Iron Viz Championship

Contestants: Joshua Milligan, Tristan Guillevin, and Jacob Olsufka

Joshua Milligan is a Tableau Zen Master and principal consultant at Teknion Data Solutions who is passionate about helping others gain insights and make decisions using Tableau. He is also the author of Learning Tableau (now in its second edition), and loves to blog about Tableau and data storytelling at He, his wife, and his three young children currently reside in Tulsa, Oklahoma. Check out some of his work here.

Tristan Guillevin is a 25 year old Data Traveler at ActInVision. He has been working in Tableau for two years. Some of his favorite things are music, sports, movies, and beer! He is excited to compete in the Iron Viz Championship at his first Tableau Conference. Check out some of his work here.

Jacob Olsufka is an analyst at Decisive Data. He loves creating data and using Tableau to bring ideas to life. Check out some of his work here.

Learn More about the Iron Viz Championship