is the derby festival marathon a good bq course?
By PaceKit Team · Updated April 2026
It's certified, but the numbers tell the story: 7.4% BQ rate in 2025, 5.6% in 2024. For comparison, Carmel (same weekend, one state north) runs 21%. Mountains 2 Beach runs 24%. CIM runs even higher. The Derby Festival Marathon is a legitimate, USATF-certified, Boston-qualifying course, but it is not a course designed for fast times.
Here's why the BQ rate is low.
The Iroquois Park hills. Miles 10 through 15 include 5 miles of rolling terrain that breaks the rhythm of an otherwise flat course. On a pure BQ attempt, those hills cost you 30 to 90 seconds compared to a flat course, depending on fitness and pacing. More importantly, they fatigue your legs for the second half, making it harder to maintain goal pace over the final 10 miles.
The weather. Late April in Louisville averages a high of 70°F with moderate humidity. That's warmer than ideal for marathon performance. Some years are significantly warmer. The course has exposed sections with limited shade, particularly in the second half after Iroquois Park. On a warm day, the combination of hills and heat pushes the difficulty well beyond what a flat, cool BQ course would present.
The field. With only 500 marathon runners, the field is thin enough that you may not have many people to run with at your goal pace. Pace groups exist, but the selection may be limited compared to larger BQ-focused races. Running alone for extended stretches on a course with hills and heat is harder than running in a pack on a flat course with ideal conditions.
The pedestrian bridge. At miles 14 and 24, you climb a pedestrian bridge that involves a steep, short ascent. It's not on the elevation profile in any obvious way, and multiple runners have flagged it as a surprising gut punch.
Who can BQ here? Fast, experienced runners who have significant cushion past their qualifying standard. If you're 5+ minutes under your BQ time on a flat course, you can absorb the hills and heat and still qualify. If you're within 2 to 3 minutes, Derby is not the race for your BQ attempt.
What this race IS for: running through Churchill Downs, experiencing the Derby Festival atmosphere, checking off Kentucky, and running a marathon that feels like a community celebration rather than a time trial. Those are excellent reasons to run it. Just don't confuse them with reasons to BQ here.