nl50 big draw on the turn vs 80/20 donkey

Submitted by : RockingBastard

Seat 1: tikamp $51.85 in chips
Seat 2: mavo76 $108.60 in chips
Seat 3: qazwsx19 $71.65 in chips
Seat 4: Hero $56.45 in chips
Seat 5: Killah007 $21.40 in chips
Seat 6: Morguhl $51.05 in chips
Morguhl: posts small blind $0.25
tikamp: posts big blind $0.50
*** HOLE CARDS ***
Dealt to Hero
mavo76: folds
qazwsx19: calls $0.50
Hero : raises $1.75 to $2.25
Killah007: folds
Morguhl: calls $2
tikamp: folds
qazwsx19: calls $1.75
*** FLOP ***
Morguhl: checks
qazwsx19: bets $3
Hero : raises $7.50 to $10.50
Morguhl: folds
qazwsx19: calls $7.50
*** TURN ***
qazwsx19: bets $9
Hero : calls $9
*** RIVER ***
qazwsx19: bets $49.90 and is all-in
mavo76 said, "call"
Hero : folds
Uncalled bet $49.90 returned to qazwsx19
qazwsx19 collected $44.05 from pot
qazwsx19: shows a full house, Sevens full of Eights
*** SUMMARY ***

why would you raise if youve got bottompair + no FE, if its not for value/to protect your hand