Tag Archives: Betdaq

Slayr November 2016

Well, inevitably, as Slayr continues to make steady profit I’ll keep posting results. Here’s November output. It’s at times like this that you wish you had bigger stakes on with two profitable months. I’m still not convinced it’s a long term winner, juggling it in my mind, risky with charts like this, but I’m only on for fractions, market capacity is there for loads more, even on Betdaq. That’s decided then, I’ll up stakes and not get involved if there’s a bit of a down move, leave it to play December.


Slayr continues

Slayr is continuing and has been backing at low stakes since mid September. I haven’t really paid much attention to it, the data collected is not as illuminating as I’d hoped. Below is the chart for October. It finishes OK but the large ups and downs are not what I want to see from any strategy, it could so easily have ended at a loss.


The following two charts are modified from my results to show the outcome if I had been backing all along. They don’t account for the spread so the losses would be greater in reality.

With a new stoploss set, the bot will continue to run. I’m not sure how long for as I intend reviewing my whole setup in an attempt to set clear goals.

Edit: I know the name is derived from the fact it was a laying bot and now it’s backing. I’m not changing the name.

SLAYR – still going

I’d said in a comment that I was likely to stop Slayr due to results and it was never meant to be a bot anyway (see here). However, in my usual “everything-takes-forever-to-do” mode of operation, it’s been left running. I’ve also adjusted stakes twice, raising both times, with my bank currently around where it started. Sitting at the computer listing my car on eBay, I soon drifted onto the betting and, after some time wrestling with the poor file format from Betdaq, I got this chart using a level stake and accounting for 5% commission –

Story so far

Pleasantly surprised was my reaction. I will now change the stake, once more, to a percentage of bank and starting around the current level. I’ll also set the minimum balance stop to 1.5 times the down trend seen mid chart (as it’s the largest down run in this chart), approximately 14x stake.

Testing stakes

I’ve been using a small stake of £0.10 to test Slayr. Betdaq charge 5% commission  but round up, meaning I’m paying £0.01 or 10%. This could swing the strategy from win to lose. I’d be looking for a small overall profit margin on this type of bet so it’s important to get a realistic result from testing. I’ve increased the stake to £0.20 for testing.

Interesting test results

I’ve been recoding my horse racing form bot (Bot 3), trying to get it to work without errors. It scrapes a lot of data for each race – runner form, jockey form, track data, going, weather. Having got it to a point where it runs okay with me sat in front of it, I decided to run it live on the VPS but without placing bets, allowing performance and data collection checks. To keep things separate I’m running this on Betdaq with a slow refresh and, as I’ve not used it for a while, I’ve added a short section of code to place some pointless bets based on where the market odds are, nothing to do with the bots purpose but hopefully keeps the exchange happy.

The results so far are good and the bot is gathering most of the data without error. Any missing data isn’t causing the bot to stop, however, I’d like it to make multiple attempts to gather it, so some adjustments are needed. The algorithm for choosing a selection to back or lay is operational but requires refining. I’m basically calculating my own ‘betting forecast’ and backing or laying a selection depending on how far away from my suggested odds it is trading.

The interesting part comes from the short bet placement code I added. Of the 12 bets it placed over the five days testing, only 1 of the selections won. Obviously I’d backed them all.


My theory for this code was – if I place bets in efficient markets (which I thought close-to-off horse racing markets were), I will likely lose at a rate around my commission (5%) plus half the spread position. Therefore stakes of £0.1 are a small price for testing.

I know the small sample is hardly proof but with average odds of 3, none greater than 3.5 and results at 12, I’m going to keep this little code running to see how it pans out and update the blog on results. It will be interesting to find out if I just happened to drop into the strategy during a 10 long losing streak.