18th and 19th April 2025
18th and 19th April 2025
TrailO

General Details
TrailO Ethos
We recommend those who haven’t done TrailO before, or haven’t done it for a while to have a read of the IOF Technical Guidelines and Rules on the IOF website. Here is a reminder of some important aspects of fair play (apologies if they sound a bit prescriptive):
- TrailO is an individual sport with competitors reaching decisions on their own. When on the course do not discuss controls with other competitors (and do not discuss with others after you have finished in the vicinity of anyone who may not have done their course).
- Please stay silent at all times on the course.
- Do not enter the terrain. Follow the designated routes to/from the start/finish. Stay on the main track during the event and do not use side paths – note that some of the larger ones are marked with purple bars on the map, but not all will be marked in the terrain.
- No mechanical or electronic navigation aids, other than an odometer, watch or compass may be used. Magnifying glasses are permitted. Competitors must not carry mobile phones or smart watches or any other device that could transmit or receive information.
General Info
Both days of TrailO will be part of the 2025 British TrailO League (BriTOL).
Note that a fair amount of the information on the General Info page applies to TrailO too.
Any queries may be directed to the TrailO Coordinator (John Kewley, MDOC) via the Contact Form.
Event Centre
Each day at Assembly/Registration you’ll find:
- An Accessible toilet (till 17:00)
- Handout of the TrailO specific number bibs - please add any medical conditions and/or medication you take on the reverse of the bib
- Handout of Control Cards (on D1 these will include a route map for the TempO as well as a separate PreO Sprint control card)
- Borrowing of SI-cards for those that don’t possess them and haven’t rented them for FootO (D1 PreO Sprint and D2 PreO will use SI-timing for the course) - and don’t forget to RETURN THEM afterwards!
- Borrowing of pin punches for those that don’t possess them (these will be used to mark your answers on your control cards on D1 PreO Sprint and D2 PreO) - and don’t forget to RETURN THEM afterwards!
- Limited Entry on the day for the Standard Class (subject to map and control card availability), but please bring cash (exact change preferred).
- Helper vouchers (for use at FootO vendors) for pre-registered helpers.
- Solution Sheets once all competitors have started their course, we’ll try and arrange ones that are left over to be taken to Day 3 FootO Enquiries.
- [Day 2 only] Sign-in sheet for non-competitors (incl assistants, family members)
Starts
Pre-starts will be within 50m of Assembly on both days. Start times will not be pre-allocated. First starts will be for those who are manning the TempO stations and they will need to finish their own courses (and in some cases also after having finished their FootO course) before we can start other competitors so please be patient.
Course Markings
Decision Points
Decision points (AKA Viewing Points) are marked on the ground for each PreO and PreO AZ control, but do not appear on the map. They indicate the location from which you can see all pertinent flags and in the correct order. You may view the kites from different positions by moving along the path, but the order of kites may change, so re-checking the chosen kite from the decision point is recommended. They will be marked using a small card by the side of the track. The number at the decision point will correspond to the control number on your map preceded by one of E (Elite both days), N (Standard class day 1) or A (Standard class day 2).
Tapes
Red + White tapes may be used in the terrain for a variety of purposes:
- The D1 PreO A/Z section will have tapes showing how far you can move up the track. As we won’t be able to block all other park users some of these tapes may be incomplete, but they will be marked on the map - please go no further. You also cannot return back through the Start or go beyond the Finish.
- For A/Z controls (labelled just “A” in the Control Description Sheet) a single tape from the decision point pointing away from the track (or a very narrow “V” shape) will indicate the “kite in question” for the longe- range kites that may be hard to see. This will apply for both Day 1 PreO Sprint and Day 2 PreO.
- To mark a small section of ground off the main path to extend the viewing area. You may move up but not cross these tapes (used on D2 Elite course for a DP, but Standard may use it too). See map segment below.
- To mark off a path at a junction to show where you MUST NOT pass (we will not be able to mark all of these on the ground, but they’ll be marked on the map with a bar). See map segment below.
- On Day 2 PreO as well as A/Z controls there will be some with multiple kites, the kite to be considered will in many cases be obvious, but where there is any doubt a “V” shape at the decision point will show which kites are to be included (the correct number of kites should be within the “arms” of the V. Where there are kites from a control close to another one at a distance where the “V” tapes wouldn’t be clear, a single tape may be placed in the terrain to separate the clusters.
One-way gate
Day 2 has a one-way gate for Elite - you must punch all previous controls before crossing the line and once you have crossed it you may not return. There will be one-way signs on the ground and it will be marked on the map with a pair of chevrons pointing in the direction of travel. See map segment.
Zero Tolerance
If the answer of a task is Zero, there will be no flag closer to the correct location than 4m. For extra long-range controls we will use a double kite for better visibility (the lower kite hung below the normal one) and for these controls an 8m tolerance will apply.
If there is at least one kite on the correct point (or minimum-sized) feature, then this will not result in a Zero answer.
Punching
Controls may be punched in any order within each part of the course (the lines between controls will be omitted as this is the convention for a “free order” course. The only exception to this is the one-way gate.
While an SI card will be used to time your course, answers for Preo will use a personal pin-punch which you take round the course with you. You should punch your chosen answer in the correct box of your control card which you will get at the Event Centre.
For a control to be accepted as correct, there must be only a single punch given for that control – no double punches will be accepted.
TempO & TCs
At both the Day 1 TempO stations and Day 2 Time Controls we are trying to speed things up to ensure effective throughput as due to the high number of entries we’ll be pushed for time to get everyone through the course.
The time limit at a TempO station is 150s (for 5 tasks) and at a PreO Time Control 90s (for 3 tasks), but please remember that these are limits not targets (we’d expect the majority to be answering in 20-50s).
At each such station you’ll be given the map bundle (make sure that you can see all the numbers down the side as that shows they are in the correct order) and shown the 6 kites. You’ll then be instructed “Your time starts NOW” at which point you should remove the cover sheet and place it underneath the other maps (do not drop your maps) and answer the first problem, you then repeat until you have answered all problems. Answering after you have started turning to the next map or saying anything other than Alpha/Bravo/Charlie/Delta/Echo/Foxtrot/Zero will result in an X for your answer.
There are two accessible aspects of such stations that we could do without our Marshals having to learn and cope with if no-one requires them. If you are really keen to use one of these alternatives then please contact the contact details at the top of this page.
- Loose vs bound maps: the maps come in a bundle of a cover sheet + 5 (for TempO) or 3 (for TCs) maps. Most people use them “loose”, but as we are an accessible sport and some people have problems gripping and holding we also usually offer the option of “bound” where they are tied together at the top of the maps using two treasury tags.
- Some people can’t talk or forget that the name of “A” is “Alpha” - these will appear for you below the map so you can tell the Marshals that you want to point. Other folks find precision pointing hard and so prefer some larger boxes to point at with their whole hand. These can be provided on request, but we must know beforehand so we can make the arrangements.
If either of these options are requested in advance then when you are next in the queue and the person shouts “Next” you must go forward a little and shout “Bound” and/or “Point” and return to the queue so they can make the additional preparations. When they shout “Next” again you proceed as above.
Complaints & Protests
Although there are no detailed British rules regarding complaints, for JK2025 we will be trying to match the IOF system. This means that any potential complaint should be discussed with the Organiser who will try to resolve it. A written complaint can be submitted if the competitor feels that this is appropriate. To be considered, the latest that a written complaint may be submitted is 15 minutes after the event results have been declared final. Following appropriate consultation, the Organiser will provide an answer and, if the complainant still wishes to pursue the issue, they must then submit a written ‘protest’. This will then be considered by the Jury who will make a final decision.
Results & Prizegiving
Results will be published on the TOP website and linked via the JK Results page.
Medals and a small prize will be presented to the top 3 in each of Elite Open, Elite Physically Challenged and Elite Junior. The prizegiving will take place for both days once the Day 2 results are finalised, likely between 17:30 and 18:00.
Friday 18th April 2025
Crookes Valley & Weston Park
Format and Venue
TrailO on Day 1 will be a Combination TrailO with TempO followed by a PreO Sprint (A/Z) course whose results will be combined for the Day 1 classification (TempO time taken + 30s for each TempO error + 60s for each PreO error).
The Event Centre is at Weston Park Museum. You must enter using the main South entrance (pictured - ice cream van not guaranteed) on the A57, you are not allowed to go along Mushroom Lane. Once inside the park you may walk around the vicinity of the East side of the museum building, but please don’t head further away into the park. As there is minimal shelter, in bad weather there is a portico area on the E side of the building which you could use, but unfortunately it is not accessible for all. For accessible shelter I suggest heading into the museum and making use of the cafe facilities but please avoid getting in the way of users of their cafe or the museum itself and don’t block entranceways.
Please note that you MUST NOT use Crookes Valley Road while travelling to the event whether by public transport, car or on foot - it is the edge of the previously advertised embargo, but please do not use it. Plan your route to the Event Centre to avoid it and Mushroom Lane however, as much of this parking is to the NW of the area then you are permitted to walk along Northumberland Road, but please don’t go hunting for kites.
W3W: battle.pines.ever
Parking
There are some disabled spaces for those Pclass competitors with “blue badges” available a short distance away from the event centre (see Event Details when available). We also have 4 more spaces reserved for Pclass who don’t possess a “blue badge”. Everyone else, including helpers, will likely have to use paid parking as the surrounding area is mostly resident permit and/or 4-hour max paid parking Mon-Sat (BH flexibility is not extended to Good Friday).
Free parking may be hard to find as many of the nearby streets are Permit Holders (residents) only, max 4 hours and/or payment required. Note that although several of the signs say “except Bank Holidays” there often seems to be a “not Good Friday” added, so be careful. The best chance is probably on the streets to the South of School Road, for instance Glebe Road. Paid for parking is available at Q parking. Those also doing the JK Sprint should probably park in the west part of Sheffield to minimise the walk between event centres.
To make sure that your vehicle is not subject to the Clean Air charge (and it does vary from city to city) make sure you check the Sheffield CAZ website.
Public Transport from Sheffield City Centre
Yellow or blue tram line – get off at University of Sheffield stop
51, 52, 52a buses get off at Western Park / Childrens Hospital
DO NOT USE buses 10, 95, 95a, 95b, 95s, 97 or 98 unless you get off before they get to Crookes Valley Road.
Terrain
University Campus and surrounding park terrain, tracks are tarmac.
Map
Map: ISSprOM 1:4,000 map with 2.5m contours newly revised for TrailO by Ian Cooper (South Yorkshire Orienteers). Special symbols are shown in the key below.
Courses
Competitors will do the TempO first followed by the PreO Sprint. At registration you’ll receive your control card on which will be printed a route map to show you where to walk. Make sure you stop when you reach the stop sign and wait for the marshals to shout “Next”. The route map will show you where to head for the PreO Sprint and give further instructions for returning to the Event Centre.
Total distance from leaving the Event Centre till returning having done both courses is about 1.7km with 45m of climb and descent.
TempO part
Elite and Standard: 4 TempO stations of 5 problems for both Standard and Elite. As is usual for TempO, zeroes will be possible on both courses. If you are unaware of how a TempO station works, please ask at Registration and someone should be able to explain.
Note that there is a variation in routes for Pclass and Open for station 1 (because of steps on the more direct route). Try and avoid blocking the pavement for this station.
PreO Sprint part
All controls in both courses are either A (correct location) or Z (wrong location).
Elite: 18 A/Z controls, Open time limit 20 minutes (based on 60s per problem + 60s per 60m of course distance) and Pclass 25 mins.
Standard: 12 A/Z controls, Open time limit 20 mins (based on 90s per problem + 60s per 60m of course distance) and Pclass 25 mins.
Starts
Courses will start once course officials are in place. As most of the TempO marshals are running the FootO and then need to do their own TempO, the first (non helper) start is expected to be around 14:00. We’d encourage you to get to Event Centre early as we have a lot of competitors to get through the TempO and there is no point in you all arriving at 16:00 and we don’t want folks finishing in the gloom. You can always have a look around the museum while you wait or use their cafe.
Make sure you collect both your Control Cards from the Event Centre before setting off.
Jury
Tom Dobra (TVOC), Ben Kyd (MDOC), Iain Phillips (LEI); reserve Wilbert Hollinger (LVO)
Officials
- River Edis-Smith SYO (Planner)
- Christine Roberts (Controller)
- John Kewley (Organiser, Co-planner)
Saturday 19th April 2025
Hesley Wood
Format and Venue
Day 2 TrailO will be a classic PreO course based at Hesley Wood Scout Activity Centre.
Address: White Lane, S35 2YH
GR: SK358970
The event centre will be in the Andy Moore building (see photo)
Please note that anyone not pre-entered (for instance EOD or family members travelling with you) will need to enter their details on a sign-in sheet.
Parking
There should be plenty of parking at the venue as there is an overflow area shortly after turning into White Lane on the right as well as the main area. Some may however fancy the walk from the JK Middle car parking a bit over 1km walk away. Please park at the NW part of the main car park to leave space for Pclass competitors closer to the Andy Moore Building.
Terrain
Woodland terrain, tracks have a predominantly hard surface, but might be a little soft in places if there has been a lot of rain. One section of the course leaves the main track (bordered by tape on the ground and dashed lines on the course map - see map segment earlier), but the surface should be firm enough for wheelchairs.
Map
We have a newly produced ISOM 1:4,000 map with 2.5m contours adjusted for TrailO by Dave Peel (Peel Land Surveys). It uses brown-infill for the forest tracks that you are permitted to use. Telegraph poles are not mapped.
Retaining walls (ISOM 513.2) are used for walls higher on one side than the other so are not quite one-sided.
The ISOM 528 “Prominent line feature” symbol is used for a toboggan track.
There are 2 ISOM 524 “High Tower” symbols close together in the SW of the map. These are I believe mobile phone towers. The NW one has been lying flat on the ground nearby so we don’t know if it will re-appear or not in time for JK2025.
Courses
Courses are subject to final vegetation checks (for visibility of terrain and kites) just before printing. Course lengths are approximately 700m (1100m total including distance to start, between finish and TCs and back to Assembly). Both courses have a time control at the end of the course on the walk back to Assembly. Elite have an additional time control part-way round.
On Elite there will be a one-way gate (see section on Course Markings above). You must punch all previous controls before entering it. Control cards may be checked - there is a helpful red line on your control card corresponding to the one-way gate. Standard class will see the one-way but can ignore the sign/lines on the ground and the red line on their control card.
Those with the same number of correct controls will be ranked on the total time at the Timed Control(s) after applying any penalties.
A one point penalty for every 5 minutes (or part of) late will apply on each course.
PreO (Standard Class)
18 controls with a single 3 problem Time Control (no zeroes).
Zeroes will only be possible on the single kite controls labelled “A” (also known as A/Z controls) in column 2 of the control descriptions; controls labelled “A-B”, “A-C” etc. will not have Zero as an answer on the Standard course - you must select one of the kites.
The Standard class can ignore the tapes blocking the main path just before and after the Elite’s first time control (with corresponding Part 1 Finish and Part 2 Start - they won’t be corresponding bars on their map).
PreO (Elite Class)
28 controls in 2 parts with a 3 problem time control between the parts and another after the course. You must remember to punch the Finish at the end of part 1 and re-start at the part 2 Start after the first time control.
Normal rules apply so there will be no Zeroes at Time Controls, but any control on the Elite course has the potential to be a Zero.
Starts
Courses will start once course and officials are in place. As some of the officials are running the FootO it is hard to be precise, but is hoped to be around 13:30. Make sure you collect your Control Card from the Event Centre.
Jury
Charles Bromley Gardner (BAOC), Colin Duckworth (HALO), Graham Urquhart (OD); reserve Wilbert Hollinger (LVO)
Officials
- John Kewley (Planner and Organiser)
- Christine Roberts (Controller)
- River Edis-Smith SYO (Co-planner)
General Information about TrailO
Trail Orienteering is an orienteering discipline testing map reading in natural terrain. The discipline has been developed to offer everyone, including people with limited mobility, a chance to participate in a meaningful orienteering competition. Manual or electric wheelchairs, walking sticks, and assistance with movement etc. are permitted as speed of movement is not part of the competition. Trail orienteers must identify on the ground control points shown on the map. As this is done from a distance, both able-bodied and participants with disabilities compete on level terms. Proof of correct identification of the control points does not require any manual dexterity, allowing those with severely restricted movement to compete equally. Most trail orienteering events have classes open for everyone. Athletes who cannot participate on reasonably equal terms in the sport because of a functional disadvantage due to a permanent disability are eligible for the physically challenged class.
Any interested newcomers who have not taken part before can find more information on the British Orienteering TrailO webpage which explains the way the competitions work. All events will be suitable for able-bodied and disabled participants including wheelchair users, and the Elite class will have a separate classification for competitors who meet physically challenged criteria.