Swedish Champs Sprint: Map, O-Route Challenge and Results

Jan Kocbach April 17, 2011 Orienteering News Comments Off on Swedish Champs Sprint: Map, O-Route Challenge and Results

Truly international results in the Swedish Champs sprint today. Victories went to Sweden – Jerker Lysell and Helena Jansson. Many non-Swedish runners were high up on the results today ; Scott Fraser (GBR) in 2nd, Øystein Kvaal Østerbø (NOR) in 4th, Graham Gristwood (GBR) in 5th, Frederic Tranchand (FRA) in 6th, Julian Dent (AUS) and Oleksandr Kratov (UKR) in 8th, Maja Alm (DEN) in 2nd, Eva Jurenikova (CZE) in 4th and Signe Søes (DEN) in 5th.

Read on for results, map and O-Route Challenge.

Results and map/GPS tracking

Results Men 21
1. Jerker Lysell Rehns BK 14:04 +00:00
2. Scott Fraser Södertälje-Nykvarn OF 14:13 +00:09
3. William Lind Malungs OK Skogsmårdarna 14:16 +00:12
4. Øystein Kvaal Østerbø IFK Lidingös Skid o OK 14:19 +00:15
5. Graham Gristwood Södertälje-Nykvarn OF 14:29 +00:25
6. Frédéric Tranchand OK Hällen 14:32 +00:28
7. Mattias Karlsson Emmaboda Verda OK 14:33 +00:29
8. Julian Dent Malungs OK Skogsmårdarna 14:35 +00:31
= Oleksandr Kratov OK Orion 14:35 +00:31
10. Erik Johansson Göteborg-Majorna OK 14:39 +00:35

Results Women 21
1. Helena Jansson Leksands OK 14:11 +00:00
2. Maja Alm Ulricehamns OK 14:39 +00:28
3. Annika Billstam IFK Lidingös Skid o OK 15:01 +00:50
4. Eva Jurenikova Domnarvets GOIF 15:08 +00:57
5. Signe Søes IFK Lidingös Skid o OK 15:10 +00:59
6. Lena Eliasson Domnarvets GOIF 15:25 +01:14
7. Lilian Forsgren OK Tisaren 15:37 +01:26
8. Lina Strand Göteborg-Majorna OK 15:40 +01:29
9. Elin Dahlstedt-Tysk Leksands OK 15:52 +01:41
10. Linnea Lidström OK Kolmården 16:03 +01:52

O-Route Challenge

About the O-Route Challenge: The Route to Christmas series has been very popular here at World of O the last years, and there have been many requests to offer some of these “O-puzzles” throughout the year. I have therefore decided to launch a similar series of “O-puzzles” throughout the rest of the year – at irregular intervals – named “O-Route Challenge”. I do not promise a lot of posts, but if time allows and I see interesting routes I will post them here.

The leg is as usually first provided without routes – you may take a look at it and think about how you would attack this leg (if the image is too small, you may click on it to get it larger).

Webroute

Next you can draw your own route using the ‘Webroute’ below. Think through how you would attack this leg, and draw the route you would have made. Some comments about why you would choose a certain route are always nice for the other readers.

Discussion

When I first saw this leg, I was quite sure that the left option would surely be the best – and watching the GPS tracking I was surprised that there was a quite even distribution of runners on the left and right variant. If you look at the color-route plot below, you can see that there was also a quite even distribution in fast times for runners taking the left and right option (green is fast, red is slow). Thus my conclusion is that left and right are almost equal. Taking a look at the dot-plot at the bottom of this article, I saw that the reason for the left option not being faster is that there are many curves on this route, whereas for the right route there is more straight running. Anything to add? Please add a comment below (I wasn’t there, so I might have missed some points here).

Note that times are off the GPS, so there might be some inaccuracies at the start/end of each route/track. Use the split times given only as “guidance”.

Figure: Routes are colored according to total time on the leg – green is fast, red is slow.

Figure: Direct comparison between routes. Points along the routes at which the runners have used the same time are connected – thus you can easily see where one route is faster/slower than another.