Win Probability Added is a statistic that doesn't necessarily tell us who had the greatest game, but tells us who had the most timely game. It uses historical play-by-play data to determine the value of each play based on the score, inning and situation, and calculates how the odds of winning or losing the game changed based on that play. So a game-tying home run in the bottom of the ninth is worth more than a home run in a 10-2 blowout.
Well ... David Freese had the single highest WPA in World Series history in Game 6. But to tell you what kind of game it was, teammate Lance Berkman had the third-highest. Here are the top 10, from Baseball-Reference.com:
1. David Freese, Cardinals, Game 6, 2011 (.969 WPA): Two-out, two-run triple in the bottom of the ninth, game-winning home run in the 11th. Not a bad day at the balllpark.
2. Kirk Gibson, Dodgers, Game 1, 1988 (.870): Two outs, bottom of the ninth, down by one, runner on base, Dennis Eckersley throws a backdoor slider ...
3. Lance Berkman, Cardinals, Game 6, 2011 (.832): Because the Cardinals staged two dramatic, two-out comebacks, Berkman's heroics also score high. He had a key walk in the ninth, tied it in the 10th with his two-out single and also hit a two-run homer in the first.
4. Charlie Keller, Yankees, Game 4, 1941 (.826): This is the famous game in which Mickey Owen dropped the third strike, leading to the Yankees scoring four runs in the ninth to win 7-4. Keller hit a two-out, two-run go-ahead double in the ninth, and also had an RBI single in the first during a 4-for-5 game.
5. Cookie Lavagetto, Dodgers, Game 4, 1947 (.822): Lavagetto's pinch-hit two-out, two-run double in the bottom of the ninth broke up Bill Bevens' no-hit bid and gave Brooklyn a 3-2 victory.
6. Stan Hack, Cubs, Game 6, 1945 (.806): The Cubs' leadoff hitter, Hack went 4-for-5 with two walks and three RBIs in a 12-inning 8-7 victory, including the winning double with two outs.
7. Devon White, Blue Jays, Game 4, 1993: Toronto scored six runs in the eighth to win a wild 15-14 game. White's two-out, two-run triple off Mitch Williams knocked in the go-ahead runs. He finished 3-for-5 with a walk, two runs and four RBIs.
8. Ed Sprague, Blue Jays, Game 2, 1992: His two-run pinch-hit home run off Jeff Reardon in the top of the ninth gave Toronto a 5-4 victory.
9. Terry Pendleton, Cardinals, Game 2, 1985: Trailing 2-0 entering the ninth, the Cards scored one run and loaded the bases with two outs against Charlie Leibrandt. Pendleton cleared the bases with a double down the left-field line.
10. Hal Smith, Pirates, Game 7, 1960: Smith's three-run home run in the bottom of the eighth with two outs gave the Pirates a 9-7 lead. The Yankees tied it in the top of the ninth, setting the stage for Bill Mazeroski's game-winner.