I know this, Emily and RnR, and it seems out of character for this person. She is a super fast competitive runner, just coming back from having a baby. And, she is my older son's age! I became friends with her on FB, to findout that she is one of those "Beachbody" coaches, too. Yuck. It's a giant pyramid scheme.
I find cyclists do the humblebrag all of the time. It is hard for me to take. I don't compete, except maybe with myself, but it is hard to see others, older than me, who are just so much faster. I keep telling myself I am OK, and I am in it for the long haul. I stopped wearing my HR monitor years ago, don't care about power. I use cadence and speed to judge my rides. While I do look at my speeds, I try not to obsess.