Good question. I'd try, but have no idea where to start. :D Research past playoff history on MLB.com. Look at game 3's for the past 5 years, and let us know what % of those who won game 3 won the series ;-). I looked at the last two years out of curiosity. In 2006 the game 3 winner ultimately won 6 of the 7 postseason series (the St. Louis vs. San Diego NLDS was the exception). And in 2005 the game 3 winner won all 7 series. So that's a 13-1 record for game 3 winners. To put a little perspective to that, in series that were tied at one in 2005 and 2006, the team that won game 3 won the series all seven times. To go back a little farther, since 2000 in series that were tied at one the team that won game 3 went 21-5 in the series. The Marlins in 2003 actually lost game 3's in this situation (series tied at 1) to both the Cubs and Yankees. So yeah, when the series is tied, Game 3 is very important. but your 3rd starter doesn't always start Game 3. If you didn't clinch the playoff spot until the final day of the season, it may have been your ace who pitched on that Sunday, meaning your ace would be pitching Game 3