gambatracker.com/items/mp9-ruby-poison-dart-factory-new) Hidden $207 207 CSGOBIG\_COIN $2.10 2.1 CSGOBIG\_COIN 0.01x 2026-11-10 07:09 UTC ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 3 Nov, 04:27 UTC | $207 | 90.00% | 11 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed covert 5.0% restricted 95.0% best hit $10K (48.31x) 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