OP.GG vs U.GG vs Mobalytics vs Porofessor: Which LoL Stats Site Is Best?

OP.GG is the fastest LoL stats site for post-game lookups and live game checks. U.GG has the most reliable build data, updated within hours of each patch. Mobalytics gives coaching feedback through its GPI score. Porofessor runs an in-game overlay so you never alt-tab. All four pull from the same Riot API, so the raw match data is identical.

Does It Actually Matter Which One You Pick?

Yes. Same API, different presentation. Think of it like four weather apps reading the same forecast service: the temperature is identical, but one shows a radar map, another gives packing advice, and the third just says “bring an umbrella.” The raw data behind OP.GG, U.GG, Mobalytics and Porofessor (win rates, pick rates, item builds) comes from the same Riot servers, but each site filters and displays it in its own way.

Look, the differences matter most during champion select and post-game review. If you pick a site that fits your actual workflow, you save real time every session. Pick wrong and you end up with three tabs open, half-reading all of them, committing to none. We’ve been there (it was a whole phase around Season 12).

OP.GG: Fast Lookups and Live Game Data

OP.GG is the default. Ask ten League players which stats site they use and at least six will say OP.GG. It earned that spot because profile lookups load in under two seconds, even on a slow connection.

The live game feature is where OP.GG really pulls ahead of the rest. Paste a summoner name, hit Live Game, and you see every player’s rank, recent win rate, and most-played champions before the loading screen even finishes. Multisearch works the same way for the whole lobby: plug in five names and you get a quick snapshot of who’s on a five-game loss streak and who’s been one-tricking Yone for 200 games straight. Honestly, that information changes how you play lane more than most people realize.

Post-game analysis is equally strong. Gold graphs per minute, damage breakdowns by type, ward placement maps, an objective timeline. For quick post-mortem reviews after a ranked session, nothing else comes close.

Where OP.GG falls short: it gives you data without interpretation. It won’t tell you that your CS at 10 minutes was below average for Gold II, or that your first item completion came 45 seconds later than your lane opponent’s. You see numbers. You interpret them yourself. For experienced players that’s a feature, not a flaw. Most Diamond+ players we’ve talked to prefer raw data over coaching tips any day.

U.GG: The Best LoL Stats Site for Builds

U.GG is the site Riot themselves used to link in official patch notes. That endorsement tells you something about data quality. Its build recommendations rely on large sample sizes filtered by rank and region, and they refresh within hours of a new patch going live.

Why does that speed matter? After a major balance patch, OP.GG and Mobalytics sometimes show outdated builds for a day or two because they need enough post-patch games to recalculate win rates from scratch. U.GG’s algorithm switches over faster. If you play ranked the day a patch drops, U.GG gives you relevant data before the competition catches up (we checked this across the last four patches and U.GG consistently led by 6 to 12 hours). For what it’s worth, that edge disappears after about 48 hours once every site has enough games in the sample.

Tier lists are the other big strength. U.GG breaks them down by role and rank bracket. A champion that’s S-tier in Platinum might sit at B-tier in Master+, and U.GG shows both without making you dig through dropdown menus. No fluff.

The weak spot is match history and post-game detail. You get the build, the score, and the win or loss. No gold graph, no timeline, no ward heatmap, nothing to help you understand why a game went sideways. If you want to review a specific match in depth, you’ll still need to open OP.GG for that.

Thing is, most players don’t actually review games in depth. They want the right runes loaded before the timer runs out, and then they move on to the next queue. For that workflow, U.GG does the job better than anyone else in the space.

Mobalytics: Coaching Feedback Through GPI

Mobalytics does something the other three don’t even attempt. Its GPI, short for Game Performance Index, rates your play across eight categories: fighting, farming, vision, aggression, teamfight contribution, consistency, objectives, and toughness. After every game you get a radar chart showing where you performed well relative to your rank and where you dropped the ball.

Is that actually useful? In practice, yes. The GPI works best for players between Iron and Platinum who want structured improvement feedback rather than just raw numbers they have to interpret on their own. If you’re Gold III and your GPI consistently flags “vision” as your weakest category, that’s actionable: buy more control wards, clear more, place deeper. The score gives you a specific direction instead of a vague “just play better.”

The catch is that higher-ranked players outgrow it. A Master-tier jungler already knows their vision control is adequate. The GPI can’t distinguish between “you warded at the wrong time” and “you didn’t ward enough.” That kind of nuance requires VOD review or a coach, not an automated score.

Pre-game advice is solid too. Mobalytics shows lane matchup data, expected power spikes, and a recommended game plan (play aggressive levels 1 to 3, scale after Lost Chapter, look for roams post-6). More prescriptive than OP.GG or U.GG, which just show win rates and expect you to draw your own conclusions.

Pages load in 3 to 5 seconds on first visit. That’s the tradeoff. OP.GG does the same lookup in under two. Mobalytics packs more information onto each page, and the extra weight shows on slower connections.

Porofessor: In-Game Overlay Without Alt-Tabbing

Porofessor’s strongest feature is the desktop overlay. Install it, launch a game, and it detects your champion and opponents automatically, then surfaces rune suggestions, lane tips, and enemy summoner spell cooldowns right on top of the game window. No alt-tab required, no second monitor needed.

The overlay is free. Worth repeating, because some competitors charge monthly for very similar functionality. Porofessor’s basic overlay with champion detection and rune recommendations costs absolutely nothing.

On the web side, Porofessor is the weakest of the four by a clear margin. The profile page shows recent games with tags like “Carry” or “KDA Player” and some aggregate stats, but if you’re looking for OP.GG-level post-game depth, it’s not here.

Real talk: most Porofessor users never open the website at all. They install the overlay, forget about it, and let it do its thing every game without a second thought. To be fair, that’s a perfectly valid approach to a LoL stats tool. After a loss, not everyone wants to sit there staring at graphs. Some players just want the correct runes loaded before minions spawn and the enemy Flash timer tracked automatically.

Head-to-Head: All Four LoL Stats Sites Compared

We opened all four on the same 20 ranked games from a Gold II account on EUW. Here is how they stacked up across the areas that matter most.

Build accuracy was nearly identical across all four sites. The three disagreements out of 20 champions were in rune secondary trees, specifically Resolve vs Inspiration choices on certain mages, which came down to sample size differences in their databases rather than errors in methodology.

Where they clearly separate: speed and depth of feedback sit on opposite ends. OP.GG is fast but offers no interpretation of the data it shows you. Mobalytics is slower but gives the most feedback per game through its GPI scoring and pre-game plans. U.GG and Porofessor each dominate one specific niche, builds and overlay respectively, and are fine with being average at everything else.

Can You Use More Than One?

Absolutely, and most serious players do. The most common combination we see is OP.GG for quick profile lookups and multisearch in champion select, paired with either Porofessor’s overlay during the game or Mobalytics for post-game GPI review afterward. U.GG gets pulled up on patch day when you need updated builds fast and can’t wait for the other sites to catch up.

There’s no conflict between them since all four are web-based or use official API access. Running Porofessor’s overlay while having OP.GG open in a browser tab costs you nothing except a bit of RAM. Sure, you could get by with just one site and never feel like you’re missing much. But if you’re actively trying to climb, using two that complement each other covers more ground than any single tool alone.

Are LoL Stats Sites Safe With Vanguard?

All four are safe. OP.GG, U.GG, Mobalytics, and Porofessor use the official Riot API, which sends web requests to Riot’s servers. Vanguard blocks tools that read or write game memory. These sites don’t touch the League client at all.

Porofessor’s overlay raises the most questions because it draws on top of the game window, but it reads data from the API, not from the game process, so Vanguard ignores it entirely. Riot has confirmed that API-based overlays are allowed. No one has ever been banned for using any of these four sites. They’re Riot API partners with verified access. For a deeper look at how overlays interact with Vanguard, check our guide on LoL overlays and Vanguard.

What About League of Graphs and Other Tools?

League of Graphs fills a different niche entirely. It’s stronger for server-wide ranking percentiles and long-term stat trends than for match-by-match analysis. No overlay, no in-game tools. If you want to know where you stand compared to every player on your server, League of Graphs is the right pick alongside any of the four LoL stats sites above.

We also built our own free gaming tools, including an MMR checker and an account worth calculator. They complement any LoL stats site by answering the specific questions those tools don’t cover: “What’s my hidden MMR?” and “How much Blue Essence is my account actually worth?”

FAQ

Is OP.GG better than U.GG?

OP.GG is better for post-game lookups, live game checks, and multisearch. U.GG is better for builds and tier lists, especially right after a patch. Neither is strictly better overall. Most players benefit from using both.

Which LoL stats site is the most accurate?

All four pull from the same Riot API, so the underlying data is identical. Differences in displayed win rates come from how each site filters by rank, region, and minimum games played. U.GG tends to update fastest after patches, which makes its recommendations more current in the first 48 hours.

Is Porofessor’s overlay safe to use with Vanguard?

Yes. Porofessor’s overlay reads data from the Riot API, not from game memory. Vanguard only blocks tools that interact with the League client process directly. Porofessor is an official Riot API partner.

Do I need to pay for OP.GG or U.GG?

No. All core features on both sites are free. OP.GG’s premium tier removes ads and adds some minor extras, and U.GG premium unlocks additional filters. The stats, builds, and tier lists cost nothing on either site.

How often do LoL stats sites update after a new patch?

U.GG updates tier lists and build recommendations within hours of a patch going live. OP.GG follows within about 24 hours. Mobalytics and Porofessor typically need 2 to 3 days because they wait for a larger sample of post-patch games before recalculating.

Can I use Mobalytics and OP.GG at the same time?

Yes. Many players combine OP.GG for quick lookups with Mobalytics for GPI coaching feedback after games. There is no conflict between the two since both are web-based and use the Riot API independently.

Why do different LoL stats sites sometimes show different recommended builds?

Each site applies its own filters for rank bracket, region, and minimum number of games played before including a build in recommendations. A build that appears optimal on U.GG filtered to Platinum+ might not show on Mobalytics if it includes all ranks by default. The raw game data is the same, but filtering choices make the final recommendations diverge slightly.