I admit it: I have no idea on how to play heads up.
Although, the question here is simple: Should I have bet normally instead of pushing all-in?
No Limit Hold'em Tournament T75/T150
Buy-in: $1.39+$0.11 USD Hold'em No Limit
PokerStars
2 players
Formatted by pokercopilot.com - Mac OS X hand history analysis and tracking
Stacks:
BTN - Hero (T2,194)
BB - BB (T2,306)
Preflop: (T255, 2 players) Hero is BTN with 6♠ J♥
Hero raises to T2,179 (all-in), BB calls T2,029
Flop: 4♦ Q♣ 3♣ (T4,388" + BOLD_END + GREEN_END + ", 2 players, 1 all-in)
Turn: 4♣ (T4,388, 2 players, 1 all-in)
River: K♣ (T4,388, 2 players, 1 all-in)
Total Pot: T4,388
BB shows Q♥ A♣ (a flush, Ace high)
Hero shows 6♠ J♥ (a pair of Fours)
BB wins T4,388