|
JCapper Message Board JCapper 101
|
| Home |
Register
Log In |
| By | BRIS or TSN? What should I know about the difference? | |
| Jim the Tolerable 3/1/2009 5:19:36 PM | Is there a substantial difference in the data files? Also, the menus and pricing do not seem very intuitive for either site. Any advice regarding what to use, what to avoid, or even why they are two different sites would be appreciated. Thanks
| |
| jeff 3/1/2009 6:41:07 PM | From the FAQs area of the JCapper site... Q. What type of Data Files does JCapper use and who are the data providers? A. JCapper currently supports the following third party past performance data file types: Bris DRF Data File Single Format (file extension: .DRF) TSN ProCAPS Data File (file extension: .PCS) TSN Past Performance Data File (file extension: .EG) Additionally, as part of the Build Database routine, JCapper creates a JCapper .DAT data file for each past performance and results data file found by the Database Builder on the pointed to folder. The JCapper .DAT data file is a special file type that contains both past performance and results data. When loaded as a race card with the JCapper Card Loader, the JCapper .DAT data file enables results (odds, placings, and payoffs) to be displayed on the HTML Report. JCapper currently supports the following third party results data file types: Bris Exotic Results Data File (file extension: .XRD) TSN Exotic Results Data File (file extension: .XRD) What are the differences between the various data file types? Can I expect a difference in performance if I choose one data file type over the other? If so, why? I wrote all of the algorithms within JCapper and tested them based on ersults obtained with data extracted from the $1.00 Bris DRF Single Format Data Files and 25 cent Exotic Results Data Files. At no time during JCapper's creation did I even look at a TSN data file. It was only after several users requested it that I modified JCapper so that it could load and read TSN files. No modifications to the program's algorithms have been done to account for the differences between the two data providers. And none are currently planned. Results reported by users throughout the 2004 calendar year clearly showed some trends: ROI from a straight $2.00 win bet on the top ranked JRating horse in all sprint races was approximately 2 to 4 percent higher for Bris data users than TSN data users. ROI from a straight $2.00 win bet in all route races was approximately the same for Bris and TSN data users. Why? I haven't spent a lot of time making field by field comparisons between the data files from the two different providers. But I have spent some time doing this just to satisfy my own curiosity. I did notice one thing: The pace ratings for the same horse in the same race are different in a Bris data file than they are in a TSN data file. That seems odd to me because the two data providers are sister companies and both are resellers of data obtained from Equibase. What are the pricing differences between Bris and TSN? Bris file users are not locked into a data subscription plan and only pay for the individual data files that they download. TSN ProCAPS data files (file extension .PCS) are currently available by monthly subscription from TSN. Subscribers may download as many data and results files as they see fit for one monthly fee. TSN Past Performance files (file extension .EG) are currently half the price of Bris DRF Data Files. Users of these files are not locked into a data subscription plan and only pay for the individual data files that they download. Where can I obtain Bris and TSN data files? http://www.brisnet.com/ http://www.tsnhorse.com/ Ok. That said, there have been several studies over the years indicating that flat bet win roi generated by several of the key factors in JCapper is 2-4 pts higher using BRIS files than TSN. Suppose you are a speed and pace handicapper. Let's say your game centers around using factors in the program like JPR, CPace, PMI, OptPts, CFA, etc. to create UDMs... If your own personal handle is anything above $10.00 to $15.00 per race - it's my opinion that any money you "save" by going with the cheaper data file is more than made up for by the roi boost you'll get from using the more expensive BRIS files. However, that doesn't mean that you can't do well with TSN files. Several users report that they do just that. IMHO, you DO need to be more value centric during live play with TSN files than with BRIS. But it's also my opinion that's what you should be doing anyway. And I should probably mention that there are a handful of users on board whose games are primarily connections based. Their primary factors are trainer name, rider name, possibly owner name, possibly sire/dam, xthStartForTrainer, xthStartOfCurrentMeet, XthRaceOffOfLayoff, claims, layoffs, cutbacks, stretch outs, class rises and drops, form cycle, rec activity days last work and race, basicfitness, workout brilliance, etc. Most of these users could probably care less about TSN JPR/PMI, etc. vs BRIS JPR/PMI, etc. So for them the cheaper TSN data file works just fine. Maybe some TSN users will weigh in here... -jp . ~Edited by: jeff on: 3/1/2009 at: 6:41:07 PM~
| |
| dvlander 3/1/2009 7:07:53 PM | I switched to TSN from Bris almost a year ago. At the time I wasn't winning anyway so I decided to just bear down and do research and not wager until I found a series of UDMs that I could be more confident in. When you are NOT winning and you are using Bris files for nearly all tracks, that several hundred dollars per month for race files is a lot to chew. I started making plays again with the new year and I'm at a 1.11 ROI pre-rebate for Jan. and Feb. combined. I only bet earlybird and I am continuing to use the $60 per month unlimited TSN files. I have worked my way up to $35 win bet units. If I continue to do well, I'll probably make the switch back to Bris at some point to take advantage of the minor ROI advantage. Until then, I believe that you can make a worthwhile go of it with TSN. Dale
| |
| Jim the Tolerable 3/1/2009 8:38:23 PM | Thanks guys. Man, I hate when I make the newbie mistake of asking a question that is answered in the FAQ's. I appreciate the info nonetheless!
| |
| JustRalph 3/3/2009 10:54:27 PM | years back, Nathan, the author of thorotech software (equisim) did a study of TSN vs Bris and he found basically the same thing Jeff lists......2-4 points better with BRIS.......I think that data and the assumption of 2-4 points better appears to have held up over time.
|
| Reply |
|
Copyright © 2018 JCapper Software back to the JCapper Message Board www.JCapper.com |