Off the Board Parlay Odds
A parlay is a type of wager where multiple outcomes are selected. Each of the outcomes must win in order for the parlay to win. Any point spread tie reduces to the next lowest number of teams in the parlay. The odds for the number of teams placed in a parlay are based on the pay table below when the selections (point spreads and totals for football and basketball, games and segments) have a default line of 110. Listed below is the playMGM/Borgata Online pay table.
All Football and Basketball Parlays
(Point Spreads and Totals all  110)
2 Teams 
13/5 
3 Teams 
6/1 
4 Teams 
10/1 
5 Teams 
20/1 
6 Teams 
40/1 
7 Teams 
80/1 
8 Teams 
150/1 
9 Teams 
300/1 
10 Teams 
600/1 
11 Teams 
1100/1 
12 Teams  2000/1 
13 Teams  3500/1 
14 Teams  6000/1 
15 Teams  10000/1 
Parlay Odds Selections:
The legs in a Pay Table parlay all must meet the following requirements:
 Football, basketball (excluding money lines) and their halves or quarters
 Point spread or totals
 Default odds that are set at 110.
Maximum payoff on off the board parlays is 10000/1. Acceptance of all parlays is at the discretion of management.
Example 1: The 2team parlay (See picture below) is a standard parlay paying 2.6 to 1 or 3.6 for 1. Using the Pay Table, $10.00 x 3.6 = $36.00 payout. Pay Table parlays are not calculated using “true odds” (110 is not .9091 in this case). The Pay Table Multiplier section below explains the way that Pay Table odds are calculated.
PARLAY (2 TEAMS) 


1 PARLAY @$10.00 

24Jan PRO FOOTBALL 

[302] COLTS 
7^{1/2}110 
22Jan PRO BASKETBALL 

[702] BOBCATS 
6110 
Ticket Cost: 
$10.00 
To Win: 
$26.00 
Collect: 
$36.00 
WRIT2 SR_POS2 
22Jan18 11:02:40 
Pay Table Multiplier
This is the factor that, when used for each leg of a parlay, gives the Pay Table payout. For a 2team parlay at default odds, the factor is a square root. For a 3team parlay, it is a cube root, for a 4team parlay, it is the 4th root of the payout.
The return on a 2team Pay Table parlay at 2.6 to 1 is 3.6 for one, as the payout. The square root of 3.6 is 1.8974. This is the Pay Table Multiplier for 2team parlays.
$10 X 1.89736 X 1.89736 = 36.00.
Below is the pay table multiplier which is used as the method to calculate pay table parlays when the default odds are 110.The respective Pay Table Multiplier (shown below) by the True Odds Multiplier of the number (other than 110) minus the True Odds Differential (shown below).
Teams 
Pay Table Multiplier 

2 
1.89736 
3 
1.91293 
4 
1.89882 
5 
1.87217 
6 
1.89289 
7 
1.91078 
8 
1.91912 
9 
1.92677 
10 
1.93238 
NonPay Table Parlays
We use the term NonPay Table parlay when at least one leg does not meet requirements 1 and/or 2 of the Pay Table parlay default odds section above.
Sports like Boxing, Baseball, and Hockey use NonPay Table Odds. Football money line bets also use them. The True Odds Multiplier section below explains the way that Non Pay Table odds are calculated.
Example 2: The 2team parlay below uses the True Odds Multiplier because neither leg meets the Pay Table requirements, so $10 x 1.9091 x 1.9091 (rounded) = $36.45 payout.
PARLAY (2 TEAMS) 


1 PARLAY @$10.00 

30Jan PRO HOCKEY 

[2] CAPITALS 
110 
28Jan BOXING 

[3605] MAYWEATHER 
110 
Ticket Cost: 
$10.00 
To Win: 
$26.45 
Collect: 
$36.45 
WRIT2 SR_POS2 
22Jan18 16:26:24 
Example 3: The 2team parlay below uses the Pay Table Multiplier for 105 because it meets all other requirements for Pay Table Odds (see Pay Table Parlays above). Note: The root for the Pay Table Multiplier is based on only the number of legs that meet the requirement. It uses the True Odds Multiplier for 107 (1/120 = .8333) because that leg does not meet requirement 2. Although it is a Football game, it is a money line wager.
$10 x 1.9091 x 1.8333 = $35 payout.
PARLAY (2 TEAMS) 


1 PARLAY @$10.00 

Jan 08 NFL 

NFL WILDCARD PLAYOFFS  
[105] FALCONS 
+3110 
Jan 08 NFL 

NFL WILDCARD PLAYOFFS  
[107] STEELERS 
120 
Ticket Cost: 
$10.00 
To Win: 
$25.00 
Collect: 
$35.00 
TIMW BODINES T01 
5Jan18 09:35:56 
Pay Table NonDefault Odds
We use the term Pay Table NonDefault Odds when all legs meet requirements 1 and 2 of a Pay Table parlay: 1) Football, basketball, and their halves or quarters 2) Point spread or totals, but at least one leg does not meet requirement 3 because it has odds that are not equal to the default odds.
Pay Table NonDefault parlays are not calculated using “true odds” (120 is not .8333). The True Odds Differential section below explains the way that Pay Table NonDefault odds are calculated.
Example 4: The 2team parlay below uses the Pay Table Multiplier for default odds for 302 (which meets all the requirements of a Pay Table parlay like Example 1 above). However, the other leg (304 Saints) has nondefault odds 120, so a factor called the True Odds Differential is used to adjust the True Odds Multiplier of the 120 to derive the new Pay Table Multiplier for nondefault odds 120.
$10 x 1.8974 x 1.8216 = $34.56 (rounded to nearest nickel $34.55)
PARLAY (2 TEAMS) 


1 PARLAY @$10.00 

24Jan PRO FOOTBALL 

[302] COLTS 
7^{1/2}110 
22Jan PRO FOOTBALL 

[304] SAINTS 
3120 
Ticket Cost: 
$10.00 
To Win: 
$24.55 
Collect: 
$34.55 
WRIT2 SR_POS2 
22Jan18 11:03:11 
True Odds Differential
The only time that the True Odds Differential is used is when a leg contains a Pay Table sport that has nondefault odds for point spread or totals (Example 4 above has 3120 instead of 3 110).
Calculating the True Odds Differential for a NonDefault Odds leg when default odds = 110
(True Odds Multiplier of 110)  (Pay Table Multiplier of 110) = True Odds Differential
1.9091  1.8974 = .0117
Calculation to find the Pay Table Multiplier for NonDefault odds 120 in Example 4
True Odds Multiplier of 120 = 1.8333 – True Odds Differential = . 0117
Pay Table Multiplier of 120 = 1.8216
The only exception for not using the true odds differential is when the pay table multiplier exceeds that of true odds (110 or .9091).
Calculations to find the True Odds Multiplier
When the Leg is a Favorite
When laying odds (money line is less than 0): (1) x (100)/ (money line) +1.
Example: True Odds Multiplier for Money line: 110: (1) x ((100)/ (110)) +1 = 1.9091
When the Leg is an Underdog
When taking odds (money line is greater than 0): (money line)/ (100) +1 Example:
True Odds Multiplier for Money line: +130 = ((+130) /(100)) +1 = 2.3