--- title: "Boomerang case on CSGORoll: odds, RTP & drops · gambatracker" description: "Boomerang ($10.74) on CSGORoll, a CS2 case site: advertised RTP 90.92% from 17 items with odds, observed 89.82% over 6,755 openings in 30 days." url: https://gambatracker.com/cases/csgoroll/boomerang rendered: 2026-11-11T17:06Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGORoll](https://gambatracker.com/case-sites/csgoroll) / [Boomerang](https://gambatracker.com/cases/csgoroll/boomerang) # [CSGORoll](https://gambatracker.com/case-sites/csgoroll) · Boomerang A case on CSGORoll, 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/boomerang?window=24h) [7d](https://gambatracker.com/cases/csgoroll/boomerang?window=7d) [30d](https://gambatracker.com/cases/csgoroll/boomerang) [All](https://gambatracker.com/cases/csgoroll/boomerang?window=all) Price · $10.74 · 15.34 coins Advertised RTP · 90.92% · EV $9.76 from 17 items Observed RTP, 30d · 89.82% · 6,755 openings, odds method Variance · 7.3× · of price², per opening Tail share · 1 in 25 · of openings carry half the EV Below price · 82.0% · 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 · 98.35% ±16.70 1,012 openings 7 days · 93.41% ±7.08 5,631 openings 30 days · 89.82% ±6.47 6,755 openings since tracking started · 89.82% ±6.47 6,755 openings 81.0% 98.3% 115.5% ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/csgoroll/boomerang?window=24h) | 1,012 | 98.35% ±16.7 | +0.9σ | odds | | [7d](https://gambatracker.com/cases/csgoroll/boomerang?window=7d) | 5,631 | 93.41% ±7.08 | +0.7σ | odds | | [30d](https://gambatracker.com/cases/csgoroll/boomerang) | 6,755 | 89.82% ±6.47 | −0.3σ | odds | | [All](https://gambatracker.com/cases/csgoroll/boomerang?window=all) | 6,755 | 89.82% ±6.47 | −0.3σ | odds | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 17 items · odds sum to 1 · observed counts over 6,759 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 | | --- | --- | --- | --- | --- | --- | --- | | [M4A1-S \| Cyrex (Field-Tested) weapon · covert](https://gambatracker.com/items/m4a1-s-cyrex-field-tested) | 1 in 50 | $172 246 coins | 35.3% | 119 | 135.2 | 0.88× | | [M4A1-S \| Hyper Beast (Minimal Wear) weapon · covert](https://gambatracker.com/items/m4a1-s-hyper-beast-minimal-wear) | 1 in 50 | $111 159 coins | 22.8% | 150 | 135.2 | 1.11× | | [USP-S \| Monster Mashup (Factory New) weapon · classified](https://gambatracker.com/items/usp-s-monster-mashup-factory-new) | 1 in 100 | $60.40 86.28 coins | 6.2% | 62 | 67.6 | 0.92× | | [Glock-18 \| Neo-Noir (Battle-Scarred) weapon · covert](https://gambatracker.com/items/glock-18-neo-noir-battle-scarred) | 1 in 25 | $29.02 41.46 coins | 11.9% | 277 | 270.4 | 1.02× | | [AK-47 \| Orbit Mk01 (Battle-Scarred) weapon · restricted](https://gambatracker.com/items/ak-47-orbit-mk01-battle-scarred) | 1 in 33 | $22.16 31.66 coins | 6.8% | 227 | 202.8 | 1.12× | | [Desert Eagle \| Midnight Storm (Minimal Wear) weapon · industrial](https://gambatracker.com/items/desert-eagle-midnight-storm-minimal-wear) | 1 in 50 | $19.94 28.48 coins | 4.1% | 139 | 135.2 | 1.03× | | [Five-SeveN \| Anodized Gunmetal (Minimal Wear) weapon · consumer](https://gambatracker.com/items/five-seven-anodized-gunmetal-minimal-wear) | 1 in 25 | $11.54 16.48 coins | 4.7% | 257 | 270.4 | 0.95× | | [AK-47 \| Elite Build (Factory New) weapon · mil spec](https://gambatracker.com/items/ak-47-elite-build-factory-new) | 1 in 33 | $6.99 9.99 coins | 2.1% | 214 | 202.8 | 1.06× | | [M4A4 \| Evil Daimyo (Minimal Wear) weapon · restricted](https://gambatracker.com/items/m4a4-evil-daimyo-minimal-wear) | 1 in 20 | $4.36 6.23 coins | 2.2% | 331 | 338.0 | 0.98× | | [MAG-7 \| Hard Water (Well-Worn) weapon · mil spec](https://gambatracker.com/items/mag-7-hard-water-well-worn) | 1 in 20 | $3.08 4.4 coins | 1.6% | 335 | 338.0 | 0.99× | | [M249 \| Magma (Field-Tested) weapon · mil spec](https://gambatracker.com/items/m249-magma-field-tested) | 1 in 20 | $1.17 1.67 coins | 0.6% | 332 | 338.0 | 0.98× | | [M249 \| Magma (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/m249-magma-battle-scarred) | 1 in 17 | $0.98 1.4 coins | 0.6% | 367 | 405.5 | 0.90× | | [AWP \| Safari Mesh (Minimal Wear) weapon · industrial](https://gambatracker.com/items/awp-safari-mesh-minimal-wear) | 12.0% | $0.23 0.33 coins | 0.3% | 905 | 811.1 | 1.12× | | [Sawed-Off \| Origami (Well-Worn) weapon · mil spec](https://gambatracker.com/items/sawed-off-origami-well-worn) | 22.0% | $0.22 0.32 coins | 0.5% | 1,428 | 1487.0 | 0.96× | | [PP-Bizon \| Candy Apple (Factory New) weapon · industrial](https://gambatracker.com/items/pp-bizon-candy-apple-factory-new) | 11.0% | $0.13 0.19 coins | 0.1% | 767 | 743.5 | 1.03× | | [M4A4 \| Urban DDPAT (Battle-Scarred) weapon · industrial](https://gambatracker.com/items/m4a4-urban-ddpat-battle-scarred) | 1 in 14 | $0.10 0.14 coins | 0.1% | 479 | 473.1 | 1.01× | | [Nova \| Caged Steel (Factory New) weapon · industrial](https://gambatracker.com/items/nova-caged-steel-factory-new) | 1 in 17 | $0.09 0.13 coins | 0.1% | 370 | 405.5 | 0.91× | 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, 14:28 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=csgoroll&case=boomerang) [M249 | Magma (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/m249-magma-battle-scarred) Hidden $10.74 15.34 coins $0.98 1.4 coins 0.09x 2026-11-11 16:59 UTC [PP-Bizon | Candy Apple (Factory New) weapon · industrial](https://gambatracker.com/items/pp-bizon-candy-apple-factory-new) Hidden $10.74 15.34 coins $0.13 0.19 coins 0.01x 2026-11-11 16:59 UTC [M249 | Magma (Battle-Scarred) weapon · mil spec](https://gambatracker.com/items/m249-magma-battle-scarred) [Lidl](https://gambatracker.com/players/csgoroll/Lidl) $10.74 15.34 coins $0.98 1.4 coins 0.09x 2026-11-11 16:59 UTC [Sawed-Off | Origami (Well-Worn) weapon · mil spec](https://gambatracker.com/items/sawed-off-origami-well-worn) Hidden $10.74 15.34 coins $0.22 0.32 coins 0.02x 2026-11-11 16:59 UTC [Nova | Caged Steel (Factory New) weapon · industrial](https://gambatracker.com/items/nova-caged-steel-factory-new) Hidden $10.74 15.34 coins $0.09 0.13 coins 0.01x 2026-11-11 16:59 UTC [M249 | Magma (Field-Tested) weapon · mil spec](https://gambatracker.com/items/m249-magma-field-tested) Hidden $10.74 15.34 coins $1.17 1.67 coins 0.11x 2026-11-11 16:59 UTC [PP-Bizon | Candy Apple (Factory New) weapon · industrial](https://gambatracker.com/items/pp-bizon-candy-apple-factory-new) [Lidl](https://gambatracker.com/players/csgoroll/Lidl) $10.74 15.34 coins $0.13 0.19 coins 0.01x 2026-11-11 16:59 UTC [AWP | Safari Mesh (Minimal Wear) weapon · industrial](https://gambatracker.com/items/awp-safari-mesh-minimal-wear) Hidden $10.74 15.34 coins $0.23 0.33 coins 0.02x 2026-11-11 16:59 UTC [Sawed-Off | Origami (Well-Worn) weapon · mil spec](https://gambatracker.com/items/sawed-off-origami-well-worn) [Lidl](https://gambatracker.com/players/csgoroll/Lidl) $10.74 15.34 coins $0.22 0.32 coins 0.02x 2026-11-11 16:59 UTC [MAG-7 | Hard Water (Well-Worn) weapon · mil spec](https://gambatracker.com/items/mag-7-hard-water-well-worn) Hidden $10.74 15.34 coins $3.08 4.4 coins 0.29x 2026-11-11 16:59 UTC ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 10 Nov, 02:14 UTC | $10.74 | 90.92% | 17 | | 9 Nov, 08:05 UTC | $10.74 | 90.92% | 17 | | 9 Nov, 01:53 UTC | $10.74 | 90.92% | 17 | | 8 Nov, 23:33 UTC | $10.74 | 90.92% | 17 | | 8 Nov, 17:30 UTC | $10.65 | 90.90% | 17 | | 6 Nov, 22:57 UTC | $10.67 | 90.92% | 17 | | 3 Nov, 22:41 UTC | $10.67 | 90.92% | 17 | | 2 Nov, 21:39 UTC | $10.67 | 90.93% | 17 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed covert 8.0% classified 1.0% restricted 8.0% industrial 38.0% consumer 4.0% mil spec 41.0% best hit — 18+ **Case opening is gambling with skins as the currency.** At 90.9% RTP, every $100 put into cases returns $90.92 on average: an expected loss of $9.08 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