Hello the community,
I want to invite you to take part in the Topcoder Open '17 Marathon competition.
The first round is about to start tomorrow, April 12 at 17:00 UTC, and will last for 2 weeks.
There is a short article from our long-time marathoner, wleite, who describes why you definitely should participate.
As one of the bloggers this year, I wrote some introductory articles you may also want to check:
Marathon Challenges: An Introduction
Approaching A Marathon Match Task, Pt. 1
Final Results Of Marathon Match 93
Note that this year the rules have changed quite a bit, I encourage you to read them if you plan to participate.