Leadville 100 Race Shatters Multiple Course Records

The 2025 Leadville Trail 100 ultramarathon, known for its challenging high-altitude terrain, saw remarkable performances as both David Roche and Anne Flower broke longstanding course records. Roche, who won the men's division, improved his own record by over 11 minutes with a time of 15:12:30, averaging a 9:07 per mile pace. Anne Flower, an emergency room doctor making her 100-mile debut, shattered a 31-year-old women's record set by Ann Trason in 1994, finishing in 17:58:19 and earning second place overall, a feat mirroring Trason's original record run. Flower's victories in the 2025 Leadville Trail Marathon and Silver Rush 50 earlier in the year highlighted her breakout season. Over 700 runners from across the U.S. and 12 countries competed, reflecting the race's growth from its 45-runner inaugural event to a major endurance sports fixture. The race tests athletes with over 15,000 feet of elevation gain, including the formidable Hope Pass, and awards prestigious belt buckles to finishers under 25 and 30 hours.