Sofia Marin
Fairness Analyst
CS2REF.com
About
Sofia Marin is CS2REF's Fairness Analyst. She owns the case-checker methodology, grade thresholds and the distinction between at-site-price return and cash-out market value.
Her work focuses on documenting what a provably-fair mechanism can prove, what it cannot prove, and when a source is too incomplete to support a numerical claim. She does not treat an unavailable odds feed as evidence of a good result.
Sofia reviews the checker assumptions and live grade table before publication and records the retrieval date for every external price source.
Areas of Expertise
CS2 Case MathematicsCash-out RTPProvably Fair SystemsMarket PricingEvidence Standards
Platforms this author covers
| Platform | Code | Published offer | Wagering | CS2REF score |
|---|---|---|---|---|
| Key-Drop | LOOT | 20% Deposit Bonus + $0.50 Free | None | 5.0/5 |
| CaseHug | LOOT20 | $1.00 Free + 20% First Deposit Bonus | None | 4.5/5 |
| Clash.GG | LOOT20 | 5% Deposit Bonus + Free Daily Cases | None | 4.0/5 |
| Hellcase | LOOT20 | Free Case + 5% Deposit Bonus | None | 4.0/5 |
| Skinsluck | LOOT20 | $0.50 Free + Daily Rewards | None | 4.0/5 |
| Skin.Club | LOOT | Free cases + 3% Deposit Bonus | None | 4.2/5 |
| CSGOSkins | LOOT20 | $5 Free + Deposit Bonus | None | 4.0/5 |
How CS2REF authorship and review work
- 1Check the stated scope: which platforms and which criteria this author is accountable for.
- 2Look for the date on each review. An author page without dates is a claim, not a record.
- 3Compare the author score against the independent score shown beside it.
- 4Treat authorship as traceability, not as a guarantee about a third-party platform.
Sources: Valve's published drop-rate disclosure (Counter-Strike blog, June 2017), each platform's own published terms and fairness pages, and independent user reviews on Trustpilot. Ranking methodology: how CS2REF ranks case sites. Outbound platform links are affiliate links, disclosed and never weighted in the order.