LOL Brain

Overview

The draft calculator weighs lane matchups, team synergy, composition archetypes, and win probability using ranked data. Across recent matches, the tracker records KDA, CS per minute, damage per minute, gold per minute, and win rate. Behavior tools add tilt detection, patterns by session, hour, and day, plus a 0-to-100 readiness score for deciding whether to queue.

LOL Brain draws public match history and ranked data through the Riot Games API after players link a Riot ID and region. The draft calculator works without an account; signing in with Google unlocks personalized behavior analysis, tilt detection, and the queue-readiness score. The terms caution that estimates may be inaccurate and do not guarantee match outcomes, so use the numbers to inform reflection rather than as match guidance to follow blindly.

Key features

• Draft analysis: Matchup, synergy, archetype, and win-probability views give players several angles on a five-player lineup. That makes it useful for evaluating composition trade-offs, though its estimates should not settle a draft decision on their own.
• Performance tracking: Recent-match metrics put farming, damage, economy, and results in one place. This can help players identify patterns to work on; the metrics do not by themselves explain why a match went a certain way.
• Behavior insights: Tilt detection, session patterns, time-based win rates, and a queue-readiness score focus on when and how a player queues, not just match statistics. These personalized tools require Google sign-in.
• Windows live draft companion: The companion displays champ-select picks, counters, ban targets, synergy reads, and win probability. It suits players who want draft information during champ select, while browser users can use the tools without installing a desktop client.

Pricing

LOL Brain’s Free plan costs 0.00 USD per free and includes all tools. The draft calculator needs no account; Google sign-in unlocks personalized behavior analysis, tilt detection, and Should I Queue. There is no paid tier or free trial described, so there is no cheaper plan that trades away features. The main distinction is between anonymous draft use and signing in for personal behavior insights.

Platforms

The browser tools require no installation or desktop client. The Windows companion supports Windows 10 and 11, needs no account, and updates itself after installation; Windows may show a SmartScreen warning. The service supports League of Legends only.

Who it's for

LOL Brain is a sensible fit for ranked solo-queue players on any server who want free draft context alongside recent-match and behavior patterns. Players who prefer not to connect a Riot ID and region or sign in with Google can still use the draft calculator, but not the personalized behavior tools. Those seeking guaranteed predictions or a broader game roster should look elsewhere.

Pros and cons

Pros

• All tools are free: Draft, performance, and behavior features are not split across paid plans.
• Useful without an account: The draft calculator and Windows companion avoid a sign-in requirement.
• More than match stats: Queue timing and session patterns complement the performance metrics for players examining their own habits.
• Privacy controls: The privacy policy says personal data is not sold, rented, or shared with third parties, and users can request deletion at any time. Google sign-in provides LOL Brain with a name and email, not a stored Google password; the site uses a session cookie and says it has no tracking or advertising cookies.

Cons

• Personalized behavior analysis requires sign-in: Players who want tilt and readiness insights must use Google sign-in and link their Riot ID and region for public match data.
• Recommendations are only estimates: Win probability and other guidance cannot promise accuracy or a match outcome.
• Windows installation may prompt a warning: SmartScreen can interrupt installation, even though the companion self-updates afterward.
• One game, one desktop platform: The toolkit covers League of Legends, with a companion only for Windows 10 and 11.

Alternatives

For broader game coverage and mobile access, OP.GG has Android, iOS, macOS, web, and Windows platforms, a free membership, and a $3.00 per month Ad-free plan; choose it if those platforms or an ad-free paid option matter more than LOL Brain’s focus on behavior insights.

ProComps is another web and Windows option for player profiles and teams, with unlimited profiles and teams on its free plan. Its free plan contains ads and requires premium access for champion pools during live drafts, so LOL Brain is the stronger fit for free live champ-select reads.

For other games or simpler team-building needs, Pokémon Team Builder is a free, no-account, no-ads option on Android, iOS, and web; Genshin Impact Team Builder is a free web tool that estimates team scores from party structure; and Really Can't Macro Team Comp Builder builds five-champion League of Legends teams on the web. These are better choices when their specific game or narrower team-building approach is what you need.

For additional alternatives, browse Game Team Builder Tools. GenshinBuilds Party Builder, StarGuide, and Teyvat Tactician are other options in the directory.

Verdict

Choose LOL Brain if you play ranked League of Legends and want free draft analysis plus a way to review both match performance and queue habits. Its standout advantage is putting those tools together without a paid plan, with browser access and an optional Windows champ-select companion. Look elsewhere if you need cross-game coverage or want recommendations you can treat as reliable predictions rather than estimates.