What do you get when you offer 5K races to anyone who wants to sign up and you don't charge one cent? You get teenage couples running together on a Sunday morning with the sun barely peeking over the horizon. You get whole families not only urging each other on but joining in at their own pace. And you get dedicated runners blazing through the streets at six-minute-mile clips, all part of one of the most economically and ethnically diverse enterprises in Houston sports history. Believing that an entry fee of $20 or more shouldn't be a deterrent to adults and kids running in 5K races, the non-profit Houston Wellness Project is the biggest breath of fresh air in the past year among all the verbiage calling for everyone to be healthy. On the first and last Sundays of every month, the organization hosts races, and those races are free. Register a few days in advance, and you get a runner's bib with a chip in it, just like in the big contests. You're timed by a professional company, Run Houston Timing, and the results go up on a board at the race site and online later in the day. Right now the races are held at either George Bush Park or the Heights Hike & Bike Trail, but organizers say they're trying to open them up in more sections of the city. It's not fancy, with the top three finishers among males and females getting medals, and there's not a whole lot of extras other than water at the finish line. But it's a chance to get up, get out and get running with no one stopping you because you don't have the money. And there's usually a boom box at the start to get you going.