I suck with math and percentages and probabilities. Today, I learned that if a team has a seven-game winning streak, the chances of them losing a game in the next three is no bigger than at any other time. The Cubs have a nice lead in the NL Central. I've read a few times from one of the better posters on here, my boy David, that he thinks the Cubs have already won the division. What I'm wondering is, how often will a team with this lead win the division? Is it like 80 percent of the time? Higher? I realize any team CAN blow a division lead, but how common is it?