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The M-Factor According to Dan Harrington
IntroductionIn this Article
- The M-factor and effective M
- The zone system
- Why you should never end up in the dead zone
Many players know the famous book series Harrington on Hold’em. This article will discuss a concept Harrington presents, which presents an easy system for defining your position in a multi-table tournament (MTT). This system is called the M-factor, Magriel's M, often simply called "M" by many players, and is based on the following formula:
M = stack / (SB + BB + Antes)
This formula indicates how many orbits you could
survive without playing a single hand. The formula, as seen above,
simply divides your stack size by the amount of chips in the pot before
any action takes place. This approach gives you a better impression of
where your stack stands in a MTT and uses the small blind and antes in
addition than just defining your position in terms of BBs (as you might
Never look at your M as an isolated value, but rather in relationship
to the other players' M. Whereas you should play slightly more
aggressive with an M of 8 when the other players have an average M of
7, your play will change when the average M is 30 to your M of 8.
Short-handed tournaments (3 to 6 players) require an adjusted M, called the effective M, shown by the following formula:
Effective M = M * (players / 10)
The effective M is better suited when short-handed because the orbits whip around much faster, thus accelerating the rate by which your already dwindling chip stack falls. Theoretically, the M and effective M are the same thing. In full ring MTTs, the Effective M is just null as 10 players/10 = 1 and simply reveals a reflexive calculation.
Harrington defined 5 critical zones and also outlined corresponding strategy depending on your M.
- Green zone: M > = 20
- Yellow zone: 10 < M < 20
- Orange zone: 5 < M < = 10
- Red zone: 1 < = M < = 5
- Dead zone: M < 1
The following paragraphs explain how and why you should play in each zone.
Click for more information.