Held on (usually) the second Tuesday of every month between September and April/May, these events are night street orienteering. They are normally run from a pub so acts as a social where you can stay afterwards for a drink and meet up with club members.

Series organiser: Matthias Mahr


The Night-O series complements the Street-O series with races in parks. Head-torches are needed – and we have some you can borrow. Like the Street-O series, events run from a pub.

The 2017~18 series finished on 20th March 2018 with a mass start race in Richmond Park.

Series organiser: Don McKerrow



A series of four events held on Sunday mornings in January, April, July and October, these are 2-hour score orienteering events on bike. These events are run by London & Southeast Adventure Racers in affiliation with SLOW.

Series organiser: Nicki Adams

Park Race


Held fortnightly on Tuesday evenings between May and July in parks in London, these evenings consist of informal short orienteering races, and usually a pub social afterwards. There is normally a 3K and 5K course. Since 2010, similar events by other London clubs have been incorporated into the series.

Series coordinator: Fiona Tam

London City Race


SLOW’s annual urban race, based in and around the centre of London and attracting well over 1000 competitors.

Race director: Vince Roper

OK Nuts Trophy


SLOW’s premier terrain race, it has been organised by the club for the last 30 years.

Box Hill Fell Race


The Box Hill Fell Race is the most southerly event in the FRA calendar, and has been organised by the club since the early 1980s.

Series organiser: Andy Robinson

Surrey Hills Race

This hill race has been organised by the club for over 30 years.

Series organiser: Fiona Tam



The club has traditionally organised one event in the GLOSS (formerly FROLICS) series which takes place in London on summer weekends and is organised by London OK.  SLOW have won the London Bus Trophy several times.

Team captain: Peter Huzan

North Downs Way Relay

A one-day team relay, organised by Guildford Orienteers. SLOW traditionally enters a team and has often won the competition. More information (GO).

Team captain: Wizzo

Spring Series

A points handicap competition for club members, based on the results of four events put on by other clubs during the spring.

Series coordinator: Donna McCourt

Autumn Series

A points competition for club members, based on the results of four events put on by other clubs during the autumn.

Series coordinator: Paul Street

London's largest orienteering club. British Orienteering's Club of the Year 2013. CASC accredited.