NBA Home vs Road Score Differential is 5.4 points over the past 20 years and chart below shows it by team. This is road versus home, meaning that home teams win on average by 2.7 points. Top two teams have thin air, bottom two teams in NYC.
Saturday, 23 December 2023
Wild West
Sunday, 17 December 2023
Totals Beat Spread
At the end of November I wrote that the gain needed to recover and get to a new overall high was 4.4%, and at the halfway point in the month, with just eight trading days left for the year, this percentage has been gradually whittled down to just 1.76% with the major US Indexes either at, or near, all-time highs.
Sunday, 3 December 2023
November Numbers, Charlie Munger and Books
His former partner Warren Buffett spends "five or six hours a day" reading books and newspapers. Elon Musk read more than ten hours a day in his youth, and Bill Gates reads more than 50 books a year. Mark Cuban spends about three hours reading every day and has attributed his early career success in life to reading. Steve Jobs was also an avid reader, and was quoted in The New York Times as saying "the fact is that people don't read anymore. Forty percent of the people in the U.S. read one book or less last year." I'm not sure where he pulled that 40% number from, but Jeff Bezos is also a voracious reader who reportedly "has often credited his success to the books he has chanced upon over the years."
"You don't have to be brilliant, only a little bit wiser than the other guys, on average, for a long, long time."
“It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent.”
Tuesday, 21 November 2023
World Cup Cricket and Two-Thirds Century Wraps
Saturday, 18 November 2023
NBA Cup
Thursday, 16 November 2023
Gambler's Fallacy
We're currently a few points down for the season with both official and unofficial picks, so if you've been thinking about upping the stakes at some point, this should prove to be a great time to do that.I couldn't agree less. Increasing stakes in an effort to recoup prior losses is loss-chasing and something which is often viewed as a defining feature in the transition from recreational to problem gambling.
If your system is profitable at level stakes, there is never any need to chase your losses. The positive expected value (+EV) will, in the long run, result in profits.
Tuesday, 14 November 2023
Cricket and FRAN
Hi again, As I have often mentioned, I follow your blog with great admiration. What is your opinion on rating systems? On the one hand, ELO is often used to rate teams better. I use Ken Massey's site a lot. https://masseyratings.com/ Especially for college sports, it allows for very good ratings. Thank you very much and good luck.
While I love looking at ratings, the challenge I have is using them to beat the market. A little history, but back in 1987 (36 years ago!) I bought a book called The Punter's Revenge - Computers in the world of gambling - by Tony Drapkin and Richard Forsyth (I still have it in fact) and one chapter which had a big influence on me was 8.4 "Rating the strength of football teams".
The method was named FRAN (Football Rating Assessment Number) and was based on Elo (not ELO!) with Home teams "risking" 7% of their rating and Away teams 5%. I was quite fascinated by the idea, and spent many hours in the late 1980s / early 1990s maintaining ratings, looking for value, and with some success.
I remember one midweek round of matches when I had a number of multiple bets on Away wins in Divisions Three and Four, (in those days you couldn't bet on single matches), and all five landed for what, at the time, was a rather nice payout. I remember it because waiting for the final results to be confirmed made me late to meet a friend at the pub, and she was less than impressed with my excuse.
I think I've mentioned before that I'd look at the prices in the Racing Post on my commute into London, stop at a phone on my walk to the office and call in my bets which was great until my bookmaker accounts all got closed down in fairly quick succession, which was probably more than a coincidence, and made me realise that my time could probably be spent more profitably elsewhere. Similar to my reaction when told I'd have to pay Premium Charges, part of me was satisfied that the ban meant my success was being confirmed.
But I never forgot the idea, and many years later I resumed maintaining ratings on teams which is how I stumbled across the typical profile for matches with a higher than expected probability of ending up as a Draw, which became known as the XX Draws system back in 2012 or 2013.
Like everything else, the betting landscape has evolved a lot since the late 1980s. Betfair made it possible for me to make money consistently again from betting, but other, far more sophisticated organisations, were developing their own models to identify value, and a relatively basic model based on an Excel spreadsheet was never going to find an edge.
I think ratings compiled by others are a good starting point, but because they are widely available, you need to identify a weakness (one example might be the rating for home field advantage) and tweak the overall rating to improve it, but of course everyone else is trying to do the same thing.
Fortunately the sports markets aren't efficient, and in some cases remain inefficient for much longer than should be expected, and if you identify new trends early, and adapt your model accordingly, there is some hay to be made, at least for a while.
"The trend has vanished, killed by its own discovery." -Benoit B. Mandlebrot
Saturday, 4 November 2023
October: Texas, UMPO, Cricket, Indexes and Health
The three main problems people face when they retire are apparently "financial insecurity, health issues and social isolation" and October was at least a good month for the second of those categories.
Sunday, 29 October 2023
World Cups - Rugby to Cricket
From the 32 matches all-time, 20 of the 21 strongest favourites were winners, and 9 of the 11 weakest were losers (see left). If only every sport was as clear cut, and it's a shame this tournament is only quadrennial, and not only for the investment opportunity. It's a tournament that is slow to get going with so many one-sided games, but when those more competitive games come along, it's hard to beat as a sport.
Although there are no elimination matches in the Six Nations, a similar pattern is seen here, although backing very short priced favourites is not profitable long term.
We have to wait a while for the Rugby Championship next summer, and there's the new Pacific Nations Cup featuring Canada, Fiji, Japan, Samoa, Tonga and USA which will take place next August / September which will have some knockout games.
Wednesday, 25 October 2023
Uncanny Ability - A Story of a Person
After nearly 6 years I now think you are correct. All these horse trading pre-off is just marketing gimmick to sell his software, probably with the blessing of Betfair themselves to bring in more liquidity.Read the original blog post for more details, but the only surprising thing about this comment is that it took six plus years for GM to reach this conclusion!
I tried pre-off horse trading myself and it makes no sense. There is no rule where the odds have to be, it could go anywhere. I fail to see how staring at odds moving around somehow give you insight to the future...
"Referring to yourself in the third person creates distance between "I" and "he." So if you have an exaggerated view of how great you are, you could be using this distance to make yourself even bigger."Without further comment, here's a paragraph from Peter on Peter:
It’s not only this pioneering approach that has caught people’s imagination but also Peter’s uncanny ability to predict and exploit whatever market he embraces. However, it is always characterised by a deep understanding of risk and a lifelong pursuit of its limits. This is a story of a person, who from his childhood, has sought through a very personal journey, to profitably apply a passion for numbers and statistics to real-world markets.
The ability to predict and exploit any market would indeed be uncanny. It would also mean that Peter would be one of the wealthiest, if not the wealthiest, people on the planet. I suspect he isn't, and as Gnome Mange says - "It makes no sense". When someone is talking about themselves in such a flowery and ridiculous way, it should ring some alarm bells to anyone thinking of parting with their money.
Thanks for the comment though and the trip down memory lane. Moving on to more current events, and it wasn't a bad weekend overall, although the Bundeslayga System had a bad round and dented the profits.
The Rugby World Cup (RWC) semi-finals went as expected, but it can hardly be claimed that the South Africa bet was value even if it did ultimately land. Up 0.29 units and we now have odds for 27 RWC elimination matches, and 18 of the 19 shortest priced favourites have won, with just one of the other nine prevailing. New Zealand are a weak favourite in the Final, and while Third Place matches (or Bronze Finals) as Rugby refers to them are best avoided in football, in Rugby they do seem to go to form.
In the MLB playoffs, the underdogs continue to do well. Very well in fact with 12 winners from the last 15, and twice as may wins as losses in total (22-11) when even a 50/50 record would guarantee a profit. With just the World Series to come between two Wild Card teams from the West, we're up about 16.76 units so far. The favourites, with home field advantage, are the Texas Rangers, who play the Arizona Diamondbacks. The Rangers have never won a World Series. With a negative ROI of 1.9%, underdogs tend not to do so well in the World Series, although now that the Designated Hitter rule has gone, that might change.
In College Football, the manuscript systems went 4-2 ATS and 5-1 on the Totals for a nice profit, while in the NFL we went 3-4 ATS and 2-1 on the Totals. Combined for the season, these systems are now 104-60-5, up 40.9 units.
It's still early in the NHL season and like last year, it's off to a slow start down 3.75 units after 31 matches. Last season we were down 12.25 units at the end of November, but we still ended the season in profit.
The 2023 NBA season started last night with two games, but no qualifying bets, which may be a good thing after 2022 was a disappointment for both systems, with rare losses. A blip, or has the edge gone? Time will tell.
And finally to football, and the good news was that I updated the document early on Saturday morning with a new system and it produced two winners for subscribers from two qualifiers. The Bundeslayga Systems were terrible as mentioned earlier, losing a combined 7.24 units, the Segunda División Draws had one winner from three for a tiny loss, and there were no selections in the EPL.
Tuesday, 17 October 2023
Anyone For Tennis?
The tendency to overemphasize the importance of recent experiences or the latest information we possess when estimating future events. Recency bias often misleads us to believe that recent events can give us an indication of how the future will unfold.
It's a strong bias and several markets in team sports I follow reflect this, and while Tennis isn't a sport I follow closely, the well known Tennis Tipster Nishikori noted the other day that:
Betting against a player who has defeated any of the BIG 3 in his previous match has been highly profitable.
This does seem a very reasonable premise, and Nishikori explains his thoughts and analysis in the Tweet linked to above, well worth a read, concluding with this chart:
An excellent analysis in my opinion, but I don't always agree with Nishikori. Earlier this month, he tweeted that:If you think about it, Betting on Tennis ultimately comes down to assessing the pair "QUALITY vs. FORM" of both players. Easy to say, difficult to do.
Neither have anything to do with form though. You can be in great form and then get sick or injured or have personal issues arise that impact your motivation.My definition of 'FORM' in sports betting is a simple one - it's the record of performance in previous events, and specific to tennis, a player's form is one thing, but their health and motivation are unrelated. Yes, if a player gets injured during a previous match, this will be reflected in a lower form rating, but if the injury occurs between matches it won't be reflected.
False Favourites
Today they [South Africa] are underdogs at around 2.42 to beat host nation France and these odds look good value to me.
For once, we had luck on our side. Q. When was the last World Cup game to be won with the help of a blocked conversion? A. Never. Ireland could have won their match, and England weren't exactly convincing, but sometimes these things go your way. It won't last.
Unfortunately the New Zealand / South Africa double won't make you too wealthy next weekend with both favourites by some distance the shortest in World Cup history for a Semi-Final. But the Final should be good!
World Cup Semi-Finals, Finals and Favourite's price:
Sunday, 15 October 2023
Springboks Off a Bye
Saturday, 14 October 2023
Byes, Dogs and Rugby Union QFs
Wednesday, 11 October 2023
Severed Arms, Closed Accounts
"Is he the greatest handicapper of all time? Maybe.Is he the greatest bettor of all time? Unquestionably."
The truth is, until I decided to write this book, I would not have taken $20 million to share the details of my system. Friends ask me why I'd want to give away my secrets now. The simple answer is I'm not getting any younger and I want to give something back to sports fans.
As an example, in England when we were doing business with William Hill, if an account won as much as two weeks in a row, his limit might be reduced from $10,000 to $50 a game regardless of how he won. Instead of removing a finger, the books cut off the entire arm. That was their mentality. That's how drastically winners were punished.Paddy Power of Dublin, Ireland, was even worse. They only offered a $500 limit. If an account won three bets in a row, they would close the account. Over the years, I had two hundred accounts at Paddy Power that lasted an average of four days. Sadly, that's the way many legalized bookmakers operate today.
Tuesday, 10 October 2023
Europe v USA
Friday, 6 October 2023
Baseball, Interrupted
The markets do seem to be overrating home AL favourites this season when playing NL teams, so there might be an edge opposing these
Tuesday, 3 October 2023
Buying Time
Another weekend wrapped up with the NFL Monday Night game a winner for the Totals System, although these only went 1-2 in Week 4.
I thought there was only one qualifier for the Small Road 'Dogs System this weekend in the NFL, but the 'official' results showed that there were actually two games.
When I ran the query about 30 minutes before the early games began, and the one result was the Tampa Bay Buccaneers +3 at New Orleans Saints, which was also a Divisional game. I'd read earlier that:
As I noted in my reply, with Small Home Favourites over the last ten years (550 bets) hitting at just 42%, this wasn't a bet I'd have been comfortable with, and certainly not at -120 (1.833) but then you wonder or worry what the backer knows that you don't.Well not much perhaps, because the Road' Dog won rather easily 26-9 although for the record, my stake was a little smaller and I had the Bucs at +4 at 2.06.
The game I missed out on was a loser, actually a double loser, as it was also a Divisional game. Sometimes these work in your favour, and sometimes they don't, so officially the NFL results for this round come to 3-4, and for the season to date combined are now 28-11-1.
The College Systems made up for the one loser going 7-6-1 for the week and for the season are now 28-16-2.
The EPL Draw System was back in action with three selections, and one winner for a small profit, and was arguably a little unlucky not to have a second winner with the Tottenham Hotspur v Liverpool game. 3 winners from 8 for the season, and +2.31 units.
Perhaps the tide has turned for the Segunda División Draws with three long overdue winners from the five selections reducing the units lost so far this season by 4.61 to 9.92.
September overall ended up slightly positive, an outcome that was in the balance until the final trading day on Friday. It was the first month since September 2019 when the total was less than four figures, but at least this time the number was green.
The above quote, or similar, is often bandied about, but it's not exactly true as one reply noted and Nick has addressed himself:Looking after your health may be able to buy you more time?
Presumably this was posed as a question because being in excellent health isn't going to help you if a meteorite lands on your head, but since most of us die from natural causes rather than accidents, looking after yourself is a good idea and with that in mind, I am once again taking on the Sober October challenge. In 2021 I achieved it but last year, not quite.
With an 87% correlation between weight and alcohol days, the pounds will come off, though October 2021's loss of 20.8lbs is unlikely to be beaten given I'm at a lower starting weight. The further away you are from ideal, the harder it is to lose them.