lobbydiff Legal

What lobbydiff does

lobbydiff is a Teamfight Tactics (TFT) analytics site that estimates hidden matchmaking rating (MMR) by analyzing ranked match data from the Riot Games API. The site provides player lookups, MMR estimates, LP tracking, Challenger leaderboards with carry data, and region-level statistics across all Riot API regions.

Data accuracy

MMR estimates shown on lobbydiff are unofficial calculations based on opponent rank data — they are not Riot's actual matchmaking rating, which is never publicly exposed. LP, rank, and match data is pulled from the Riot Games API but may be delayed or served from cache. Do not treat any data on this site as authoritative.

No warranty

lobbydiff is provided as-is with no guarantees of uptime, accuracy, completeness, or availability. The site may go offline, return incorrect data, or change without notice. Use it at your own discretion.

Acceptable use

You may not scrape, crawl, or systematically download data from lobbydiff. You may not attempt to abuse the Riot Games API through this site. You may not use data obtained from lobbydiff to harass, stalk, or target any player. Violation of these terms may result in your access being restricted.

Intellectual property

The design, code, and MMR estimation algorithms powering lobbydiff are proprietary. Riot Games owns all rights to Teamfight Tactics, including game data, champion names, assets, and related intellectual property. Data displayed on this site is provided freely for informational purposes and is not for commercial resale.

Limitation of liability

To the fullest extent permitted by applicable law, lobbydiff and its operator shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, use, or profit arising from your use of the site, whether based on warranty, contract, tort, or any other legal theory.

Changes to these terms

These terms may be updated at any time. The "Last updated" date at the top of this page will reflect the most recent revision. Continued use of lobbydiff after changes constitutes acceptance of the updated terms.

Contact

For questions about these terms, reach out on Discord to ruzxv.

Information we collect from visitors

lobbydiff does not require accounts, logins, or any form of registration. We do not collect your email, name, or any personal information. We do not use analytics cookies, advertising cookies, or tracking pixels. We do not log your IP address in our application.

Cloudflare, our hosting provider, may collect standard web server logs (IP addresses, request timestamps, user agents) as part of their CDN and security services. This is governed by Cloudflare's Privacy Policy.

Player data we store

We store the following data derived from the Riot Games API: Riot IDs (gameName#tagLine), match history and compositions, LP and rank snapshots, and computed MMR estimates. All of this data is publicly available through Riot's developer API — we do not access any private player information.

How player data is obtained

All player data is obtained exclusively from the Riot Games API. We do not collect data from site visitors, scrape other websites, or accept user-submitted data. Our cron workers pull league entries, match histories, and rank information directly from Riot's API endpoints at regular intervals.

Data retention

LP snapshots are retained for the most recent 30 entries per player. Match analysis data is kept for the last 25 matches per player. Leaderboard and region statistics are refreshed every 10 minutes and overwrite previous values. Cached analysis results expire after 24 hours.

Player data removal

If you want your data removed from lobbydiff, contact us on Discord (see below). We will remove your cached data from our database and KV storage. However, because lobbydiff automatically pulls data from Riot's public API, your data may reappear if you remain in Riot's public league entries. To prevent this, you would need to change your Riot API privacy settings through Riot directly.

Third-party services

lobbydiff uses Cloudflare for hosting, CDN, DNS, database (D1), and key-value storage (KV). We use the Riot Games API to obtain game data. We do not use Google Analytics, ad networks, social media trackers, or any other third-party analytics or advertising services.

Children's privacy

lobbydiff does not knowingly collect personal information from children under 13. Since we don't collect personal information from any visitors, this risk is minimal. If you believe a child's information has been stored, contact us and we will address it promptly.

International data

lobbydiff processes data through Cloudflare's global network, which means data may be processed in various countries. Player data from all 15 Riot API regions is stored in Cloudflare's infrastructure. By using lobbydiff, you acknowledge this international data processing.

Changes to this policy

This privacy policy may be updated at any time. The "Last updated" date at the top of this page will reflect the most recent revision. Continued use of lobbydiff after changes constitutes acceptance of the updated policy.

Contact

For privacy-related questions or data removal requests, reach out on Discord to ruzxv.