Luczak was closer to win the set before the tie-break - led 6:5 (30-15).
Well, of course Luczak was closer, he was serving first. In general though Gulbis was very solid on his serve in the first set, he didn't face a single break point (and this is clay so it's even more impressive). I'm glad he didn't choke the tiebreak away. After he broke for 3-1 in the second set it was never really in doubt.