is the illinois marathon a good bq course?

By PaceKit Team · Updated April 2026

The course says yes. The data is still catching up.

The Illinois Marathon has 85 feet of total elevation change across 26.2 miles, a Course Score of 99.12, and a profile that one runner described as "not pancake flat, but any hills are very subtle and never last long." The single real hill on the course arrives at mile 24 and lasts about a quarter mile. The weather in late April averages 45°F to 67°F, which is in the favorable range. The organization is sharp enough to earn RRCA Championship status.

The BQ rates, however, are modest: 10.8% in 2025 and 7.1% in 2024. Those numbers are well below the rates at Glass City (24.6%), Carmel (21%), or Eugene (16.8%). The most likely explanation is field composition: the Illinois Marathon draws a broader, less BQ-focused field than races that market specifically as BQ courses. The half marathon and relay attract 10,000+ runners, many of whom are community participants rather than competitive marathoners. The full marathon field (900 finishers) includes a wider range of experience levels than a self-selecting BQ-focused field like Glass City's.

What this means practically: the course is BQ-capable, but the BQ rate reflects the field, not the terrain. If you have the fitness to BQ, the Illinois course will not prevent you from doing it. The flat terrain, the 18 hydration stations, the pacing groups, and the favorable weather all support fast running. You just won't have the psychological boost of knowing that a quarter of the people around you are also chasing a BQ.

If pure BQ optimization is your priority and you're willing to travel, Glass City or Carmel are stronger choices. If you want a flat, well-organized BQ course with a college-town atmosphere, a stadium finish, and a race weekend that your non-running family will actually enjoy, Illinois is a strong pick.