--- title: "Chemistry case on Rain.gg: odds, RTP & drops · gambatracker" description: "Chemistry ($12.76) on Rain.gg, a CS2 case site: no published odds, observed 94.01% over 8,945 openings in 30 days. Independent and free, no sign-up." url: https://gambatracker.com/cases/rain/chemistry rendered: 2026-11-11T13:11Z --- [Case sites](https://gambatracker.com/case-sites) / [Rain.gg](https://gambatracker.com/case-sites/rain) / [Chemistry](https://gambatracker.com/cases/rain/chemistry) # [Rain.gg](https://gambatracker.com/case-sites/rain) · Chemistry A case on Rain.gg, first seen 2 Nov 2026. Every value is Rain.gg's own item price converted from Rain coins at the rate on the site page. [24h](https://gambatracker.com/cases/rain/chemistry?window=24h) [7d](https://gambatracker.com/cases/rain/chemistry?window=7d) [30d](https://gambatracker.com/cases/rain/chemistry) [All](https://gambatracker.com/cases/rain/chemistry?window=all) Price · $12.76 · 18.23 coins Advertised RTP · — · no catalog Observed RTP, 30d · 94.01% · 8,945 openings, sample method Variance · — · needs odds Tail share · — · needs odds Below price · — · needs odds ## Advertised vs observed · per window, 95% band and the advertised marker observed, 95% band outside band small sample 24 hours · 74.78% ±21.68 1,274 openings 7 days · 94.52% ±11.06 7,540 openings 30 days · 94.01% ±9.97 8,945 openings since tracking started · 94.01% ±9.97 8,945 openings 52.5% 79.3% 106.0% ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/rain/chemistry?window=24h) | 1,274 | 74.78% ±21.7 | — | sample | | [7d](https://gambatracker.com/cases/rain/chemistry?window=7d) | 7,540 | 94.52% ±11.1 | — | sample | | [30d](https://gambatracker.com/cases/rain/chemistry) | 8,945 | 94.01% ±9.97 | — | sample | | [All](https://gambatracker.com/cases/rain/chemistry?window=all) | 8,945 | 94.01% ±9.97 | — | sample | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · none published **No catalog** Rain.gg publishes no catalog; the case is known from the drops that named it. Values are Rain.gg'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. ## Biggest drops · from this case, by value [★ StatTrak™ Flip Knife | Gamma Doppler (Minimal Wear) StatTrak · knife · Covert](https://gambatracker.com/items/stattrak-flip-knife-gamma-doppler-minimal-wear) Hidden $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-10 19:05 UTC [★ StatTrak™ Flip Knife | Doppler (Minimal Wear) (Phase 4) StatTrak · knife · Covert · Phase 4](https://gambatracker.com/items/stattrak-flip-knife-doppler-minimal-wear-phase-4) [Halacska51#TeamFilip](https://gambatracker.com/players/rain/Halacska51%23TeamFilip) $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-10 08:44 UTC [★ StatTrak™ Flip Knife | Gamma Doppler (Minimal Wear) StatTrak · knife · Covert](https://gambatracker.com/items/stattrak-flip-knife-gamma-doppler-minimal-wear) [Loula](https://gambatracker.com/players/rain/Loula) $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-10 00:46 UTC [★ StatTrak™ Flip Knife | Gamma Doppler (Minimal Wear) StatTrak · knife · Covert](https://gambatracker.com/items/stattrak-flip-knife-gamma-doppler-minimal-wear) Hidden $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-10 00:04 UTC [★ StatTrak™ Flip Knife | Doppler (Minimal Wear) (Phase 4) StatTrak · knife · Covert · Phase 4](https://gambatracker.com/items/stattrak-flip-knife-doppler-minimal-wear-phase-4) Hidden $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-09 19:46 UTC [★ StatTrak™ Flip Knife | Doppler (Minimal Wear) (Phase 4) StatTrak · knife · Covert · Phase 4](https://gambatracker.com/items/stattrak-flip-knife-doppler-minimal-wear-phase-4) [MadBro ⚡](https://gambatracker.com/players/rain/MadBro%20%E2%9A%A1) $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-09 09:37 UTC [★ StatTrak™ Flip Knife | Doppler (Minimal Wear) (Phase 4) StatTrak · knife · Covert · Phase 4](https://gambatracker.com/items/stattrak-flip-knife-doppler-minimal-wear-phase-4) [eric cartman69](https://gambatracker.com/players/rain/eric%20cartman69) $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-08 08:34 UTC [★ StatTrak™ Flip Knife | Doppler (Minimal Wear) (Phase 4) StatTrak · knife · Covert · Phase 4](https://gambatracker.com/items/stattrak-flip-knife-doppler-minimal-wear-phase-4) Hidden $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-08 06:36 UTC [★ StatTrak™ Flip Knife | Doppler (Minimal Wear) (Phase 4) StatTrak · knife · Covert · Phase 4](https://gambatracker.com/items/stattrak-flip-knife-doppler-minimal-wear-phase-4) Hidden $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-06 21:54 UTC [★ StatTrak™ Flip Knife | Gamma Doppler (Minimal Wear) StatTrak · knife · Covert](https://gambatracker.com/items/stattrak-flip-knife-gamma-doppler-minimal-wear) Hidden $12.76 18.23 coins $774 1,106 coins 60.66x 2026-11-06 15:37 UTC ## Latest drops · newest first [All Latest drops →](https://gambatracker.com/drops?casino=rain&case=chemistry) [FAMAS | Meltdown (Field-Tested) weapon · classified](https://gambatracker.com/items/famas-meltdown-field-tested) Hidden $12.76 18.23 coins $38.90 55.57 coins 3.05x 2026-11-11 12:44 UTC [Souvenir Tec-9 | Toxic (Battle-Scarred) Souvenir · weapon · Mil Spec Grade](https://gambatracker.com/items/souvenir-tec-9-toxic-battle-scarred) Hidden $12.76 18.23 coins $12.03 17.18 coins 0.94x 2026-11-11 12:44 UTC [SCAR-20 | Outbreak (Factory New) weapon · mil spec](https://gambatracker.com/items/scar-20-outbreak-factory-new) Hidden $12.76 18.23 coins $0.50 0.71 coins 0.04x 2026-11-11 12:44 UTC [SCAR-20 | Outbreak (Factory New) weapon · mil spec](https://gambatracker.com/items/scar-20-outbreak-factory-new) Hidden $12.76 18.23 coins $0.50 0.71 coins 0.04x 2026-11-11 12:44 UTC [SCAR-20 | Outbreak (Factory New) weapon · mil spec](https://gambatracker.com/items/scar-20-outbreak-factory-new) Hidden $12.76 18.23 coins $0.50 0.71 coins 0.04x 2026-11-11 12:44 UTC [SCAR-20 | Outbreak (Factory New) weapon · mil spec](https://gambatracker.com/items/scar-20-outbreak-factory-new) Hidden $12.76 18.23 coins $0.50 0.71 coins 0.04x 2026-11-11 12:44 UTC [StatTrak™ USP-S | Serum (Factory New) StatTrak · weapon · classified](https://gambatracker.com/items/stattrak-usp-s-serum-factory-new) Hidden $12.76 18.23 coins $63.83 91.18 coins 5.00x 2026-11-11 12:44 UTC [SG 553 | Fallout Warning (Field-Tested) weapon · light blue](https://gambatracker.com/items/sg-553-fallout-warning-field-tested) Hidden $12.76 18.23 coins $1.41 2.02 coins 0.11x 2026-11-11 12:44 UTC [SCAR-20 | Outbreak (Factory New) weapon · mil spec](https://gambatracker.com/items/scar-20-outbreak-factory-new) Hidden $12.76 18.23 coins $0.50 0.71 coins 0.04x 2026-11-11 12:44 UTC [SCAR-20 | Outbreak (Factory New) weapon · mil spec](https://gambatracker.com/items/scar-20-outbreak-factory-new) Hidden $12.76 18.23 coins $0.50 0.71 coins 0.04x 2026-11-11 12:44 UTC ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed best hit $774 (60.66x) 18+ **Case opening is gambling with skins as the currency.** At 94.0% RTP, every $100 put into cases returns $94.01 on average: an expected loss of $5.99 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