A little over two weeks ago, I became a marathoner.

It wasn’t long after I crossed the finish line of the 2011 ING New York City Marathon (with my first-ever PR of 4:29:55!)— the medal hanging around my neck, the heatsheet barely keeping me warm, my legs cramping up— when a question that’s pretty common among runners struck me: “What’s next?”

I’m the first to admit that since race day, I have drastically cut back on my running (both in mileage and intensity) and have diagnosed myself with a case of the “post-marathon blues”— it’s real, I swear! After running 26.2 miles, I somehow feel more entitled to extended couch time in the evenings, or hitting the snooze button a few times in the mornings. But I’m officially over this attitude and, well, I really miss you, long runs! So it’s time to get myself back on track (running pun intended) before I lose these killer leg muscles I worked so hard to get during my training.

That’s why I’ll be tagging along for the inauguralRunner’s World Holiday Running Streak— a pledge to run at least one mile every day from Thanksgiving to New Year’s Day.

While training for the New York City Marathon this summer and fall, I blogged about my journey (and all of the missteps along the way) for The Huffington Post. Through that experience, I was able to connect with and actually inspire runners around the world. For this holiday challenge, I’ll be sharing my updates here on Greatist every Wednesday. Check back weekly for a recap of my workouts during the holidays— from a Thanksgiving Day “turkey trot” to kick it all off, to a sure-to-be-hungover (and hopefully hilarious) run on New Year’s Day.

And if you’re looking for some extra fitness motivation (or want to feel a little less guilty about eating all of those Christmas cookies), join me for this Holiday Running Challenge and make your pledge in the comments below!

That’s one mile. Every day. For 38 days.

Who’s with me?!