We'll use your example. Say the person who had this record just threw out the three units and one unit plays and just put that money towards the 5 unit plays. The best plays. Wouldn't he be up more units? It's the same money risked with a better return.
I was afraid of (and did anticipate) this kind of response. Two quick points before continuing with the numbers: 1.) that would be "Monday morning quarterbacking" knowing that your "action" plays would have hit 54%. Just like someone else said earlier in this thread, "of course, when it hits, you wish you hit the max on it." 2.) I have to do this but to nitpick a little bit, it is *not* "same money risked". If all plays were risked at 5.5 units to win the 5 unit for each play, that is much much more impact to your bankroll than spreading out.
The numbers, continued:
5 units; "best" 100 plays
3 units; "normal" 200 plays
1 unit; "action" 300 plays
Total: 336-264
56% after 600 plays
Certainly, after 600 plays with a record of 336-264, flat-betting those for 5 units each play would have netted: +228 units, considerably more than +148.6 units in the 1-3-5 unit example above.
Still, that's ALL HINDSIGHT. Can you honestly say that all plays truly has no difference in edge
before placing the bets? I believe that's what some are trying to emphasize here, though.
Anyway, let's say you do flat-bet risking 2.2% of your bankroll (taking into consideration of the usual -110 juice) and the bet "to win 2% of your BR" is also equivalent to your 5 units plays. That would mean you have a 250 unit bankroll.
per play
risk 2.2% to win 2% of BR =
risk 5.5 units to win 5 units
bankroll: 5 units at 2% of BR =
250 units at 100% of BR
Now, one apparent disadvantage of flat-betting is that if you always bet the same amount --the top pick; i.e. a 5-unit play--, even during a 56% winning clip in 600 plays (336-264 record), you could possibly go through some losing streaks of easily 8 or more straight losses, maybe even going 2-13 in a set of 15 plays.
Let's say you do go through a 2-13 funk to
start before reaching the respectable record of 336-264:
You had risked 5.5 units to win 5 units ON EVERY PLAY,
which translates to -61.5 units loss of your 250 units bankroll!! By that point, your bankroll is now only less than 190 units left.
It certainly becomes hard to justify continuing risking 5.5 units even if you end up with that long-term record of 336-264.
To each his own, I guess.
* CalvinTy