Land Between the Lakes Trail Runs Course Guide

The 50 Mile repeats the roughly 11.3 mile Canal Loop four times, mostly packed-dirt singletrack with rolling hills on the Lake Barkley side and larger hills on the Kentucky Lake side, plus a short paved lead-in from the start. It is one of the largest trail runs in the country by field size, but the club-run, small-town hospitality keeps it approachable. The 12-hour overall time limit and final-loop cutoff (8 hours 30 minutes into the race, about 3 PM off the usual 6:30 AM start) mean you need real pacing discipline across four loops, not just enough fitness to cover 50 miles eventually.

Every distance starts together in front of Patti's 1880s Settlement on JH O'Bryan Ave in Grand Rivers, directly across from packet pickup, runs about 1.7 miles of road to the Canal Loop trailhead, then completes the roughly 11.3 mile loop the required number of times: one for the 23K, two for the marathon, three for the 60K, and four for the 50 mile. The marathon and the 50 mile both add a short 0.62 mile out-and-back after their final loop, the marathon's out-and-back is new this year, a fix for marathoners coming up short of the full 26.2 without it. All distances finish back at Grand Rivers.

Mid-March in western Kentucky is chosen partly because the course still has clear lake views before spring leaves fill in, and temperatures are usually mild with low insect pressure. Aim for roughly 60 to 90 grams of carbohydrate per hour for the longer distances, and keep sodium in the 300 to 700 mg per liter range depending on conditions. Because every distance returns through the start-finish area after each loop, use those passes to check and adjust your fueling plan rather than committing to one plan for the whole day. Build your numbers with the free ultra fueling calculator before race day.

All distances share a 12-hour overall time limit from the start. The 60K has an additional cutoff requiring you to start your final loop within 7 hours 45 minutes of the start, and the 50 Mile requires starting its final loop within 8 hours 30 minutes of the start. Off the usual 6:30 AM start those land around 2:15 PM and 3:00 PM, but the start time is subject to change (it moved to 7:00 AM last year for daylight saving), and the cutoffs are fixed durations from the start, not fixed clock times, so they shift with it. Miss either final-loop cutoff and you will be directed back to Grand Rivers to receive credit for the distance you actually finished, rather than being allowed to continue.

The loop format is friendly for a first ultra: you pass through the start-finish area after every lap, simplifying drop bags and crew, and the field is large enough (historically over 700 runners across all distances) that you will rarely be running alone. Rolling but not extreme terrain and a 12-hour time limit with generous final-loop cutoffs give a well-prepared first-time 50-mile or marathon runner real room to finish, and finishers earn a fantastic buckle (50 mile/60K) or medal (marathon/23K) plus a shot at a special LLTH/LBL double award if you also run Louisville Lovin' the Hills.