World of Logs combat log analyzer allows gamers to save, share and analyze their raiding experiences conveniently and thoroughly in the Blizzard MMO World of Warcraft. If you're new here, make sure you check out the tour for a 1 minute introduction. If you have any questions, we're happy to answer them on the forums.

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Last uploaded reports
Ulduar 25 2h 55m ago
Siege of Orgrimmar 10 3h 4m ago
Siege of Orgrimmar 25 5h 5m ago
Siege of Orgrimmar 10 5h 5m ago
Siege of Orgrimmar 10 5h 6m ago
Siege of Orgrimmar 10 5h 39m ago
Siege of Orgrimmar 10 5h 40m ago
Naxxramas 25 5h 56m ago
Throne of Thunder 10 6h 26m ago
Siege of Orgrimmar 10 7h 15m ago

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Welcome to World of Logs

World of Logs combat log analyzer allows gamers to save, share and analyze their raiding experiences conveniently and thoroughly in World of Warcraft. If you're new here, make sure you check out the tour for a 1 minute introduction. If you have any questions, we're happy to answer them on the forums.

To create an account, simply register and either create your own guild or join one by browsing to it on the realms page.

Siege of Orgrimmar

Posted by Maihem on 16 Sep 2013 10:33 CEST

Work is under way to update WOL for patch 5.4, Siege of Orgrimmar. All bosses are identified by WOL, but difficulty detection has not yet been added. Fight boundary detection also still needs improvement as does kill detection. Keep an eye on the forums for updates!

Server fault

Posted by Maihem on 26 Jun 2013 16:19 CEST

<< About today's WOL outage >>

Since this afternoon WOL has experienced an outage on the site & forums. During maintenance to upgrade memory capacity, our database server failed to boot. We have had to move some hardware around to be able to recover the WOL databases and resume service. The forums have not yet been restored -- we hope to be able to do so this evening.

Heroic TOT kills invalid!

Posted by Maihem on 14 Mar 2013 18:27 CET

We have added validation limits for most ToT bosses on Normal and LFR difficulty. Since detection hasn't yet been added, Heroic fights are also classified as Normal. This causes them to be marked invalid. Heroic detection will be added soon and existing reports will be updated accordingly. We're just trying to keep the normal rankings clean for now.

WOL client stuck!

Posted by Maihem on 07 Mar 2013 11:34 CET

<< Important information for combat log uploaders >>

It has come to our attention that the WOL client often gets stuck while uploading a report after the 5.2 patch. After looking into the issue, it turns out that the 5.2 combat log changes cause the client to use much more memory than before. This can result in it running out of memory and getting "stuck" while uploading.

We are working on updating the client to more efficiently handle the new combat log format. This requires us to change the way the combat log is parsed and compressed for uploading. In turn, this requires changes to how our servers read the uploaded data. Due to the complexity of these changes, this is taking a little longer than we'd like. We hope to have a patch ready for you by tonight.

Patch 5.2 changes

Posted by Maihem on 05 Mar 2013 15:00 CET

We are working on updating WOL with the changes required for the new 5.2 patch. This morning, the servers have been updated to be able to process the new combat log format. Throne of Thunder was added with all bosses present except Ra-den, who is heroic-only and will not be available until next week. Detection and validation have not yet been put into place, which means that the difficulty reported by WOL (10 vs 25) might sometimes be wrong. HP limits will be put in place by the end of the week.

US & EU vs Asia rankings

Posted by Maihem on 05 Mar 2013 14:57 CET

As you may know, Asian realms have had higher item levels than US & EU realms for a while now. Since this impacts the difficulty of the game in a major way, we have decided to separate the rankings by region. Instead of a single global ranking ladder, we now keep one for US & EU and another for Asian realms. To accommodate this change, we have changed the global 200 regular + 100 subscriber ranking spots to 150 regular and 75 subscriber per region. This means an increase of 50%, from 300 total per boss, difficulty & spec to 2x 225 for each such combo.

The ranking pages now all have a dropdown at the top that allows you to select the region you wish to view the rankings for.

Rankings up to #300

Posted by Maihem on 13 Nov 2012 15:54 CET

In order to provide more value for our subscribers, we have added 100 subscriber-only ranking spots. This means that we're now saving 300 rankings for every combination of boss encounter, difficulty and class specialization. The lowest 100 spots are available to subscribers only! We will update the templates for the ranking pages to include a message that indicates this when looking at the subscriber-only ranking spots (#201-300) on short term.

WOL Client on OS X (Java 7u9)

Posted by Maihem on 22 Oct 2012 18:16 CEST

<< Important information for OS X users! >>

It has come to our attention that the recent Java 7 update 9 on OS X is causing Java Web Start applications, such as the WOL Client, to fail to launch. This issue is caused by this recent Java update from Oracle and looks to be fixed in the next Java update. In the mean time, you can find a workaround in the forum topic on this issue:

Rankings freeze

Posted by Maihem on 30 Aug 2012 16:58 CEST

<< Rankings frozen on August 28th >>

until Mists of Pandaria release


With the impending release of the Mists of Pandaria expansion, we have decided to implement an oft-requested change: the rankings will be retro-actively frozen from August 28th onward. Reports with MoP spells as well as those starting or uploaded after the 5.0 patch day (specifically August 28th, 0:00 GMT) will be removed from the rankings. Following that, the rankings for existing instances no longer be updated. Rankings will be re-enabled for instances introduced in the expansion.


There are several reasons for this decision. Firstly, the new talents, skills, items and level cap will render the current rankings worthless as encounters will become much easier. By freezing the current rankings, we keep a "hall of fame" for top scores. The second reason is much more practical: with patch 5.0 it has become much harder to differentiate between difficulties.


As you may or may not know, WOL tries to discern between difficulties by looking at the spells cast. The presence of a "heroic version" of a boss ability in a certain fight serves as an indicator that that fight was indeed Heroic difficulty. With patch 5.0, Blizzard seems to have changed most heroic (and possible other) spell IDs used, which renders WOL's detection routines ineffective. This would require major reengineering of these routines, an effort we find hard to justify with the incoming expansion and subsequent ranking inflation.

Patch 5.0 has made detecting difficulty even harder with the 35% nerf of Dragon Soul. The LFR and Normal difficulties share most spell IDs. Some abilities are usually disabled for LFR, making the encounter easier. We have found that this is not a reliable way to detect LFR vs Normal, however. Another major difficulty indicator (in LFR vs Normal) is the boss's health. This cannot be read from the combat log directly, but can be indirectly inferred. WOL uses this boss health as part of the difficulty detection. With the 35% nerf (which is not applied to LFR), the LFR and Normal boss health values have come to differ so little that LFR is often mislabeled as Normal as a consequence.


Because of the impending ranking inflation and the difficulty-related troubles, we have decided to retroactively freeze the rankings on August 28th, 0:00 GMT. These rankings will remain available for viewing; we may even prevent top reports (more than the usual 20) from expiring, keeping the previously mentioned "hall of fame" intact. When Mists of Pandaria is released, new ranking ladders will be created for the newly introduced instances.

That's all Folks!

For questions or more information, post on the forums or send me an e-mail at maihem [AT]

Missing rankings

Posted by Maihem on 02 May 2012 17:13 CEST

A bunch of rankings have gone missing today.

While updating the validation thresholds for the new 20% nerf in Dragon Soul (up from 15%), some reports from the 15% nerf period were incorrectly validated against the 10% thresholds, causing their fights to be flagged invalid and their rankings to be removed.

The underlying issue has been resolved, but restoring the rankings requires a little more time. We are recrawling affected reports, which will take a few hours at most. By tonight (US) or tomorrow morning (EU), all rankings should be up again.

If you are wondering whether a specific report is affected, have a look at its Ranking Info page. The missing entries will have a > 100% of limit value and empty DPS(e) and Is this report? columns. Clicking the Re-export now button at the top of the page will resolve the issue for that report.

Please do not close the page with the ad you want to report.

I've posted a guide on how to report misbehaving ads on the forum. Please follow the instructions and help make the internet a safer place. Thanks for you time.