Straight vs Flush

If the last card had only been a spade...

My bet on the turn was weak. Should I have bet the pot right there?

Now that I think about it I'm disgusted by my turn bet. I should have AT LEAST bet the pot, I feel, perhaps even gone all in. The only hand that would have beaten me would have been 5/7.

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) converter

BB ($10)
UTG ($12.80)
UTG+1 ($16)
MP1 ($7.55)
MP2 ($11.15)
MP3 ($20.15)
CO ($12.75)
Button ($18.70)
Hero ($28.90)

Preflop: Hero is SB with A:spade:, 5:spade:.
1 fold, UTG+1 calls $0.25, MP1 calls $0.25, 1 fold, MP3 calls $0.25, 2 folds, Hero completes, BB checks.

Flop: ($1.25) 4:spade:, 2:heart:, 3:heart: (5 players)
Hero checks, BB checks, UTG+1 bets $0.25, MP1 calls $0.25, MP3 raises to $0.75, Hero raises to $1.75, BB folds, UTG+1 calls $1.50, MP1 calls $1.50, MP3 calls $1.

Turn: ($8.25) 6:spade: (4 players)
Hero bets $2.5, UTG+1 calls $2.50, MP1 calls $2.50, MP3 folds.

River: ($15.75) T:heart: (3 players)
Hero bets $4, UTG+1 raises to $10.25, MP1 folds, Hero folds.

Final Pot: $30
Main Pot: $23.75, won by UTG+1.
Pot 2: $6.25, returned to UTG+1.

Results in white below:
UTG+1 doesn't show.
Outcome: UTG+1 wins $30.

Yes you should have bet the pot on the turn. At least one of those guys is looking for a heart. Raise on the flop was way too small too.

you gave the guy the exact odds he needed on the turn to chase.

Tough call on this hand. You had 4 guys going to the turn on a well raised pot. Guarantee that at least a couple of the guys had a pocket ace, and UTG+1 probably had the Ah to complete the nut flush. I would also peg one of the guys on an overpair, though with a 234 on the flop and a few guys diving right in, I wouldn't hold on to that pair for very long.

The $2.50 bet on an $8 pot holding onto the 2-6 Straight wasn't really strong enough since a $2.50 bet into a $10.50 pot is giving a flush draw decent value for his bet. A $4-5 bet should have scared him off of his flush draw.