Trying to learn to play PLO. Was in decent shape in this $10 tourney, about sixth with 20 players left, top 5 pay. And then this hand got me. I knew what he was betting, but I just had so many outs I couldn't let it go:

Stage #994855162 Tourney ID 1926590 Omaha Multi Normal Tournament Pot Limit $100 - 2007-11-25 23:51:08 (ET)
Table: 4 (Real Money) Seat #7 is the dealer
Seat 2 - HEARTS_KING ($5445 in chips)
Seat 3 - JOFUS1 ($4710 in chips)
Seat 4 - FREE90FREE ($3395 in chips)
Seat 7 - JUDGERICHARD ($2890 in chips)
Seat 9 - FLAFISHY ($3675 in chips)
FLAFISHY - Posts small blind $50
HEARTS_KING - Posts big blind $100
*** POCKET CARDS ***
Dealt to FLAFISHY [6d 4h 8c Ah]
JOFUS1 - Folds
FREE90FREE - Folds
JUDGERICHARD - Folds
FLAFISHY - Calls $50
HEARTS_KING - Checks
*** FLOP *** [5h Ac 2h]
FLAFISHY - Bets $200
HEARTS_KING - Raises $800 to $800
FLAFISHY - Calls $600
*** TURN *** [5h Ac 2h]
FLAFISHY - Checks
HEARTS_KING - Bets $1800
FLAFISHY - All-In(Raise) $2775 to $2775
HEARTS_KING - Calls $975
*** RIVER *** [5h Ac 2h 6s] [10d]
*** SHOW DOWN ***
HEARTS_KING - Shows [5s 9d 3h 4s] (Straight, two to six)
FLAFISHY - Shows [6d 4h 8c Ah] (Two Pair, aces and sixes)
HEARTS_KING Collects $7350 from main pot
*** SUMMARY ***
Total Pot($7350)
Board [5h Ac 2h 6s 10d]
Seat 2: HEARTS_KING (big blind) won Total ($7350) HI:($7350) with Straight, two to six [5s 9d 3h 4s - B:6s,B:5h,P:4s,P:3h,B:2h]
Seat 3: JOFUS1 Folded on the POCKET CARDS
Seat 4: FREE90FREE Folded on the POCKET CARDS
Seat 7: JUDGERICHARD (dealer) Folded on the POCKET CARDS
Seat 9: FLAFISHY (small blind) HI:lost with Two Pair, aces and sixes [6d 4h 8c Ah - P:Ah,B:Ac,B:6s,P:6d,B:10d]

I'm not sure here myself.

In a ring game - I think the play you have here is fine.

In a tournament - I'm less sure. If your opponent has only the made straight without redraws - it is an easy call (somewhat).

However, with omaha - so much is built into coordinated hands. If your opponent is sitting with a flush redraw (eating up a few outs), and pairs of the board cards in addition to his 34, you are drawing on a much thinner line.

All that said - I likely would have been all-in here as well.

I would have got all of my chips into the middle of the table on the flop betting round.

http://twodimes.net/h/?z=3955339
pokenum -o ah 8c 4h 6d - 9d 5s 4s 3h -- ac 2h 5h
Omaha Hi: 820 enumerated boards containing Ac 5h 2h
cards win %win lose %lose tie %tie EV
8c 6d Ah 4h 406 49.51 408 49.76 6 0.73 0.499
5s 4s 9d 3h 408 49.76 406 49.51 6 0.73 0.501