What the Kamloops Rainbow Derby is and when it happens
The Lake Pend Oreille Kamloops Rainbow Derby is an annual spring fishing tournament held on Idaho's largest lake, drawing anglers who want to catch Kamloops rainbow trout during peak season. The derby typically runs in May, when water temperatures and fish activity make for consistent fishing. The event is organized by local fishing clubs and the Pend Oreille Anglers, a community group focused on lake management and angler access.
The tournament is open to both experienced and newer anglers, with divisions for different skill levels and boat types. Most participants fish from private boats, though some shore-based fishing access is available at designated launch points around the lake. Entry fees are modest — usually in the range of $25 to $50 per angler — and the money supports lake conservation and habitat work that keeps the fishery healthy.
Key Takeaways
- The derby runs during May when Kamloops rainbows are most active and catchable on Lake Pend Oreille.
- Entry is open to anglers of all experience levels, with separate divisions so you compete fairly within your group.
- You will need a valid Idaho fishing license and must follow all state fishing regulations during the tournament.
- The Pend Oreille Anglers and local fishing clubs handle registration and can tell you the exact dates and entry details each year.
- Prize money and awards go to top finishers, with categories for largest fish, most fish caught, and sometimes youth divisions.
How to register and what you need to bring
Registration for the derby opens several weeks before the event, usually through the Pend Oreille Anglers or at local tackle shops around the lake. You will need a current Idaho fishing license before you register — this is a state requirement, not just a tournament rule. The license covers you for the entire season and is separate from the derby entry fee.
On tournament day, you will check in at the designated launch area, usually at one of the main public boat ramps on the lake. Bring your registration confirmation, your fishing license, and a valid photo ID. The tournament typically runs from sunrise to a set weigh-in time in the afternoon, so plan to be on the water early and leave time to return for the official weigh-in.
Fishing methods that work on Lake Pend Oreille
Kamloops rainbows on Lake Pend Oreille respond well to trolling with small spoons, spinners, and plugs — the most common and effective method during the derby. Fish the deeper structure and drop-offs where rainbows hold during spring, typically 40 to 80 feet down depending on the day and water clarity. Early morning and late afternoon are peak feeding times, so many successful anglers focus their effort during those windows.
Casting from shore or from a boat in shallower bays can also produce fish, especially if you use small spinners or soft plastics that mimic the lake's natural forage. The key is matching your lure size and color to what the fish are feeding on — local tackle shops can tell you what has been working in recent weeks. Trolling speed matters too: a slow, steady pace of 1.5 to 2.5 miles per hour usually outfishes faster presentations.
Lake Pend Oreille's geography and where fish concentrate
Lake Pend Oreille is long and deep, with distinct sections that hold fish differently depending on the season and time of day. The northern arm near Sandpoint is shallower and warms faster in spring, making it a good early-season zone. The central basin and southern reaches are deeper and stay cooler, holding fish throughout the day once the sun climbs high.
Points, underwater ridges, and the transition zones between shallow and deep water are where Kamloops rainbows hunt. The lake's major tributaries — the Pend Oreille River inlet and smaller creeks — concentrate baitfish and draw feeding rainbows, especially in early May. Study a lake map before the tournament and ask other anglers where they have been finding fish; the fishing community around Pend Oreille is generous with information.
What to know about Idaho fishing regulations during the derby
All tournament fishing must follow current Idaho Department of Fish and Game regulations, which set limits on the number and size of fish you can keep. During the derby, you are typically allowed to keep a certain number of Kamloops rainbows — check the current year's regulations or ask the tournament organizers, as rules can change. Some tournaments practice catch-and-release scoring, where only the largest fish by length or weight count toward your score, and all fish are returned to the lake.
Barbless hooks are often required or strongly encouraged to reduce injury to fish that are released. Use only legal tackle and methods — no live bait restrictions typically apply on Pend Oreille, but confirm with the organizers before the event. Fishing hours are usually sunrise to a set afternoon time, and you must stay within the designated tournament boundaries on the lake.
Preparing your boat and gear before tournament day
Check your boat's engine, fuel system, and safety equipment at least a week before the derby. Lake Pend Oreille can be cold and windy in May, so make sure your bilge pump works, your battery is fully charged, and you have a working radio or cell phone for communication. Bring extra fuel — running out mid-tournament is a costly mistake, and the lake is large enough that you may travel several miles to reach productive water.
Rig your rods and reels before the day of the tournament so you can focus on fishing rather than tackle setup. Bring at least two rods spooled with fresh line, a selection of spoons and spinners in sizes 1 to 3, and a tackle box with extras. Pack sunscreen, a hat, polarized sunglasses to see fish in the water, and layers — the lake stays cold even as the air warms in May.
Community and local support around the derby
The Kamloops Rainbow Derby is as much about the fishing community as it is about catching fish. Local tackle shops in Sandpoint and around the lake often sponsor the event and offer discounts to participants in the weeks leading up to it. The weigh-in is a social event where anglers gather to see the day's catches, share stories, and celebrate the season.
The money raised through entry fees and sponsorships goes toward lake conservation work — habitat restoration, invasive species management, and access improvements that benefit all anglers. Participating in the derby means you are part of that effort. Many anglers return year after year, and the event has become a spring tradition that marks the beginning of the season on Pend Oreille.
Frequently Asked Questions
Do I need a boat to fish the Kamloops Rainbow Derby?
Most participants fish from boats, but some tournaments offer shore-based divisions or allow fishing from designated access points. Contact the Pend Oreille Anglers to ask whether shore fishing is an option in the current year's derby. If you do not own a boat, you may be able to fish with another angler or rent one from a local marina.
What is the difference between Kamloops rainbows and regular rainbows?
Kamloops rainbows are a strain originally from British Columbia that grow faster and larger than many other rainbow trout strains. They are more aggressive feeders and tend to fight harder, making them popular for both sport and food. Lake Pend Oreille's Kamloops population is maintained through regular stocking by the Idaho Department of Fish and Game.
Can I keep fish I catch during the derby?
That depends on the tournament format and current regulations. Some derbies allow you to keep fish up to the legal limit; others are catch-and-release only, with scoring based on fish size or weight before release. Check the tournament rules when you register to know what applies that year.
What should I do if the weather turns bad during the tournament?
Lake Pend Oreille can develop rough water quickly in spring. If conditions become unsafe, return to the launch area and check in with tournament officials. Most derbies have safety protocols and may pause or adjust the event if weather poses a risk. Your safety is more important than any tournament score.
Where can I find out the exact dates for next year's derby?
Contact the Pend Oreille Anglers directly or check with tackle shops in Sandpoint — they usually have registration information and dates posted several weeks before the event. You can also ask at the lake's public boat launches, where flyers and announcements are typically posted.