---
title: "Duo case on CSGORoll: odds, RTP & drops · gambatracker"
description: "Duo ($23.61) on CSGORoll, a CS2 case site: advertised RTP 90.91% from 22 items with odds, observed 89.35% over 3,485 openings in 30 days."
url: https://gambatracker.com/cases/csgoroll/duo
rendered: 2026-11-11T13:10Z
---

[Case sites](https://gambatracker.com/case-sites) / [CSGORoll](https://gambatracker.com/case-sites/csgoroll) / [Duo](https://gambatracker.com/cases/csgoroll/duo)

# [CSGORoll](https://gambatracker.com/case-sites/csgoroll) · Duo

A case on CSGORoll (csgo, knives, 20%, gloves, pistols), first seen 2 Nov 2026. Every value is CSGORoll's own item price converted from Roll coins at the rate on the site page.

[24h](https://gambatracker.com/cases/csgoroll/duo?window=24h) [7d](https://gambatracker.com/cases/csgoroll/duo?window=7d) [30d](https://gambatracker.com/cases/csgoroll/duo) [All](https://gambatracker.com/cases/csgoroll/duo?window=all)

Price · $23.61 · 33.73 coins

Advertised RTP · 90.91% · EV $21.47 from 22 items

Observed RTP, 30d · 89.35% · 3,485 openings, odds method

Variance · 5.7× · of price², per opening

Tail share · 1 in 19 · of openings carry half the EV

Below price · 82.9% · 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 · 66.65% ±25.95 325 openings

7 days · 87.56% ±8.85 2,808 openings

30 days · 89.35% ±7.95 3,485 openings

since tracking started · 89.35% ±7.95 3,485 openings

40.0% 69.0% 98.0%

## Windows · the test per window

| Window | Openings | Observed | Dev. | Method |
| --- | --- | --- | --- | --- |
| [24h](https://gambatracker.com/cases/csgoroll/duo?window=24h) | 325 | 66.65% ±26.0 | −1.8σ | odds |
| [7d](https://gambatracker.com/cases/csgoroll/duo?window=7d) | 2,808 | 87.56% ±8.85 | −0.7σ | odds |
| [30d](https://gambatracker.com/cases/csgoroll/duo) | 3,485 | 89.35% ±7.95 | −0.4σ | odds |
| [All](https://gambatracker.com/cases/csgoroll/duo?window=all) | 3,485 | 89.35% ±7.95 | −0.4σ | odds |

Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method).

## Items, odds and values · 22 items · odds sum to 1 · observed counts over 3,485 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 |
| --- | --- | --- | --- | --- | --- | --- |
| [★ Sport Gloves \| Slingshot (Minimal Wear) gloves · extraordinary](https://gambatracker.com/items/sport-gloves-slingshot-minimal-wear) | 1 in 4,000 | $676 966 coins | 0.8% | 1 | 0.9 | — |
| [★ StatTrak™ Shadow Daggers \| Doppler (Factory New) (Ruby) StatTrak · knife · covert · Ruby](https://gambatracker.com/items/stattrak-shadow-daggers-doppler-factory-new-ruby) | 1 in 286 | $415 593 coins | 6.8% | 14 | 12.2 | 1.15× |
| [★ Hydra Gloves \| Case Hardened (Factory New) gloves · extraordinary](https://gambatracker.com/items/hydra-gloves-case-hardened-factory-new) | 1 in 571 | $382 546 coins | 3.1% | 6 | 6.1 | 0.98× |
| [★ StatTrak™ Shadow Daggers \| Gamma Doppler (Minimal Wear) (Emerald) StatTrak · knife · covert · Emerald](https://gambatracker.com/items/stattrak-shadow-daggers-gamma-doppler-minimal-wear-emerald) | 1 in 100 | $228 326 coins | 10.6% | 38 | 34.9 | 1.09× |
| [Dual Berettas \| Duelist (Minimal Wear) weapon · restricted](https://gambatracker.com/items/dual-berettas-duelist-minimal-wear) | 1 in 200 | $213 304 coins | 5.0% | 22 | 17.4 | 1.26× |
| [★ StatTrak™ Shadow Daggers \| Doppler (Minimal Wear) (Phase 2) StatTrak · knife · covert · Phase 2](https://gambatracker.com/items/stattrak-shadow-daggers-doppler-minimal-wear-phase-2) | 1 in 83 | $205 293 coins | 11.5% | 36 | 41.8 | 0.86× |
| [★ StatTrak™ Shadow Daggers \| Doppler (Minimal Wear) (Phase 3) StatTrak · knife · covert · Phase 3](https://gambatracker.com/items/stattrak-shadow-daggers-doppler-minimal-wear-phase-3) | 1 in 50 | $177 253 coins | 16.5% | 60 | 69.7 | 0.86× |
| [★ Driver Gloves \| Imperial Plaid (Well-Worn) gloves · extraordinary](https://gambatracker.com/items/driver-gloves-imperial-plaid-well-worn) | 1 in 69 | $122 175 coins | 8.3% | 52 | 50.5 | 1.03× |
| [★ Specialist Gloves \| Forest DDPAT (Battle-Scarred) gloves · extraordinary](https://gambatracker.com/items/specialist-gloves-forest-ddpat-battle-scarred) | 1 in 50 | $102 145 coins | 9.5% | 61 | 69.7 | 0.88× |
| [Souvenir Dual Berettas \| Twin Turbo (Factory New) Souvenir · weapon · classified](https://gambatracker.com/items/souvenir-dual-berettas-twin-turbo-factory-new) | 1 in 74 | $82.60 118 coins | 5.2% | 38 | 47.0 | 0.81× |
| [StatTrak™ Dual Berettas \| Cobra Strike (Field-Tested) StatTrak · weapon · classified](https://gambatracker.com/items/stattrak-dual-berettas-cobra-strike-field-tested) | 1 in 29 | $75.60 108 coins | 12.3% | 125 | 122.0 | 1.02× |
| [★ Driver Gloves \| Queen Jaguar (Battle-Scarred) gloves · extraordinary](https://gambatracker.com/items/driver-gloves-queen-jaguar-battle-scarred) | 1 in 29 | $42.88 61.26 coins | 7.0% | 125 | 122.0 | 1.02× |
| [Souvenir Dual Berettas \| Cobalt Quartz (Factory New) Souvenir · weapon · restricted](https://gambatracker.com/items/souvenir-dual-berettas-cobalt-quartz-factory-new) | 1 in 222 | $21.53 30.75 coins | 0.5% | 18 | 15.7 | 1.15× |
| [Souvenir Dual Berettas \| Stained (Minimal Wear) Souvenir · weapon · industrial](https://gambatracker.com/items/souvenir-dual-berettas-stained-minimal-wear) | 1 in 40 | $7.94 11.35 coins | 0.9% | 72 | 87.1 | 0.83× |
| [Dual Berettas \| Royal Consorts (Well-Worn) weapon · restricted](https://gambatracker.com/items/dual-berettas-royal-consorts-well-worn) | 10.0% | $2.95 4.21 coins | 1.4% | 344 | 348.5 | 0.99× |
| [Dual Berettas \| Shred (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/dual-berettas-shred-battle-scarred) | 10.0% | $0.31 0.44 coins | 0.1% | 358 | 348.5 | 1.03× |
| [Dual Berettas \| Elite 1.6 (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/dual-berettas-elite-1-6-battle-scarred) | 10.0% | $0.30 0.43 coins | 0.1% | 338 | 348.5 | 0.97× |
| [Souvenir Dual Berettas \| Oil Change (Minimal Wear) Souvenir · weapon · consumer](https://gambatracker.com/items/souvenir-dual-berettas-oil-change-minimal-wear) | 10.0% | $0.30 0.43 coins | 0.1% | 363 | 348.5 | 1.04× |
| [Dual Berettas \| Ventilators (Minimal Wear) weapon · mil spec](https://gambatracker.com/items/dual-berettas-ventilators-minimal-wear) | 10.0% | $0.28 0.4 coins | 0.1% | 350 | 348.5 | 1.00× |
| [Dual Berettas \| Dualing Dragons (Well-Worn) weapon · mil spec](https://gambatracker.com/items/dual-berettas-dualing-dragons-well-worn) | 10.0% | $0.24 0.35 coins | 0.1% | 371 | 348.5 | 1.06× |
| [Souvenir Dual Berettas \| Drift Wood (Battle-Scarred) Souvenir · weapon · industrial](https://gambatracker.com/items/souvenir-dual-berettas-drift-wood-battle-scarred) | 10.0% | $0.23 0.33 coins | 0.1% | 359 | 348.5 | 1.03× |
| [Dual Berettas \| Colony (Well-Worn) weapon · consumer](https://gambatracker.com/items/dual-berettas-colony-well-worn) | 10.0% | \<$0.01 0.01 coins | 0.0% | 334 | 348.5 | 0.96× |

Values are CSGORoll'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 `csgoroll:graphql boxes.slots.rate`, 11 Nov, 08:26 UTC.

## Biggest drops · from this case, by value

[★ Sport Gloves | Slingshot (Minimal Wear) gloves · extraordinary](https://gambatracker.com/items/sport-gloves-slingshot-minimal-wear) Hidden $23.61 33.73 coins $676 966 coins 28.64x 2026-11-11 00:35 UTC

## Latest drops · newest first

[All Latest drops →](https://gambatracker.com/drops?casino=csgoroll&case=duo)

[Dual Berettas | Royal Consorts (Well-Worn) weapon · restricted](https://gambatracker.com/items/dual-berettas-royal-consorts-well-worn) Hidden $23.61 33.73 coins $2.95 4.21 coins 0.12x 2026-11-11 12:51 UTC

[Dual Berettas | Ventilators (Minimal Wear) weapon · mil spec](https://gambatracker.com/items/dual-berettas-ventilators-minimal-wear) Hidden $23.61 33.73 coins $0.28 0.4 coins 0.01x 2026-11-11 12:51 UTC

[★ Driver Gloves | Queen Jaguar (Battle-Scarred) gloves · extraordinary](https://gambatracker.com/items/driver-gloves-queen-jaguar-battle-scarred) Hidden $23.61 33.73 coins $42.88 61.26 coins 1.82x 2026-11-11 12:51 UTC

[★ Specialist Gloves | Forest DDPAT (Battle-Scarred) gloves · extraordinary](https://gambatracker.com/items/specialist-gloves-forest-ddpat-battle-scarred) Hidden $23.61 33.73 coins $102 145 coins 4.30x 2026-11-11 12:51 UTC

[Souvenir Dual Berettas | Stained (Minimal Wear) Souvenir · weapon · industrial](https://gambatracker.com/items/souvenir-dual-berettas-stained-minimal-wear) Hidden $23.61 33.73 coins $7.94 11.35 coins 0.34x 2026-11-11 12:51 UTC

[★ Driver Gloves | Queen Jaguar (Battle-Scarred) gloves · extraordinary](https://gambatracker.com/items/driver-gloves-queen-jaguar-battle-scarred) [Relaxa \*](https://gambatracker.com/players/csgoroll/Relaxa%20*-7036790) $23.61 33.73 coins $42.88 61.26 coins 1.82x 2026-11-11 12:51 UTC

[Souvenir Dual Berettas | Drift Wood (Battle-Scarred) Souvenir · weapon · industrial](https://gambatracker.com/items/souvenir-dual-berettas-drift-wood-battle-scarred) Hidden $23.61 33.73 coins $0.23 0.33 coins 0.01x 2026-11-11 12:48 UTC

[Dual Berettas | Shred (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/dual-berettas-shred-battle-scarred) Hidden $23.61 33.73 coins $0.31 0.44 coins 0.01x 2026-11-11 12:48 UTC

[Dual Berettas | Shred (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/dual-berettas-shred-battle-scarred) Hidden $23.61 33.73 coins $0.31 0.44 coins 0.01x 2026-11-11 12:48 UTC

[Dual Berettas | Colony (Well-Worn) weapon · consumer](https://gambatracker.com/items/dual-berettas-colony-well-worn) Hidden $23.61 33.73 coins \<$0.01 0.01 coins 0.00x 2026-11-11 12:48 UTC

## Catalog changes · price, advertised RTP and contents, per capture

| Captured | Price | Advertised | Items |
| --- | --- | --- | --- |
| 9 Nov, 14:08 UTC | $23.61 | 90.91% | 22 |
| 9 Nov, 01:53 UTC | $23.61 | 90.90% | 22 |
| 8 Nov, 23:33 UTC | $23.61 | 90.90% | 22 |
| 8 Nov, 17:30 UTC | $23.67 | 90.90% | 22 |
| 6 Nov, 10:50 UTC | $23.80 | 90.90% | 22 |
| 5 Nov, 22:45 UTC | $23.79 | 90.92% | 22 |
| 3 Nov, 09:32 UTC | $23.79 | 90.92% | 22 |
| 2 Nov, 21:39 UTC | $23.80 | 90.90% | 22 |

Each opening is tested against the capture in force when it happened; a price or odds change starts a new one.

listed extraordinary 7.2% covert 4.5% restricted 10.9% classified 4.9% industrial 12.5% mil spec 40.0% consumer 20.0% best hit $676 (28.64x)

18+

**Case opening is gambling with skins as the currency.** At 90.9% RTP, every $100 put into cases returns $90.91 on average: an expected loss of $9.09 per $100, before any one lucky or unlucky opening. A big drop here says nothing about the next one.

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How these figures are produced and labelled: https://gambatracker.com/llms.txt