Right, it’s been a while
since I took on a betting or trading challenge so it’s time to get my
arse in gear and kick on with something new.
THE CHALLENGE
Turn €500 into €5000 by trading on Betfair.
Anyone who dabbles in stocks and shares as I do will tell you how
difficult it is to double your bank, never mind increase it ten-fold so I
guess it is a little ambitious. Actually, it’s very ambitious -
ridiculously so. However, I’ve been able to make
money on the exchanges in the past doing similar challenges and I’ve
nothing to lose by aiming high other than my credibility and honour and
reputation; but most of that’s long gone anyway.
Sometimes it’s a bit
of fun to set goals and targets; often we can
be trading away with no real goal or plan and it can become quite boring
to be honest. So whether I win or lose, it should prove lively. I’ll be
completely honest with the results and post screenshots along the way
on the main blog page. I’ll also post the
selections on the blog each day although if this turns out to be
successful and I find that a lot of people are doing them, I may change
my mind - as too many people doing the same thing can affect the market.
It’s actually not as hard as you might think to
move a market and in some of the very lightly traded events, a few
hundred can shuffle things up.
TARGETS
I’m going to use my in-running trading strategy to try make the
money. I’ve no real timeframe on this but it would be nice to have it
done in a year. On average, the inplay trades strategy has increased my
bank by around 50% per month although it must
be said that it hasn’t been running all that long. 50% per month would
be amazing but I doubt it is sustainable so I’ll aim for roughly 20% per
month. Again, when compared to trading financials this sort of return
is, as the Americans might say, awesome. Perhaps
its over-ambitious but sure what the heck, it’s all for a bit of craic.
While it’s never, ever, this smooth, here’s what an increase of 20% of the bank per month would look like:
May-12 |
€500.00 |
Jun-12 |
€600.00 |
Jul-12 |
€720.00 |
Aug-12 |
€864.00 |
Sep-12 |
€1,036.80 |
Oct-12 |
€1,244.16 |
Nov-12 |
€1,492.99 |
Dec-12 |
€1,791.59 |
Jan-13 |
€2,149.91 |
Feb-13 |
€2,579.89 |
Mar-13 |
€3,095.87 |
Apr-13 |
€3,715.04 |
May-13 |
€4,458.05 |
Jun-13 |
€5,349.66 |
So as you can see, it would take about a year – but I’m around the block long enough to realise that things are never so simple.
STRATEGY
The horses I’ll be trading are part of my ‘inplay trades’ strategy that I've been posting on here the past few weeks.
I've been recording this to just a €10 stake but it's going well. After 309 bets, I'm up to just under €300 profit:
Basically, I try to find horses than generally tend to run very well
mid race (thus dropping in price) but find little when asked in the
business end of the race. I back them at Betfair
SP and then lay them at half that price in-running (with double the back
stake). To find my selections, I basically watch a load of races and
also study the formbook to try find a horses running style.
For example, let’s say a selection is backed with €10 at a Betfair
SP of 11.0, I would then put in an order to lay the horse at 6.0
in-running which is half the price.
(Don’t forget that Betfair is in decimal prices so you simply don’t
divide eleven by two. Rather, you convert to fractions. So half of 10/1
is 5/1, which in turn converts back to 6.0).
So if I back a selection at 11.0 with €10 and then put in a lay order at 6.0 for €20, there are three possible outcomes:
1.) The horse never trades as low as 6.0 in-running and loses the race. In this case, I lose €10.
2.) The horses price drops to 6.0 in-running but then goes on to lose
the race. In this case, I lose the €10 back stake, but win €20 for the
lay. This is the desired outcome as I gain €10 overall (excluding commission).
3.) The horse actually wins the race. In this case, I don’t win or lose money as I earn €100 for the back bet but lose as much on the lay bet. I like to call these ‘level’ trades.
Obviously, option one is the worst case scenario. Option two is
what I want to happen, and option three doesn’t cost me anything.
I may tweak this over time but I’ll be sure to post any changes
here. For example, so far higher priced horses have proved more
successful and if this continues to be the case, I may focus on
outsiders only. I’ll see how it goes.
STAKING
Kelly Criterion has got a little bit of stick lately on some forums
etc but it’s mainly from people who use it on losing systems and don’t
understand the maths behind it. It's not perfect, but it can maximise
returns during a good run and keep you relatively
protected during the bad times. I guess it's a more complicated way of
using a percentage of the bank. While I accept that Kelly has a lot of flaws, I need some sort of aggressive, compounded staking plan if I'm to turn a monkey into five large.
I’ll be adjusting my data daily to come up with the stakes. The Kelly formula needs to know your:
Bankroll – this will be the starting €500 and it will be updated each day.
Odds offered – a winning trade earns me 1pt and a losing trade
costs me 1pt therefore the odds offered are even money. However, to
account for commission, I’m going to use slightly shorter odds in the
calculation of 19/20 (or 1.95).
Estimated probability of winning: Rather than estimating,
I’m simply going to use my past results and adjust the figure as we go
along. If we exclude the level bets, I’m currently hitting around 58%
wins and 42% losers so I’ll start off with 58%
as the estimated probability of winning. As I say, this figure will be
adjusted as the data builds.
Finally, the stake recommended by the Kelly Criterion WILL BE HALVED. This will allow for some flexibility and to weather some of the inevitable storms.
Questions, comments and indeed criticism is welcome so feel free to post a comment.
I’ll be updating this most days on the
main blog page.
The challenge starts on Thursday, 3rd May 2012.
This time next year Rodney…..