AIM Pro Walleye Series at Otter Tail Lake

Otter Tail Lake, in Otter Tail County in west-central Minnesota, is the lake that gives the county its name and its most enduring fishing identity. The AIM Pro Walleye Series comes to Otter Tail Lake on Sunday, May 17, 2026, launching at 7:00 a.m. from the Battle Lake City Ramp at 100 Park Avenue. Boat inspections begin at 6:00 a.m. at the same location. The event is a single-day competition with cash prizes, drawing professional-level walleye anglers from across the upper Midwest to one of the region’s most consistently productive clear-water fisheries. Registration closes May 13; participants should visit the AIM Pro Walleye Series website for current entry details and fee structure.

Otter Tail Lake covers 13,765 acres with water clarity that reaches 15 feet in a good season, which is unusual for a prairie-edge lake of its size. The clarity produces a distinctive walleye fishery that rewards precise depth and presentation work rather than volume casting, making the lake a particular challenge for tournament anglers accustomed to stained-water Midwest reservoirs. Battle Lake, the small town at the north end of the lake, has a walkable main street running south from the public ramp, with restaurants, bait shops, and outfitters that cater to the lake’s year-round fishing economy. May walleye fishing on Otter Tail typically focuses on rock reefs and sandy transitional zones as the fish move through post-spawn patterns in water temperatures rising from the low to mid-50s.

Otter Tail County and the Lakes Region

Otter Tail County contains 1,048 named lakes within its borders, a density that makes it one of the most lake-rich counties in the United States by any measure. The county seat is Fergus Falls, 30 miles north of Battle Lake, which holds the Otter Tail County History Center and a downtown arts district that anchors the region’s cultural calendar through the summer months. Maplewood State Park, 12 miles east of Battle Lake, protects a stretch of the Leaf Hills moraine terrain with 20 lakes and ponds within the park boundary and more than 20 miles of trail through aspen and oak woodland. For families extending the trip beyond the tournament, the park’s swimming beach on Grass Lake operates through the summer season with lifeguards on duty.

If You’re Going with Kids
Inspiration Peak, a 1,750-foot glacial knob about 35 miles northeast of Battle Lake near Urbank, is the highest point in the Leaf Hills and offers a 360-degree view of the surrounding lake-dotted terrain from a short quarter-mile trail. Author Sinclair Lewis, who grew up in nearby Sauk Centre, described it as “possibly the most beautiful spot in Minnesota.” The climb is manageable for children as young as five.

Where to Stay on the Water

Battle Lake has several lakeside resorts and cabin clusters on Otter Tail’s shoreline, a number of which have been family-operated for multiple generations. For direct waterfront access close to the tournament ramp, look for properties near Otter Tail Lake and Battle Lake on Lake.com. A West Battle Lake cabin with direct water access is available on Lake.com and puts you within walking distance of the city ramp for the May 17 tournament. Book early: the Memorial Day window on Otter Tail County lakes is one of the most competitive lodging periods in the Minnesota lake country calendar.