Basketball handicaps are my absolute nightmare because of those garbage time points in the final thirty seconds. A team can be up by fifteen all game and then just completely stop defending right at the buzzer, ruining your spread. To counter this, I switched to betting strictly on first-half totals. I regularly use 1-x-bet-cameroon.com to look for early value lines on European leagues because they release markets quicker than anyone else. Avoid betting full games on heavy favorites.
Some sports seem much more unpredictable than others. Which sport has caused you the biggest problems when betting? Was it because of unexpected results or simply difficult odds?