Hi, I found myself this little easy formula to bet the turn and then on river, bet the pot who is equal to the effective stack.

(EffectiveStack on the Turn - Pot on the turn) / 3 = Effective stack on the river. = Pot size Bet on river

Ex: pot on the turn is 20. Effective stack is 80. I will bet 20 to able to bet 60 at the river.
Effective river = 80-20 = 60
Pot at the river = 20+20*2=60

So 20 in 80 is a 25% PSB.

So now, I search a formula to be able to balanced flop bet percentage and turn bet percentage relative to the pot. Example, I want lines like :
50/50/100
84/84/100
125/125/100 (overbet/overbet/pot bet)

Depending on the SPR, i'm not able to find a formula for this. HELP!

Starting from the flop, for the river bet to equal the pot which equals your river stack, bet (Flop Stack – Flop Pot) / 6

Example: Stack = 80, Pot = 20. Flop Bet = 60/6=10
Turn Stack = 70, Pot = 20+20 = 40
Turn Bet = 10
River Stack = 60, Pot= 60

Bet sequence is 10 10 60

In fact, I search line in percentage, not in BB.
When I write 80/80/100 I mean a 80% pot size bet on the flop, then a 80% on the turn then a pot size bet on the river.

Your equation are made to be used in BB.

I suppose, I will see a square root or something in the formula on the flop.

This isn't quite what you want, but close.

The following formula determines how much to bet on each street, stated as the fraction of the street’s pot, so that you will bet all-in on the river using the same pot fraction to hopefully stack your opponent. The key input is the ratio of effective stack to flop or turn pot size. The equation is

F=((2*Stack/Pot+1)^(1/x)-1) / 2; x=2 for turn, x=3 for flop.

For your example of 20 pot and 80 stack on the turn

F=((2* 80/20 +1)^1/2-1) / 2 = (9^1/2 -1)/2=100%.

So make a pot size bet on the turn. The river bet is the same fraction of the river pot as was the flop bet fraction, in this case 100%, and this amount will be equal to your stack.

From the flop with same SPR, the constant fraction of the pot to bet is 54%.

Formula taken from draft of my book

Hold’em Poker Tables - Ev, Odds, Equity, Range, Bankroll

Thanks. But, I already found this one on other posts. Since Yesterday, I try to find an equation solver to resolve 7 to 8 short equations like :
Bet on the flop (BF) / pot on the flop (PF) = percentage on the flop (QF)
Stack on the flop (SF) - BF = Stack on the turn (ST)
QF = percentage on the turn (QT)
PF + 2*BF = pot on the turn (PT)
and so on thought the river with Stack River (SR) = (pot at river) PR= (bet at river) BR