I ran an ultramarathon (64 miles).

During this time of the year last year I was at a very stressful period at work changing to a new leadership role. I started working out more seriously, and signed up for a half-marathon, that I completed successfully (I had been running occasionally on my own, previously).

As the rewards of physical exercise were kind of immediate and didn't depend on external factors but myself it motivated me to put together a training schedule, and set the goal of finishing an ultra, inspired by some friends. I didn't communicate it to many people but just a few close friends. It was an endurance challenge, and I am very happy to have it accomplished.

Also, my performance review improved.