Colorado Tennis Championships - Senior Divisions

Colorado Tennis Championships - Senior Divisions. Twenty-nine draws spanning singles and doubles across hard courts at Lone Tree Tennis Center, just south of Denver, a sprawling facility that draws serious regional players heading into fall. Level 4 Open competition means you'll face players who know what they're doing, not beginners; August timing gives you late-summer match sharpness before schedules tighten up. Entry runs $30 to $36 per event.