Iron Viz

Data tells a story. Who visualizes it best?

The 2024 Iron Viz Qualifiers are coming … Details and competition launching on October 2, 2023.

Iron Viz 2023: Best in Class


Day two of Tableau Conference 2023 saw three fierce data whizzes take the stage for this year’s Iron Viz competition. In front of a massive global crowd, both in-person and virtual, they raced the clock and battled dashboard-to-dashboard to create mind-blowing visualizations.


Congratulations to Paul Ross, who inspired and impressed the judges and audience with his visualization—Can We Close the Climate Gap? A Tale of Two Renewables. Much admiration and enthusiasm for our other finalists,  Brittany Rosenau and Nirosh Perera, too.  

Read our blog for a detailed recap.



Go behind the build with our 2023 finalists

What to expect as we look forward to the 2024 championships? Watch Iron Viz: Behind the Build, where our 2023 finalists spent time talking through the technical skills and strategies they employed on the main stage with Iron Viz co-host, Andy Cotgreave.


Paul Ross

Paul and Iron Viz co-host, Andy Cotgreave, relive the winning visualization.


Brittany Rosenau

Brittany and Iron Viz co-host, Andy Cotgreave, discuss strategies behind a second-place finish.


Nirosh Perera

Nirosh and Iron Viz co-host, Andy Cotgreave, share skills and techniques behind his minimalist dashboard.

What is Iron Viz?

Iron Viz is the world’s largest data visualization competition. What began as a breakout session at Tableau Conference 2011 has grown into a global phenomenon and become a core part of the Tableau Community. Three Iron Viz contenders take center stage and have 20 minutes to tell the most compelling story using the same data set. Like the qualifier leading up to it, contestants’ vizzes are scored based on analysis, storytelling, and design. It is something you must see to truly understand.

What to expect

Powered by Tableau Public

Grow your data skills with Tableau Public

Tableau Public is the backbone of Iron Viz. This free platform allows users to explore, create and publicly share data visualizations online. It is also the world's largest repository of data visualizations. Utilize it to advance your career in analytics by learning from limitless data inspiration and creating an online portfolio of work.

Get started on our free platform