Wood attended Santa Clara High School in Oxnard, California. He rushed for 1,632 yards and 20 touchdowns and caught eight passes for 182 yards and four touchdowns as a senior. During his junior year, he had 2,612 yards rushing with 34 touchdowns. Wood was a USA Today All-American in 2008. He was also selected to play in the 2009 U.S. Army All-American Bowl in San Antonio, Texas. Considered a four-star recruit by Rivals.com, Wood was listed as the No. 8 running back in the nation. He chose to attend Notre Dame over USC, UCLA, and California.
College career
After redshirting in the 2009 season, Wood emerged on the depth chart as the No. 2 running back in 2010. He was used sparingly over the first few games, but after an injury to starter Armando Allen, he started the final six games where he recorded 603 yards on 119 carries and three touchdowns, and 20 receptions for 170 yards and 2 touchdowns. In his junior year, he took over the starting role. He recorded 1,102 yards on 217 carries and 9 touchdowns, and 27 receptions for 187 yards. In 2012, Wood had been suspended for the opening two games, against Navy and Purdue, for violating team rules. In the final 11 games, he rushed for 742 yards on 114 carries and four touchdowns after splitting carries with classmate Theo Riddick.
Professional career
In January 2013, Wood decided to forgo his final year of eligibility, entering the 2013 NFL Draft. He went undrafted and was signed as a free agent with the Houston Texans hours after the draft.
Houston Texans
The Texans released Wood, along with two others players, on October 21, 2013, for unspecified violations of team rules prior to a game in Kansas City.
He was signed by the Ravens to a reserve-future deal on January 15, 2014. The Ravens released Wood on August 25, 2014.
Seattle Seahawks
Wood was signed by the Seahawks to their practice squad on November 12, 2014.
Buffalo Bills
The Buffalo Bills signed Wood to their roster on August 19, 2015. On September 4, 2015, he was released by the Bills. On September 6, 2015, the Bills signed Wood to their practice squad. Wood was promoted to the Bills active roster on Friday October 2. However, in Week 5, Wood tore his ACL, ending his season.
Wood and his girlfriend were arrested on April 10, 2019 by the Las Vegas Metropolitan Police Department on charges of first-degree homicide and child abuse, after the death of the girlfriend's five year-old daughter, who was found with extreme bruising and trauma. Wood was additionally accused of forcing the child to participate in extreme exercise routines as a punishment for being overweight. Wood is currently in the custody of Clark County, Nevada without any bond.