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What is Mzone?

Simply put Mzone is your tournament chip stack divided by the big blind plus the small blind and all antes collected in the hand. Mzone = (Stack/(sb+bb+a))

It is a more effective way to determine the health of your stack compared to counting big blinds.

M-Zones by Color

 There are five color of Mzone:

  • Green Mzone: Having a 20 M or higher stack
  • Yellow Mzone: Having a 10-20 M stack
  • Orange Mzone: Having a 5-10 M stack
  • Red Mzone: Having a 1-5 M stack
  • Gray Mzone: Having a 0-1 M stack

Each Mzone will dictate what you should, and shouldn't do given the situation.

For example, open-shoving all-in with a green stack would not be advisable.  Taking a line of raise/fold with a red stack would also not be a good idea.

M-Zone Explained

Which zone you are in will determine what hands you could be playing. Normally when in the green zone you would like to avoid marginal situations with your big stack.

 Practice using M-zone by playing SNGs on True Poker.

As your stack gets smaller compared to the blinds you will want to gamble a bit more.  The following chart shows a tight style of how you could expand your starting requirements as you play.

Green M zone hands

Yellow M zone hands

Orange M zone hands

Red M zone hands

Gray M zone hands

AA

A-9s

K-9s

T-9s

K-8s

KK

A-Jo

A-To

A-4s

K-To

QQ

Q-Ts

A-5s

Q-9s

9-8s

JJ

K-Qo

A-7s

J-9s

T-8s

A-Ks

77

K-Jo

Q-Jo

K-7s

A-Qs

J-Ts

66

A-6s

A-2s

TT

A-8s

 

55

 

A-Ko

   

A-3s

 

A-Js

       

K-Qs

       

99

       

A-Ts

       

A-Qo

       

K-Js

       

88

       

Q-Js

       

K-Ts

       

 Example 1:

 You have a $3,000 stack and the blinds are 50/100 with no antes, your M would be 20.

3000/(50+100)

3000/150 = 20M

If you have antes it gets a bit more complicated since you will add the blinds along with the ante from each player including yourself.

Example 2:  

If you have a $6,000 stack and the blinds are 100/200 with a 25 ante at a 9 handed table, you would have roughly 11.4M.

$6,000/ (100+200+(25 x 9))

$6,000/ (300+225)

$6,000/525 = 11.4M

With online poker there is less math involved as the pot is added up for you.  When you need to find your M zone you can simply divide your stack size by the amount of money in the pot as the cards are dealt.

Common M-Zone Stack Sizes

It can be hard to keep track of which zone you are in.  The chart below shows common blind levels and what the minimum stack size is for each zone.

Blind Levels

Green M

Yellow M

Orange M

Red M

25/50

1,500

750

375

75

50/100

3,000

1,500

750

150

100/200

6,000

3,000

1,500

300

100/200-25

10,500

5,250

2,625

525

200/400-50

21,000

10,500

5,250

1,050

300/600-75

31,500

15,750

7,875

1,575

400/800-100

42,000

21,000

10,500

2,100

500/1,000-100

48,000

24,000

12,000

2,400

600/1,200-200

72,000

36,000

18,000

3,600

*antes are for a 9 handed table

Effective Mzone

While your “True M-factor” may be 10M, your effective M will be much less.  Your effective M is calculated by subtracting the number of seats by the number of players remaining.  

This is a chart showing the difference between 'True M' and 'Effective M'.

True M

Effective M 6 handed

5 handed

4 handed

3 handed

Heads-up

50

30

25

20

15

10

20

12

10

8

6

4

10

6

5

4

3

2

5

3

2.5

2

1.5

1

1

0.6

0.5

0.4

0.3

0.2

Remember:  M-zone or M-Factor is an estimation.  As with any mathematical rule, or concept you need to use your intuition and reads.

Printable M-Zone (M-Factor) Chart

M-Zone Printable Chart

 Practice using M-zone by playing SNGs on True Poker.