The only likely exceptions I'm aware of that don't require either cheating or inside information are atypically large progressive jackpots without commensurate increases in ticket sales (unlikely exceptions include finding exploitable patterns in inadequately randomized draws before they're otherwise brought to the attention of lottery operators).
For the record, my own personal net lottery winnings total nearly $400, consisting almost entirely of gifts and winning scratch-offs I've picked up off the ground (slightly more than $400 in winnings less $5–10 I've spent buying three or four tickets in my life).
