---
title: "Quarter Pumper case on Chicken.gg: odds, RTP & drops"
description: "Quarter Pumper ($0.13) on Chicken.gg, a CS2 case site: advertised RTP 89.36% from 24 items with odds, observed 83.34% over 6,051 openings in 30 days."
url: https://gambatracker.com/cases/chicken/quarter-pumper
rendered: 2026-11-11T21:07Z
---

[Case sites](https://gambatracker.com/case-sites) / [Chicken.gg](https://gambatracker.com/case-sites/chicken) / [Quarter Pumper](https://gambatracker.com/cases/chicken/quarter-pumper)

# [Chicken.gg](https://gambatracker.com/case-sites/chicken) · Quarter Pumper

A case on Chicken.gg (official), first seen 2 Nov 2026. Every value is Chicken.gg's own item price converted from Chicken coins at the rate on the site page.

[24h](https://gambatracker.com/cases/chicken/quarter-pumper?window=24h) [7d](https://gambatracker.com/cases/chicken/quarter-pumper?window=7d) [30d](https://gambatracker.com/cases/chicken/quarter-pumper) [All](https://gambatracker.com/cases/chicken/quarter-pumper?window=all)

Price · $0.13 · 0.26 coins

Advertised RTP · 89.36% · EV $0.12 from 24 items

Observed RTP, 30d · 83.34% · 6,051 openings, odds method

Variance · 22.4× · of price², per opening

Tail share · 30.0% · of openings carry half the EV

Below price · 45.0% · 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 · 76.83% ±35.34 689 openings

7 days · 84.20% ±12.88 5,185 openings

30 days · 83.34% ±11.93 6,051 openings

since tracking started · 83.34% ±11.93 6,051 openings

41.0% 77.0% 113.0%

## Windows · the test per window

| Window | Openings | Observed | Dev. | Method |
| --- | --- | --- | --- | --- |
| [24h](https://gambatracker.com/cases/chicken/quarter-pumper?window=24h) | 689 | 76.83% ±35.3 | −0.7σ | odds |
| [7d](https://gambatracker.com/cases/chicken/quarter-pumper?window=7d) | 5,185 | 84.20% ±12.9 | −0.8σ | odds |
| [30d](https://gambatracker.com/cases/chicken/quarter-pumper) | 6,051 | 83.34% ±11.9 | −1.0σ | odds |
| [All](https://gambatracker.com/cases/chicken/quarter-pumper?window=all) | 6,051 | 83.34% ±11.9 | −1.0σ | odds |

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

## Items, odds and values · 24 items · odds sum to 1 · observed counts over 6,059 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 |
| --- | --- | --- | --- | --- | --- | --- |
| [Glock-18 \| Pink DDPAT (Factory New) weapon · restricted](https://gambatracker.com/items/glock-18-pink-ddpat-factory-new) | 1 in 25,000 | $56.28 113 coins | 1.9% | 0 | 0.2 | — |
| [Dual Berettas \| Cobra Strike (Factory New) weapon · classified](https://gambatracker.com/items/dual-berettas-cobra-strike-factory-new) | 1 in 16,667 | $39.30 78.6 coins | 2.0% | 0 | 0.4 | — |
| [Dual Berettas \| Emerald (Factory New) weapon · mil spec](https://gambatracker.com/items/dual-berettas-emerald-factory-new) | 1 in 10,000 | $22.69 45.37 coins | 2.0% | 1 | 0.6 | — |
| [Dual Berettas \| Pyre (Factory New) weapon · industrial](https://gambatracker.com/items/dual-berettas-pyre-factory-new) | 1 in 10,000 | $20.37 40.73 coins | 1.8% | 0 | 0.6 | — |
| [Dual Berettas \| Marina (Factory New) weapon · restricted](https://gambatracker.com/items/dual-berettas-marina-factory-new) | 1 in 6,667 | $14.33 28.65 coins | 1.8% | 0 | 0.9 | — |
| [Dual Berettas \| Black Limba (Factory New) weapon · blue](https://gambatracker.com/items/dual-berettas-black-limba-factory-new) | 1 in 6,667 | $10.34 20.68 coins | 1.3% | 1 | 0.9 | — |
| [Dual Berettas \| Hemoglobin (Factory New) weapon · restricted](https://gambatracker.com/items/dual-berettas-hemoglobin-factory-new) | 1 in 5,000 | $6.75 13.49 coins | 1.2% | 0 | 1.2 | 0.00× |
| [Dual Berettas \| Melondrama (Factory New) weapon · Legendary](https://gambatracker.com/items/dual-berettas-melondrama-factory-new) | 1 in 5,000 | $5.50 10.99 coins | 0.9% | 2 | 1.2 | 1.65× |
| [XM1014 \| Zombie Offensive (Factory New) weapon · violet](https://gambatracker.com/items/xm1014-zombie-offensive-factory-new) | 1 in 250 | $0.61 1.23 coins | 2.1% | 28 | 24.2 | 1.16× |
| [Sawed-Off \| Brake Light (Factory New) weapon · blue](https://gambatracker.com/items/sawed-off-brake-light-factory-new) | 1 in 200 | $0.57 1.14 coins | 2.5% | 24 | 30.3 | 0.79× |
| [Sawed-Off \| Amber Fade (Factory New) weapon · 1](https://gambatracker.com/items/sawed-off-amber-fade-factory-new) | 1 in 100 | $0.41 0.82 coins | 3.5% | 56 | 60.6 | 0.92× |
| [Sawed-Off \| Clay Ambush (Factory New) weapon · Common](https://gambatracker.com/items/sawed-off-clay-ambush-factory-new) | 1 in 100 | $0.34 0.68 coins | 2.9% | 68 | 60.6 | 1.12× |
| [Sawed-Off \| Yorick (Factory New) weapon · #4b69ff](https://gambatracker.com/items/sawed-off-yorick-factory-new) | 1 in 100 | $0.26 0.52 coins | 2.2% | 63 | 60.6 | 1.04× |
| [Sawed-Off \| Zander (Factory New) weapon · mil spec](https://gambatracker.com/items/sawed-off-zander-factory-new) | 1 in 100 | $0.22 0.44 coins | 1.9% | 57 | 60.6 | 0.94× |
| [Sawed-Off \| Snake Camo (Factory New) weapon · Industrial Grade](https://gambatracker.com/items/sawed-off-snake-camo-factory-new) | 25.0% | $0.15 0.31 coins | 33.4% | 1,522 | 1514.7 | 1.00× |
| [Sawed-Off \| Spirit Board (Factory New) weapon · Rare](https://gambatracker.com/items/sawed-off-spirit-board-factory-new) | 25.0% | $0.13 0.26 coins | 28.0% | 1,520 | 1514.7 | 1.00× |
| [MP9 \| Bioleak (Field-Tested) weapon · milspec](https://gambatracker.com/items/mp9-bioleak-field-tested) | 1 in 20 | $0.06 0.12 coins | 2.6% | 278 | 302.9 | 0.92× |
| [MP9 \| Sand Dashed (Field-Tested) weapon · consumer](https://gambatracker.com/items/mp9-sand-dashed-field-tested) | 1 in 20 | $0.04 0.09 coins | 1.9% | 316 | 302.9 | 1.04× |
| [MP9 \| Slide (Factory New) weapon · Common](https://gambatracker.com/items/mp9-slide-factory-new) | 1 in 20 | $0.04 0.07 coins | 1.5% | 280 | 302.9 | 0.92× |
| [MP9 \| Orange Peel (Field-Tested) weapon · industrial](https://gambatracker.com/items/mp9-orange-peel-field-tested) | 10.0% | $0.03 0.05 coins | 2.2% | 599 | 605.9 | 0.99× |
| [MP9 \| Modest Threat (Field-Tested) weapon · mil spec](https://gambatracker.com/items/mp9-modest-threat-field-tested) | 1 in 20 | $0.02 0.04 coins | 0.9% | 335 | 302.9 | 1.11× |
| [MP9 \| Slide (Field-Tested) weapon · consumer](https://gambatracker.com/items/mp9-slide-field-tested) | 1 in 20 | $0.02 0.04 coins | 0.9% | 282 | 302.9 | 0.93× |
| [MP9 \| Featherweight (Field-Tested) weapon · milspec](https://gambatracker.com/items/mp9-featherweight-field-tested) | 1 in 20 | $0.01 0.02 coins | 0.4% | 328 | 302.9 | 1.08× |
| [MP9 \| Black Sand (Field-Tested) weapon · milspec](https://gambatracker.com/items/mp9-black-sand-field-tested) | 1 in 20 | \<$0.01 0.01 coins | 0.2% | 299 | 302.9 | 0.99× |

Values are Chicken.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. Odds read from `chicken:cases/get-cases`, 11 Nov, 20:05 UTC.

## Biggest drops · from this case, by value

[Dual Berettas | Emerald (Factory New) weapon · mil spec](https://gambatracker.com/items/dual-berettas-emerald-factory-new) Hidden $0.13 0.26 coins $22.69 45.37 coins 174.5x 2026-11-04 23:18 UTC

[Dual Berettas | Black Limba (Factory New) weapon · blue](https://gambatracker.com/items/dual-berettas-black-limba-factory-new) Hidden $0.13 0.26 coins $10.34 20.68 coins 79.54x 2026-11-05 18:11 UTC

## Latest drops · newest first

[All Latest drops →](https://gambatracker.com/drops?casino=chicken&case=quarter-pumper)

[Sawed-Off | Snake Camo (Factory New) weapon · Industrial Grade](https://gambatracker.com/items/sawed-off-snake-camo-factory-new) Hidden $0.13 0.26 coins $0.15 0.31 coins 1.19x 2026-11-11 21:07 UTC

[Sawed-Off | Snake Camo (Factory New) weapon · Industrial Grade](https://gambatracker.com/items/sawed-off-snake-camo-factory-new) Hidden $0.13 0.26 coins $0.15 0.31 coins 1.19x 2026-11-11 21:07 UTC

[Sawed-Off | Spirit Board (Factory New) weapon · Rare](https://gambatracker.com/items/sawed-off-spirit-board-factory-new) Hidden $0.13 0.26 coins $0.13 0.26 coins 1.00x 2026-11-11 21:07 UTC

[Sawed-Off | Snake Camo (Factory New) weapon · Industrial Grade](https://gambatracker.com/items/sawed-off-snake-camo-factory-new) Hidden $0.13 0.26 coins $0.15 0.31 coins 1.19x 2026-11-11 21:07 UTC

[MP9 | Featherweight (Field-Tested) weapon · milspec](https://gambatracker.com/items/mp9-featherweight-field-tested) Hidden $0.13 0.26 coins $0.01 0.02 coins 0.08x 2026-11-11 21:07 UTC

[Sawed-Off | Spirit Board (Factory New) weapon · Rare](https://gambatracker.com/items/sawed-off-spirit-board-factory-new) [vahidka023](https://gambatracker.com/players/chicken/vahidka023) $0.13 0.26 coins $0.13 0.26 coins 1.00x 2026-11-11 21:07 UTC

[MP9 | Black Sand (Field-Tested) weapon · milspec](https://gambatracker.com/items/mp9-black-sand-field-tested) Hidden $0.13 0.26 coins \<$0.01 0.01 coins 0.04x 2026-11-11 21:05 UTC

[MP9 | Featherweight (Field-Tested) weapon · milspec](https://gambatracker.com/items/mp9-featherweight-field-tested) Hidden $0.13 0.26 coins $0.01 0.02 coins 0.08x 2026-11-11 21:05 UTC

[Sawed-Off | Spirit Board (Factory New) weapon · Rare](https://gambatracker.com/items/sawed-off-spirit-board-factory-new) Hidden $0.13 0.26 coins $0.13 0.26 coins 1.00x 2026-11-11 21:05 UTC

[Sawed-Off | Spirit Board (Factory New) weapon · Rare](https://gambatracker.com/items/sawed-off-spirit-board-factory-new) Hidden $0.13 0.26 coins $0.13 0.26 coins 1.00x 2026-11-11 21:05 UTC

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

| Captured | Price | Advertised | Items |
| --- | --- | --- | --- |
| 2 Nov, 21:39 UTC | $0.13 | 89.36% | 24 |

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

listed 1 1.0% restricted 0.0% classified 0.0% mil spec 6.0% industrial 10.0% blue 0.5% Legendary 0.0% violet 0.4% Common 6.0% #4b69ff 1.0% Industrial Grade 25.0% Rare 25.0% milspec 15.0% consumer 10.0% best hit $22.69 (174.5x)

18+

**Case opening is gambling with skins as the currency.** At 89.4% RTP, every $100 put into cases returns $89.36 on average: an expected loss of $10.64 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