Jacoby is the first Native American of Navajo descent to reach the Major Leagues.
Jacoby was the first Oregon State playerto be selected in the first round since Mike Thurman was taken 31st by the Montreal Expos in 1994.
Jacoby was named one of the Top 10 prospects in the NY–Penn League after his first pro season.
Jacoby was ranked as the fourth-best prospect in the Arizona Fall League in 2006, behind Troy Tulowitzki, Ryan Braun and Fernando Martinez.
Jacoby was the Red Sox Minor League Defensive Player of the Year and Base Runner of the Year in 2006 and 2007.
Jacoby’s 25-game Triple-A hitting streak in 2007 broke the team mark of 19 games, held by Dave Stapleton and Dave Berg.
Jacoby was the AL’s Rookie of the Month for September 2007.
In 2007, Jacoby joined Freddie Lindstrom and Joe Garagiola as the only rookies to collect four hits in a World Series game.
Jacoby and Dustin Pedroia were the first rookies ever to hit 1–2 in a World Series lineup.
Jacoby was the first rookie to hit two doubles in the same inning of a World Series game—and just the second (along with Matt Williams) to achieve this feat.
In 2009, Jacoby tied the all-time record for outfielders with 12 putouts in a game. He shares the mark with Lyman Bostock and Earl Clark.
In 2009, Jacoby broke Mike Greenwell’s team record when he played in his 179th errorless game in the outfield.
Jacoby put together a 22-game hitting streak in 2009.
In August of 2009, Jacoby broke up a perfect game by C.C. Sabathia of the New York Yankees.
Jacoby’s mother filmed all of his games at Oregon State with a Super 8 camera.
In college, Jacoby dressed as Johnny Damon one Halloween.
The town of Madras threw Jacoby a victory parade after the 2007 World Series.