See notes at foot of table if you're interested in some background info.
Rank | Race | Av Gain (m/mile) | |
---|---|---|---|
1 | Keswick HM | 32.50 | |
2 | Goring & Woodcote 10k | 21.68 | |
3 | Hampstead Midsummer 10k | 21.52 | |
4 | Great Langdale 10k | 21.40 | |
5 | Croydon 10k | 15.48 | |
6 | Roding Valley HM | 14.45 | |
7 | St Albans HM 2008 | 14.38 | |
8 | Watford HM | 14.27 | |
9 | Flitwick 10k 09 | 14.18 | |
10 | Stamford 30k | 13.53 | |
11 | St Albans MWL 7M | 13.30 | |
12 | Doug Anderson Mem' 5k (Bedford) | 13.29 | |
13 | Serpentine LFOTM 5k | 13.28 | |
14 | Regents Park 10k | 13.18 | |
15 | Bury 20 | 13.03 | |
16 | NHRR MWL 10k Stev | 12.29 | |
17 | Buntingford 10 07 | 12.29 | |
18 | Bish MWL 10k | 11.81 | |
19 | Oakley 20 | 11.44 | |
20 | Barnes Green HM | 10.93 | |
21 | Woburn 10k | 10.77 | |
22 | Whipsnade 10k | 10.72 | |
23 | FVS 3k Relays | 10.08 | |
24 | Stevenage 5k (2008) | 9.88 | |
25 | Bracknell HM | 9.53 | |
26 | Sandy 10 09 | 9.37 | |
27 | WGC 10M | 9.09 | |
28 | Stev HM 2008 | 9.06 | |
29 | Bedford HM | 8.94 | |
30 | Springfield Striders 5M | 8.74 | |
31 | Horndon 10k | 8.67 | |
32 | Billericay 10k | 8.46 | |
33 | NVH Ferry Meadows 5k | 8.43 | |
34 | FVS MWL 10k | 8.05 | |
35 | Harlow 10 | 7.71 | |
36 | WGC MWL 10k | 7.61 | |
37 | Swineshead 10.29 | 7.47 | |
38 | Chelmsford 10k | 7.21 | |
39 | Breckland 10k | 7.10 | |
40 | Standalone 10k | 6.98 | |
41 | Leicester HM 07 | 6.83 | |
42 | Reading HM | 6.67 | |
43 | Chessington 10k | 6.44 | |
44 | Stevenage 5k (2007) | 6.24 | |
45 | WGC MWL 5 | 6.14 | |
46 | Shinfield 10k (nr Reading) | 5.89 | |
47 | Bearbrook 10k | 5.66 | |
48 | Milton Keynes (Caldecott Lake) 5k | 5.66 | |
49 | St Neot's HM | 5.50 | |
50 | Wokingham HM | 5.27 | |
51 | Cranfield 5 | 5.08 | |
52 | Leighton 10 | 4.96 | |
53 | Wolverton 5 | 4.76 | |
54 | NSPCC Milton Keynes HM | 4.37 | |
55 | Nike+ Milton Keynes HM | 4.33 | |
56 | Nene Valley Harriers 10 | 4.25 | |
57 | Felsted 10k (nr Braintree) | 4.06 | |
58 | Silverstone HM | 3.53 | |
59 | Fred Hughes 10 (09) | 3.43 | |
60 | Silverstone 10k | 2.80 | |
61 | Hatfield Broadoak 10k 06 | 2.77 | |
62 | Lea Valley 10k | 2.43 | |
63 | Grunty Fen HM | 1.83 | |
64 | Langtoft 10k (Market Deeping) | 1.00 | |
65 | Andy Reading 10k | 0.97 | |
66 | Staines 10k | 0.90 |
Note 1: I should state at the outset that it is generally accepted that you lose more time going up a slope of a given distance/gradient than you make up going down it. This applies to runners of all abilities, but the faster/better hill-trained you are, the less the effect (but an effect nonetheless). That is the basis of my ranking table and why it measures average metres gained per mile. Most courses start and finish at about the same height (net elevation change = about zero), but my formula makes allowance for courses where this is not the case too. A very undulating course with a significant net elevation loss between start>finish will get a lower score for example.
Note 2: The jury' s still out (in my head!), but it may be that those courses that are gently undulating (say score between 3-8) are faster than dead-flat ones. This may just be that the brain prefers a little variation or perhaps that the leg muscles do too?
Note 3: another possible factor (but difficult to measure) is where the up-hill sections are as well as how often and how steep on average (the latter being what my table reflects) . One seemingly counter-intuitive POV is that hills near the start are worse because, being fresh, you may apply too much effort and not notice the effects until later in the race. A long (in context of race-distance) downhill section to the finish can also play a part.
Note 4: Most feedback I've had is that this table is a fairly accurate guide to how races 'feel'. You could also use it to make more sensible comparisons between race times. For example, a time of 41:30 at Flitwick 10k would almost certainly be a 'better' performance than 41:15 at Hatfield Broadoak.
I posted about your previous table based on MotionBased but didn't realise you'd done this one. As I said I don't think these metres per mile figures are accurate. E.g. according to SportTracks Hatfield Broad Oak is 83% flat but the reality is it is almost all undulating and you do notice it in the legs when you are on the up. All you have to do it look at the elevation profile and see that the first rise starts at 77m and peaks at 97m and the second starts at 72m and peaks at 88m. Even ignoring all the other smaller unduations that is still 36 metres yet SportTracks gives 17.4m. http://utrack.crempa.net/ gives the total climbing as 60m which I is technically accurate. If you measure each incline and add them up it come to 60m. I'd rather use that raw figure than second guess what gradients are significant.
ReplyDeleteRick,
Garden City Runners
Hi Rick - thanks for reading!
ReplyDeleteYou do need to bear in mind the following however...
1. The default elevation smoothing setting on Sporttracks does tend to flatten out lots of small undulations. However, I minimise this smoothing setting on all my ST data.
2. My scores are average metres gained per mile, so it's not just the climbing that is taken into account. For example, in a pyramid-shaped 10k with 60m up then 60m down, you'd get an average metres gained/mile score under my formula of only 9.66. It's a measure of average difficulty.
3. Everyone I know who has done Hatfield Broadoak 10k thinks it's a fast course. This seems to be reflected in my rankings (as are many other 'fast' courses). Similarly, I don't think there are any races at the top of my list that are considered either flat or fast.
4. I had a look at the http://utrack.crempa.net link. It would be interesting to run my all ST data through this, but this would take a considerable amount of time! No doubt the absolute scores would change, but I suspect the relative scores between races would remain broadly in proportion (as they did when I changed from Motion Based to Sporttracks).
Cheers
NHRR Statto
PS - I exported 5 races from ST to gpx and ran through the http://utrack.crempa.net/ cruncher. As I suspected, the resulting scores through my formula are higher (as teh total elevation gain/loss numbers are higher), but the relationship between the respective race rankings is little altered.
ReplyDeleteRace..................uTrack..ST
Flitwick 10k..........18.51...14.18
WGC MWL 10k...........12.87....8.30
Hatfield Broadoak 10k..8.85....2.77
Silverstone 10k........8.21....2.85
Staines 10k............5.95....0.90