The Reds won the 2010 National League Central Division over the Cardinals by 5 games. Without the help of some of the Reds prospects who graduated in 2010, that may not have happened. I wanted to look at the pitchers first:
Mike Leake – Came into the season as the Reds #3 prospect without ever pitching in the minor leagues (He did throw in the AFL in 2009). He came out and was the anchor of the Reds staff for the first two months of the season before tailing off toward the middle of the season. He threw 138.1 innings of 4.23 ERA baseball which was good for 1.1 WAR on the season.
Travis Wood – Wood came into the season as the Reds #8 prospect after being the 2009 Reds Minor League pitcher of the year. After battling Leake for the final spot in the rotation all spring, Wood finally came up in July and he performed at a high level from that point forward with a 3.51 ERA over 102.2 innings which was good for 2.2 WAR on the season.
Logan Ondrusek – Ondrusek was the Reds 22nd rated prospect after the 2009 season. He was with the Reds for almost all of 2010 and he performed quite well. The big right hander threw 58.2 innings for the Reds with a 3.68 ERA. Somehow that was only good for 0.1 WAR on the season (Fangraphs uses FIP in its pitcher WAR calculation rather than actual runs allowed).
Jordan Smith – Smith was unranked in the Top 40 coming into last season, but had been as high as #18 in the past rankings. After having some initial struggles in a move to the bullpen, Smith was promoted from AA to the Majors once he began to show signs of figuring it out. He posted a 3.86 ERA in 42 innings for the Reds, but was worth -0.2 WAR (his FIP was nearly 5 – Baseball Reference has his WAR at 0.2).
Matt Maloney – Came into the 2010 season as the Reds 12th ranked prospect. Maloney only threw 20.2 innings in the 2010 season for the Reds, but he posted a 3.05 ERA in that time with a 0.2 WAR.
Pitchers overall value 3.4 Wins
The Reds only graduated one positional prospect during the 2010 season.
Chris Heisey – Heisey came into 2010 as the Reds 6th ranked prospect. He spent most of his time coming off the bench as a pinch hitter, but he did get some spot starts throughout the season. In total he hit .254/.324/.433 over 226 plate appearances that was good for 1.3 WAR on the season.
Total graduated prospects overall value: 4.7 Wins
Without the contributions of the Reds graduated players, they may not have been able to win the NL Central.