Frosty Posted February 16, 2016 Posted February 16, 2016 There are 6 steps involved in the seeding process: Choosing the weightings and penalties of the different ridesEstablishing a base eventFor each ride, adjusting the winner’s time and calculating its difficulty relative to the base eventCalculating an index for each rider for each eventChoosing the best index for each riderRanking In more detail: 1. Choosing the weightings and penalties of the different ridesIf you have done any event in the last 2 years where the result is available on our system, it will be sufficient to get you a seeding index. In other words, we will use your best single index from any event. There is no use of a weighted average as has been the case in the past.In order for a route (distance within an event) to count at all it needs to meet the following criteria:ROAD EVENTS 80km and over – no climbing requirement, no other penalty; or750m of climbing, regardless of distance, no other penalty; or60km with 15% penalty (added to your seeding index) – no climbing requirement; or400m climbing with 15% penalty, no distance requirementMTB EVENTS 50km and over – no climbing requirement, no other penalty; or750m of climbing, no other penalty; or35km with 15% penalty – no climbing requirement; or400m with 15% penalty, no distance requirementIn addition the following must apply:Must be a chip timed event Only your best result will be used for seeding purposes, so having a few slow results due to mechanical problems or just having a fun ride won’t affect your seeding for the next event, since we only use your best available result.2. Establishing a base eventStep 3 below relies on us being able to compare the difficulty of different events. And for that we need a base event. To enable us to do the calculation equally well for all events across the country, we first perform steps 3 and 4 below for the latest Momentum 947 Cycle Challenge, as well as the Cape Town Cycle Tour, and then use the better of the two indices as our theoretical base event. The result is that both these events are treated as being slightly easier than the theoretical base that we use in practice. 3. For each ride, adjust the winner’s time and calculate the difficulty (beta)Some races have a better quality of field than others. For instance, some events may have visiting pro riders participate and some events (especially shorter routes) have no top riders present. So we adjust the winner’s time to take this into account.It would also be unfair to get the same seeding for being the same percentage behind the winner in a fast, flat ride as in a hilly, difficult ride. To allow for this we calculate a difficulty or “beta” factor. This makes the gap between the winner and you count less in difficult conditions and more in easy conditions.First, an extract is done of all the riders who did the event in question, as well as the base event. Every rider with an index better than 100 is taken for this calculation. The assumption is made that the same riders should have the same index for both events, so the winner’s time of the event is now adjusted and the “beta” is calculated to achieve this.In statistical terms, a linear regression is performed for the event relative to the indexes of the people in the event who also rode one of the base events. This determines how much the winner’s time should be adjusted and what the difficulty factor “beta” should be. There is no subjectivity in this process – it is an automated calculation without human intervention.In layman’s terms, the adjusted winner’s time should be roughly the time that the winner of an event would have done if the winner of the one of the base events had ridden that event at the same effort. The beta factor will be 1 if the event is as difficult as (i.e. on par with) the base event, less than 1 if it is easier (eg flat and fast), and more than 1 if it is harder (eg hilly or very windy). 4. Calculating an index for each rider for each of the different seeding ridesThis calculation is done for every result in an event that counts for seeding.The formula is: (your time / adjusted winner’s time – 1) / beta value and then expressed as a percentage.To the answer you get for each result, you need to add the following:If the event took place more than 5 months ago, 1% is added for each further month that has elapsed (up to 5 years after which it will no longer be used)If the event is a short route or has minimal climbing, a further 15% may be added.So if the adjusted winner’s time is 3:20 and your time is 4:00, and the event took place 11 months ago and is the same difficulty as one of the Base Events then your index for the event is (240/200 – 1) = 0.2 = 20%. Plus 6% for the time elapsed gives 26%. 5. Taking your best resultYour indices for all the events you have ridden are sorted from best to worst. If you have indexes of 26, 28 and 51, we will use your best index (26 in this case). 6. Ranking Everyone is then ranked according to their index overall, within their gender, and within their age group.
Frosty Posted February 16, 2016 Posted February 16, 2016 They should make submitting results to a "seeding ladder" a condition for sanctioning of the event. Everybody who has a sanctioned event can use the results... easy, or just theory? Can we do something to help them do it?Easy? Yes Can we do something? Yes When? Give me time to get the next race (on Sunday), plus the post mortem, out the way. And also allow everyone time to get over Fun Ride World Champs.
Bat Posted February 16, 2016 Posted February 16, 2016 Geraldm24 I just looked at my PPA seeding after good times for the fast one and R4s (obviously to my capabilities) I am doing the short Carnival Macsteel MB race this weekend with my club members. But I noticed that with last years race my seeding index was very poor, obviously being penalized for the short distance. To keep my seeding at a better index, will it not be better to then race without a chip, and just do it for fun as it was intended to be. This I would like to know for all possible future fun rides, which could effect my seeding.
Frosty Posted February 17, 2016 Posted February 17, 2016 Geraldm24 I just looked at my PPA seeding after good times for the fast one and R4s (obviously to my capabilities) I am doing the short Carnival Macsteel MB race this weekend with my club members. But I noticed that with last years race my seeding index was very poor, obviously being penalized for the short distance. To keep my seeding at a better index, will it not be better to then race without a chip, and just do it for fun as it was intended to be. This I would like to know for all possible future fun rides, which could effect my seeding.Hi Bat, you should look to target one or two races every year that will give you a good seeding, preferably the longer distance events. They (Racetec) take your best result, and ignore the rest so if you ride with a chip and have a very slow/leisurely ride, it won't affect the best result. Make sure you do at least 1, maybe 2, per year.
Dragon Posted February 17, 2016 Posted February 17, 2016 All my seedings have a 15% penalty from today? These results include 94.7 (2015), Berge & dale (2016) and Dischem ride4sight (2016). How can I get penalties on races I have done this year that's more than 100kms and more than 750m of climbing?
Veebee Posted February 17, 2016 Posted February 17, 2016 All my seedings have a 15% penalty from today? These results include 94.7 (2015), Berge & dale (2016) and Dischem ride4sight (2016). How can I get penalties on races I have done this year that's more than 100kms and more than 750m of climbing? clearly there's a women involved with the seedings...
HBO Posted February 17, 2016 Author Posted February 17, 2016 All my seedings have a 15% penalty from today? These results include 94.7 (2015), Berge & dale (2016) and Dischem ride4sight (2016). How can I get penalties on races I have done this year that's more than 100kms and more than 750m of climbing? Mine is the same. I assume it is a glitch that will hopefully corrected soon.
Dexter-morgan Posted January 25, 2017 Posted January 25, 2017 Does anyone perhaps have a GPX file for this race comming up soon, thank you in advance.
Long Wheel Base Posted January 25, 2017 Posted January 25, 2017 Does anyone perhaps have a GPX file for this race comming up soon, thank you in advance.Excuse my ignorance, What would that be? How would I know if I have one? Have done the race every year since long ago. Maybe I can help, unless someone a lot more pc literate can help.
HBO Posted January 25, 2017 Author Posted January 25, 2017 Excuse my ignorance, What would that be? How would I know if I have one? Have done the race every year since long ago. Maybe I can help, unless someone a lot more pc literate can help.It's a Grand Prix X-rated file, i.o.w. a picture of you in the starting pen with a very sexy lady in a very sexy number on your left holding an umbrella, another sexy lady in a sexy number behind you holding your bike and another sexy lady on your right holding a tray with energy drink and jelly babies If do happen to have such a file/ files please do share.
Dexter-morgan Posted January 25, 2017 Posted January 25, 2017 Excuse my ignorance, What would that be? How would I know if I have one? Have done the race every year since long ago. Maybe I can help, unless someone a lot more pc literate can help.You could export it from Garmin or Strava if you have recorded the ride with any of such devices, thanks for the reply.
HBO Posted January 25, 2017 Author Posted January 25, 2017 Hi Dexter, I've tried to reply on the pm, but for some reason I can't. As you could've figured from my comment I'm one of those computer illiterate ones I have no idea how to change the date on the title. perhaps we can ask admin or just start a new one for 2017?
Long Wheel Base Posted January 25, 2017 Posted January 25, 2017 Hi Dexter, I've tried to reply on the pm, but for some reason I can't. As you could've figured from my comment I'm one of those computer illiterate ones I have no idea how to change the date on the title. perhaps we can ask admin or just start a new one for 2017?Yeah lets maybe try change this ones date?
Frosty Posted January 25, 2017 Posted January 25, 2017 It's a Grand Prix X-rated file, i.o.w. a picture of you in the starting pen with a very sexy lady in a very sexy number on your left holding an umbrella, another sexy lady in a sexy number behind you holding your bike and another sexy lady on your right holding a tray with energy drink and jelly babies If do happen to have such a file/ files please do share. I have a selfie with Evan, that must count for something. You could export it from Garmin or Strava if you have recorded the ride with any of such devices, thanks for the reply.You can also search Strava for the activities called Ride for Sight, and download the GPX file relative to the speed you want to ride at.
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