![Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz](https://www.theconcordinsider.com/wp-content/uploads/2018/05/RockNRace-cm-051818-EF-113-683x1024.jpg)
Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz
![Participants cross the finish line of the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz](https://www.theconcordinsider.com/wp-content/uploads/2018/05/RockNRace-cm-051818-EF-207-1024x683.jpg)
Participants cross the finish line of the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz
![Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz](https://www.theconcordinsider.com/wp-content/uploads/2018/05/RockNRace-cm-051818-EF-197-683x1024.jpg)
Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz
![Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz](https://www.theconcordinsider.com/wp-content/uploads/2018/05/RockNRace-cm-051818-EF-124-683x1024.jpg)
Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz
![Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz](https://www.theconcordinsider.com/wp-content/uploads/2018/05/RockNRace-cm-051818-EF-151-1024x683.jpg)
Thousands of runners and walkers took part in the annual Rock 'N Race 5K in downtown Concord on Thursday, May 17, 2018. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz