I ran a half marathon at an 8:25/mile pace today. That is WAY faster than I thought I could do it.
In 2008, I ran a 4k (~2.5 miles) at an 11:11/mile pace, and felt like I was going to die. Today I ran 13.1 miles at nearly 3 minutes per mile faster than that.
Really, all this means is that I have improved from slow to middle of the pack. But I am giant, awkward, uncoordinated, and knock-kneed, so I thought I'd always just be crazy slow. I embrace my mediocrity with pride :-D