GREED IS BAD: THE PITFALLS OF CHALK PARLAYS by Nick Douglas

MadJack

Administrator
Staff member
Forum Admin
Super Moderators
Channel Owner
Jul 13, 1999
105,874
2,155
113
70
home
GREED IS BAD: THE PITFALLS OF CHALK PARLAYS

My good friend fletcher from the Message Forum once gave me a piece of advice that I often think about to this day: the best value is a winning ticket. In other words, many times it is better to ensure yourself of a cashed ticket in lieu of the possibility of a higher payout.

This thought crossed my mind again on Monday when Schilling, Clemens and Martinez all pitched against inferior opposition on the same day. Not so much because I expected folks to pay -270 and the like to back these Hall of Famers in straight bets, but because I could just feel the gears in the brains of many gamblers working up ways to correlate those three into parlay wagers.

Just as handicappers are frequently told to avoid runline favorites because they are sucker bets, handicappers should also be warned about chalk parlays. Chalk parlays are attractive bets to the average player for a number of reasons. Unlike in other sports, you are backing heavy favorites only to win, not to cover some spread (i.e. their motivation is the same as yours). Additionally, while many gamblers become scared by the big money it takes to back stud pitchers to make a profit in straight bets, parlays cut down on the juice of the overall wager. So there the average gambler can sit, Coors Light in hand, rooting for teams with big name stars who are likely to win with a bet on the line that won't cost him an arm and a leg if it loses but will generate a decent profit if it wins.

Chalk parlays are the classic example of playing short term handicapping rather than long term handicapping. No matter what the odds look like on a parlay, the bettor is still paying whatever juice exists on a straight bet over the long haul. And in fact, the risk becomes even greater because a number of bets must hit all at once for the gambler to have a winning day. There has long been talk on this site (much of it thanks to the excellent analysis of Nolan Dalla) about the pitfalls of parlays and the idea that parlays, when played sparingly, should be correlated in some way to give the gambler the best chance at a profit. To add to that talk, I've decided to give a little breakdown example of how chalk games are better played straight up rather than in a parlay.

It is a well known fact that gamblers should look at the amount they can afford to risk rather than the amount they want to win when setting a bankroll and making daily plays. That means that if you have decided that 10% of your bankroll should be wagered overall on any given day, the amount you have risked should equal that number, not the amount you are attempting to win. That approach certainly takes discipline and it leads gamblers to be tempted by chalk parlays in the following way.

Let's say a gambler with a $5,000 bankroll looks at Monday's card and sees Clemens and Schilling both pitching at home. To make things easier to calculate, let's put both lines Clemens at -280 and Schilling at -220. Wagering $280 to win $100 on Clemens and $220 to win $100 on Schilling is a tough proposition. It means you have no money left over for other action and your maximum profit for the day is a measly $200. Of course, with Clemens' loss, the reality is that you would have lost $180 on the day.

On the other hand, what if you parlay the two? The odds on a parlay are -103. Therefore, to make the $200 you desired, you would risk only $206 and have almost $300 remaining the rest of the day to make a profit. Sounds great, right?

The flaw in this thinking is that the risk of the two bets are different. If you are willing to take the smaller profit on each play as a straight bet, you would win $45 on a $100 bet on Schilling and lose $100 on a $100 bet on Clemens. Therefore your total loss is just $55 rather than $200.

If we even out both bets to -250, here is the comparison of parlaying chalk and playing it straight up:

BOTH GAMES WIN:

Straight Up: Win $100/$40 wagers on two bets. Profit = $80.

Parlayed: Win $200/$194 wager on a parlay. Profit = $194

GAMES SPLIT:

Straight Up: Win one $100/$40 bet, lose the other. Profit = (-$60)

Parlayed: Lose $200/$194 wager on a parlay. Profit = (-$200)

BOTH GAMES LOSE:

Straight Up: Lose both $100/$40 bets. Profit = (-$200)

Parlayed: Lose $200/194 wager on a parlay. Profit = (-200)

When both games lose, it's a wash. Same result. When both games win, the parlay is clearly the better bet, as your profit increases by almost 150%. When you lose one and win one, however, your loss increases by a whopping 233%.

Clearly, you must hit a number of parlays compared to the number you split to make parlaying chalk a profitable venture. And even outside of mathematics there is a another caveat. You see, we all know that chalk parlays rarely lose both games. Any seasoned gambler will tell you that it is unlikely to see two large favorites go down in the same day. Certainly it happens on occasion, but the main roadblock in chalk parlays isn't going to be going 0-2, it's going 1-1.

Parlays are at their worst when they go 1-1 and at their best when they go 0-2 or 2-0. At 2-0, the profit is obviously maximized. At 0-2, the loss is minimized because you are only losing one wager, but losing two games. At 1-1 however, the gambler is robbed of the vig loss that comes with a split and they take a full fledged loss on the wager. Since the prospect of an 0-2 is almost totally taken out of the equation with a high chalk parlay, those 1-1 days that are so frustrating take an even bigger long term toll on your bankroll.

I have come to believe that playing chalk can be a profitable venture, but it takes discipline. Chalk parlays are generally greedy plays that show a lack of discipline. Wager the chalk plays straight and be happy with the smaller profit on 2-0 days and grin and bear the small loss on 1-1 days.

As an added note, here are some other rules I would govern myself by if I wanted to play mostly chalk in baseball.

1. Play relatively few plays. The more plays you make per day the more the vig will add up over the long term.

2. Play money "to risk" rather than "to win". It can be frustrating taking small profits on chalk bets but over the long term it helps avoid disastrous days when losing streaks hit.

3. Don't blindly back star pitchers. Everyone knows how good Schilling is, so where is the value in that? Lots of times you can find a superior team with a slightly superior pitcher at a reasonable price in the -145 to -170 range. I think that is the range to look at when playing chalk.

It takes a high percentage to make a profit on chalk plays, but hitting 65% is not out of the question if you stay disciplined and do the work required. And don't forget, play the chalk straight rather than in parlays.
 

PerpetualCzech

Registered User
Forum Member
Feb 24, 2002
287
0
0
Stockholm, Sweden
Parlays are a constantly misunderstood style of betting. They are nothing more than a money management tool. For a handicapper with good judgement they will have a higher rate of return in the long run and for a losing handicapper they will lose his money faster than betting straight up.

I wrote a piece on parlays a while back so rather than repeating my words I will just post its link here:

http://www.madjacksports.com/forum/showthread.php?s=&threadid=32304

I'll use Nick's example to show why this is so:

Showing the results in terms of percentages is misleading ... what we need to do is show them in terms of actual unit profit or loss. We have 2 teams that are -250 favourites. Let's take the case where we are getting fair odds, that is, betting into lines where we have neither an advantage nor a disadvantage.

A -250 favourite translates into the favourite having a 71.4% chance of winning. Here are the respective chances of the possible outcomes of the games:

Favourites go 2-0: 0.714*0.714 = 51.02%

Favourites go 1-1: 0.714*(1-0.714)+(1-0.714)*0.714 = 40.82%

Favourites go 0-2: (1-0.714) * (1-0.714) = 8.17%

(Percentages don't add up to 100% due to rounding)

So that means that 51.02% of the time we get 192-80 = 112 extra profit by betting parlays and 40.82% of the time we have 200-60 = extra loss by betting parlays. When they both lose, we lose the same. Therefore, our net risk is:

0.5102 * 112 - 0.4082 * 140 = ZERO!

(Note: I show a 2-team parlay for 200 returning 192 profit, not 194. Again, net result is not *exactly* zero due to rounding, but it would be exactly zero if you used precise numbers, which is exactly what I am trying to demonstrate)

Now, this is the case where we have no edge against the odds we are betting into, so if we are a breakeven bettor, this shows that betting parlays vs. straight up in the long run will neither hurt nor help us. However, without going into uneccessary math, it is easy to see that our rate of return will increase if we are betting into odds that are in our favour and decrease if the odds are not in our favour.
 
S

S-Love

Guest
Obvious statement- Parlays involve more risk than a single bet. Therefore, your risk should relate accordingly. If you're a $100 per unit bettor on single bets, then you don't want to risk the same amount on a parlay. Your parlays should be placed at an amount to WIN the same amount of a single unit straight bet. For example, you bet 3 -200 favorites- don't bet them @ 100 to win 237; rather risk 42 to win 100.

I look at parlays as a high risk/high reward investment; therefore your % of BR allocated to these types of plays should be a small portion of your betting portfolio.

I feel another important concept of parlays that isn't given to a great deal of discussion is timing. I always want my last segment of a parlay w/ a starting time that is clear of all of the other segments of the parlay. I know that hedging parlays has been a subject of debate, and I fall into the category of those who always want to be able to take a profit.

Lastly, the subject of this thread is "The Pitfalls of Chalk parlays" - does that inversely imply that there is "Opportunity in Underdog parlays"? ;)
 

PerpetualCzech

Registered User
Forum Member
Feb 24, 2002
287
0
0
Stockholm, Sweden
S-Love,

I definitely agree on the first part of your post. The reason your risk on a parlay should be less than if were betting the games straight up is variance. Variance goes up when the chances of cashing your ticket goes down, and with the increased variance you need to lower your stake (in the same way that you would lower your risk when a straight bet has less chances of cashing - for example, when betting on an underdog)

However, I disagree with the point about hedging. If you are planning on hedging your parlay, then you shouldn't be including the second team on your ticket - why not just bet the first team straight up and cash your ticket when it wins? Betting the opposite side of your second team either means that you are placing extra money into a losing proposition, or that the original decision of betting on the second team was wrong in the first place.
 
S

S-Love

Guest
Czech,

Perhaps I should have clarified my hedging strategy a little better. Depending on the type of selection that last selection in the parlay entails, not only does a hedge exist but also a middle as well. That's why, for me, the last selection in the parlay would be a moneyline favorite, with a hedge/middle opportunity on the pointspread dog. Obviously this scenario won't apply in all sports or wagering offerings.

Thanks for your input
 

Nick Douglas

Registered User
Forum Member
Oct 31, 2000
3,688
15
0
48
Los Angeles, CA, USA
There is no doubt that as long as your book calculates parlay odds fairly, the odds will be the same no matter if you play chalk straight or parlay it. I am just saying that in real life I believe parlays cost the player money, especially when parlaying more than two teams together.

I don't play very many parlays, but I would be very interested to see someone who does go back over their records and track their actual parlay results and what the results would have been had they played each game straight for an equal portion of the parlay bet. I would strongly suggest that the person would have been better off betting the games straight.
 

PerpetualCzech

Registered User
Forum Member
Feb 24, 2002
287
0
0
Stockholm, Sweden
I would guess that that is certainly true but it is important to note that the reason isn't because the parlay is a type of bet that is inherantly worse than betting straight up, but because most bettors are not skilled enough to earn a profit inthe long run.

Or put it another way, the example above shows that a bettor who does earn a profit in the long run should show a higher *rate of return* (in terms of percentage) from his parlays than he does from his straight up bets.
 
Bet on MyBookie
Top