All posts by Matthias Mahr

West Norwood Street-O Results

Here are the Results from the first Street Orienteering race of the season held last night around West Norwood.

Many thanks to Vinh-Phuong Hoang for planning one of the most fiendish courses of the last few years, keeping runners on their toes the entire time! In the end, James Fraser won by a whisker with the first 5 men separated by only 16 points, while Rebecca Dal Bon was top woman.

Vinh says: “I wanted to bring people to an area which we haven’t orienteered at much before. Hopefully people liked it. I planned the course to force people to run up as many hills as possible and hopefully people were compensated with good views as a result, particularly over Central London. Many thanks to everyone who helped out and the pub for having us. We had a few new faces today- perhaps we’ll see you at the next races too.”

Vinh will bring uncollected maps to the next race, organised by our friends at London Orienteering Klubb around London Bridge on Tuesday 9 October (details to follow). There is also lost property of one male black belt, which you can claim by emailing me as below.

Matthias Mahr, Street-O coordinator

West Norwood Street-O, Tuesday 11 September

Join us for the Season Opener of the 2018-19 season of evening street orienteering races around London.

On Tuesday 11 September, we’ll have an evening of checkpoint hunting & post race chat, food and drink in West Norwood – a brand new area for Street racing!

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Like all our Street-Os, this a public race – all are welcome. Please RSVP to the event via Facebook to let us know you are coming – you can also see who else is coming here and post queries. If you are not on Facebook, please let the organiser below know you are coming so that the correct number of maps are printed.

This event will use electronic timing for the start and finish – please bring your SI card if you have one, or we’ll lend you one on the night!

Race HQ

The race will be based at The Great North Wood pub right next to West Norwood train station. Please do stay after the race for a drink, a bite to eat and to compare routes with your friends

LocationWest Norwood
Address3 Knight\
Latitude/longitude51.4315, -0.1039
OS grid referenceTQ319720
MapsGoogle Maps, OpenStreetMap

Getting There

The Great North Wood is at 3 Knights Hill, West Norwood, London SE27 0HS.

It is right next to West Norwood train station or a 15 minute walk from Tulse Hill train station. Numerous bus routes also pass close to the pub. See www.tfl.gov.uk for further details. Trains to West Norwood from Victoria take 22 minutes, and fast trains from London Bridge take 23 minutes.

Race Details

Entry fees for 2018-19 are still being confirmed but it won’t be more than £3 for SLOW and LOK members, students and juniors or £5 for others.

RegistrationBetween 1815 and 1930
Start TimesBetween 1830 and 1930

The Street-O format has clues located at various points on a map. You have 60 minutes to visit as many of these as possible, in any order, and return to the finish. This guide provides general information about street orienteering.

Don’t forget to bring a pen to write down your answers to the clues as you go around, an SI card if you have one, and a watch so that you aren’t late back! You may find a torch/head-torch and compass useful too, although many don’t take one and it should be light enough for everyone for this event.

All competitors take part at their own risk. You MUST be over 16 to take part in this event, unless you are accompanied by a parent or guardian. This is a condition of our insurance.

Results will be available on the SLOW website shortly after the event. Check the 2018-19 series page for more information.

Organiser/Planner: Vinh Hoang, 

Street-O Series 2018-19

Hello and welcome

You are all very welcome to the new season of evening Street Orienteering Races. These are friendly, easy events open to everyone and based at a pub around London. You have one hour to find as many clues as you can – race, run or walk as you wish!

Event Schedule

The events take place in the evening, on the second Tuesday of each month from September to May. The full schedule for 2018-19 is set out below.

DateVenueOrganiserDetailsResults
11 September 2018West NorwoodVinh HoangDetailsResults
9 October 2018London BridgeElaine Battson (LOK)
13 November 2018TeddingtonDave Wright
11 December 2018West HampsteadTodd Fallesen and Tessa Bertran
8 January 2019EalingKeith Davies
12 February 2019TBCTBC (LOK)
12 March 2019BrentfordDmitry Adamskiy
9 April 2019WandsworthRebecca Slack
14 May 2019TBCTBC

Full details on each event are posted on the SLOW website and facebook a few weeks before the event. If you would like to contact any of the organisers, or have any questions, email the series coordinator Matthias Mahr at to be put in touch.

How it works

Each event is scored separately and you have an hour to get as many points as you can. If you’re over an hour, you lose points so don’t be late. You don’t need any specialist equipment although a pen, watch and possibly torch can be helpful.

League series points are scored at each event, with 100 for the winner, 99 for 2nd place, 98 for 3rd, down to 1 point for everyone who finishes 100th place or lower. The organiser of the event scores points equal their best at any other race in the season. Men and women are included in the same combined results table for each race, and overall, but women’s positions will be highlighted in the results.

The overall results will be based on your best 5 scores in the series, and there will be prizes for the leading man and leading woman over the series. In the event of a tie, head-to-head results will be used.

General Details about our Street-O Races

See here

Chelsea Street-O Results, Tuesday 8 May

With apologies for the delay, here are the Final Results from Tuesday’s final Street-O of the season. Over 100 runners enjoyed Steven’s courses taking in Chelsea, Earl’s Court and, as a bonus, Brompton Cemetery!

We now also have the Final Series Results, have a look at your result! We had some really tight results overall, with the top 3 Men only separated by 1 point each!

I look forward to welcoming you again to another series starting in September.

Matthias Mahr, Street-O coordinator,

Chelsea Street-O, Tuesday 8 May

Join us for the SEASON FINALE of the 2017-18 season of evening street orienteering races on Tuesday 8 May in Chelsea, West London.  Join us for an evening of checkpoint hunting & post race chat, food and drink!

The area includes the historic, Grade I listed, Brompton Cemetery. The cemetery is just to the west of The Pembroke, our base for the evening, and is open until 8pm. Those starting after 7pm should plan their routes accordingly to avoid the disappointment of missing out on this unique area!

Series prizes will be presented on the night.

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Like all our Street-Os, this a public race – all are welcome. Please RSVP to the event via Facebook to let us know you are coming – you can also see who else is coming here and post queries. If you are not on Facebook, please let the organiser below know you are coming so that the correct number of maps are printed.

This event will use electronic timing for the start and finish – please bring your SI card if you have one.

Race HQ

The race will be based at The Pembroke in Chelsea. Please do stay after the race for a drink, a bite to eat and to compare routes with your friends

LocationChelsea
Address261 Old Brompton Road
Latitude/longitude51.4888, -0.1915
OS grid referenceTQ257782
MapsGoogle Maps, OpenStreetMap

Getting There

The Pembroke is at 261 Old Brompton Road, SW5 9JA – a 5 minute walk from both Earl’s Court and West Brompton underground stations. Numerous bus routes also pass close to the pub. See www.tfl.gov.uk for further details. .

Race Details

Entry fee is £2 for SLOW and LOK members, students and juniors; £4 for others.

RegistrationBetween 1815 and 1930
Start TimesBetween 1830 and 1930

The Street-O format has clues located at various points on a map. You have 60 minutes to visit as many of these as possible, in any order, and return to the finish. This guide provides general information about street orienteering.

Don’t forget to bring a pen to write down your answers to the clues as you go around, an SI card if you have one, and a watch so that you aren’t late back! You may find a torch/head-torch and compass useful too, although many don’t take one and it should be light enough for everyone for this last event.

All competitors take part at their own risk. You MUST be over 16 to take part in this event, unless you are accompanied by a parent or guardian. This is a condition of our insurance.

Results will be available on the SLOW website shortly after the event. Check the 2017-18 series page for more information.

Organiser/Planner: Steve Clelland, 

Isle Of Dogs Street-O Results

In world record time, here are the Race Results from tonight’s Isle of Dogs Street-O, and the Series Results have also been updated.

Almost 100 intrepid racers made it out to Crossharbour to enjoy the course set by Anders on what was a nice evening. We have new faces as winners this time, with Graham Law scoring the most points on the night closely followed by James Lambert; and Emily Budd the leading woman closely followed by Alison Hawe.

I hope you can join us for the season finale in the Earl’s Court area on Tuesday 8 May – there’s still all to play for in the league including the overall winner’s title. Details to follow shortly.

Matthias Mahr, street o coordinator,

Isle Of Dogs Street-O Tuesday 10 April

The eighth race of the 2017-18 season of evening street orienteering races will be held on Tuesday 10 April, in East London’s Isle of Dogs – known to many from the City Race of a few years ago.  Join us for an evening of checkpoint hunting & post race chat, food and drink!

This event is on FacebookThis event is on Facebook. Say you are coming here!
This event is on AttackpointThis event is on Attackpoint. Say you are coming here!

Like all our Street-Os, this a public race – all are welcome. Please RSVP to the event via Facebook to let us know you are coming – you can also see who else is coming here and post queries. If you are not on Facebook, please let the organiser below know you are coming so that the correct number of maps are printed.

This event will use electronic timing for the start and finish – please bring your SI card if you have one.

Race HQ

The race will be based at The George in Crossharbour. This is managed by the excellent Hippo Inns so well worth a visit in its own right.

Please do stay after the race for a drink, a bite to eat and to compare routes with your friends

LocationIsle Of Dogs
AddressThe George, 114 Glengall Grove
Latitude/longitude51.4961, -0.0136
OS grid referenceTQ380793
MapsGoogle Maps, OpenStreetMap

Getting There

The George is at 114 Glengall Grove, E14 3ND. It’s opposite Crossharbour DLR station, which you can easily reach on the Bank or Stratford DLR lines.

Race Details

Entry fee is £2 for SLOW and LOK members, students and juniors; £4 for others.

RegistrationBetween 1815 and 1930
Start TimesBetween 1830 and 1930

The Street-O format has clues located at various points on a map. You have 60 minutes to visit as many of these as possible, in any order, and return to the finish. This guide provides general information about street orienteering.

Don’t forget to bring a pen to write down your answers to the clues as you go around, an SI card if you have one, and a watch so that you aren’t late back! You may find a torch/head-torch and compass useful too, although many don’t take one and it should be light enough for everyone for this last event.

All competitors take part at their own risk. You MUST be over 16 to take part in this event, unless you are accompanied by a parent or guardian. This is a condition of our insurance.

Results will be available on the SLOW website shortly after the event. Check the 2017-18 series page for more information.

Organiser/Planner: Anders Bank,

New Malden Street-O Results

(results updated 16/03 and series results added)

Here are the Final Results from last night’s New Malden Street Orienteering Race. Series Results have also been updated.

65 runners or groups tackled Bob and Bex’s fiendish course, where there were some big decisions to be made on which parts of the area to leave out.

Many of the runners with the highest scores had big time penalties, so the winner on the night was William White – by a single point – while Abi Weeds was fastest woman.

Next month we head east to the Isle Of Dogs so put Tuesday 10th April in your diary – details to follow shortly.

Any queries to