The board's logo is made with the Orokin Language (referred to as Tennobet by Digital Extremes). It is an alphabet used to replace the Latin Roman alphabet with something more fancy for the game. The alphabet was released to the public on 30 October 2014.

To recreate the speedrun.com image, I used TennoTyper by Clarvel (original post). This allowed me to export a transparent image of the phrase "speedrun.com" to GIMP for touch ups and coloring. It took about 3 hours to create, modify, and upload.

For more information on the language, there is an article for it on the wiki. There's also an alphabet cheat sheet available there too.