About The One Fly

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Official Results

Jackson Hole One Fly Event Rules

Updated for 2009

One Fly Rules PDF Version (for printing)

Teams

A.        Each team will consist of four fishing contestants.  Alternate contestants may substitute on a daily basis.

B.        Only one member of the team may be a professional full-time or part-time fresh or salt- water fly fishing guide or captain.  A professional is defined as anyone who, within the last 5 years, has received income for services performed as a guide or captain.

C.        Two contestants will fish in each boat and will be from different teams.

Equipment

A.        Contestants will furnish their own fly fishing equipment.  Each contestant may bring one or two fly rods in the boat.

B.        The type of rod and fly reel is the choice of each contestant.

C.        The use of fly floatant or other accessories will be at the discretion of the contestant. Only floating fly lines are permitted. Sinking leaders six feet or less in length are permitted.

D.        Use of motors on boats during event hours is prohibited.

E.         No real or artificial fish attractants, such as scents, are allowed.

Event Flies

A.        Any conventional fly pattern (dry, wet, nymph, streamer, etc.) may be used as long as it is no larger than size #6 and is 3x or shorter in length. The guide will compare each competition fly to a template.

B.        The fly may have one bead, cone or dumbbell eye set and may have lead or non-lead wire used in the construction of the fly. Non-lead weight may be added to the leader. Molded metal heads (jigs) are not allowed. Tube flies are prohibited.

C.       Flies must be tied on a single barbless hook, or on a hook with the barb pushed down.

D.        Contestants will choose the fly they will use each day. A different fly and a different pattern may be used on the second day of the event.

E.        The guide must approve the contestant's fly selection before 8:30 AM. The guide’s judgment regarding the legality of the fly, its size and barbless nature are considered final.

F.         Repair of flies may only be done with the use of glue or any adhesive. Any re-tying of the fly with thread or fly tying materials is prohibited. Broken hooks may be honed or filed to a usable sharpness via any sharpening tool.

G.        Traditional strike indicators are allowed. Flies, even those with broken hooks, are not allowed to be used as an indicator. Only a single fly may be attached to the leader.

Fishing Procedure

A.        Federal and state rules and regulations governing the waters to be fished will be strictly observed.

B.         All main river channels are fishable.

C.        All trout species will be counted in the scoring. No whitefish will be counted.

D.        Fishing hours on the Snake River will be from 8:30 AM until 4:30 PM on day 1, and from 8:30 AM until 4:00 PM on day 2. Fishing hours on the South Fork River for both days will be from 8:30 AM until 4:00 PM. Guides are the official timekeepers and judges.

E.        With the permission of the fisherman who has the fish "on the line", guides or boat partners may assist in landing any fish to be scored in the event.

F.         If a contestant's fly becomes caught in brush or in a snag, it may be recovered and reattached to the leader. The contestant may continue fishing in the event. The contestant can be disqualified by the guide for any unsafe practice used to retrieve a fly.

G.        Daily scoring ends for the contestant when his official fly becomes irretrievably lost. That person may continue to fish for the remainder of that day, but no fish caught after the contest fly is lost will count for that day’s scoring.

H.        Fishing contestants will mutually agree on boat position assignments (front & back) so that each angler spends one half of the fishing day in the front of the boat. This schedule continues even if an angler loses his fly.

I.         The person in the front of the boat will, within reason, have the choice of boat position, such as right bank vs left bank, casting distances, etc., or stopping the boat to fish.

J.         Contestants must wear (and have fastened) their life vests while fishing or being transported on the river.

K.        Guides will be furnished daily a Rules Violation Sheet, where the guide will write out any violation, have it signed by a witness (other person in the boat) and must turn the Violation Sheet into the Rules Committee within 2 hours after landing. The three (3) person Rules Committee who will be at the scoring area will consist of two One Fly board members and a guide representative.  The Committee will rule in writing on the violation within one hour after receiving it. Penalties will vary with the violation, from sanctions, to nullifying daily scores, to disqualification from the event. Violations will be considered only from the guide who is guiding the violator.

L.        Trout caught from tributary streams which enter the primary river will be deemed eligible for scoring if the fly is cast no more than 100 ft. upstream into the tributary from the high mark of the natural stream bed of the main river. Any contestant who is trespassing on a tributary stream, which is not legal for fishing, will be disqualified from the event.

Scoring

The One Fly has adjusted its scoring procedures to reduce the handling of our native trout.

A.        To be counted in the score, the release of a caught trout must be witnessed by the guide. Each of these trout will have a value of two points. If the angler or the guide touches the leader while a fish is “on”, then that fish is counted as two points.

B.         Each contestant will be allowed to select eight (8) trout to measure during the day. Six (6) of these fish will have a bonus score. All trout not selected for measurement will be released immediately, preferably without removing them from the water.

C.        Measurement of trout should be done by the guide while the trout is in the water whenever possible. The guide should measure the trout with a Fishscale on a rod or net handle, a ruler, a measuring trough or like device.  Any trout which measures ½" or greater is rounded to the next full inch by the scoring committee. For example, a measurement of 21.5 inches equal 22 inches for scoring purposes. The guide should measure and record the exact fractional inch and allow the scoring committee to tabulate the final value. Fish are measured from the tip of the nose to the tip of the relaxed tail. The tail is not to be pinched.

D.        Each of the six fish for bonus scoring by a contestant will be scored as follows:

E.        25 points will be awarded to a contestant each day that contestant keeps his competition fly all day.

F.        A penalty will be assessed for any fish killed or ruled by the guide to be unable to survive. Each of these fish will be measured and the scored value of that trout will be subtracted from the angler's score. That trout will not be counted against the daily limits of six measured trout.

These rules are subject to change and modification as directed by the One Fly Board of Directors and Rules Committee.