- Bats Right, Throws Right
- Height 6' 0", Weight 175 lb.
- School High School SG Huizermaat, Huizen, Netherlands
In August 2007, Brennan Nijhof received the MVP-award at the European Baseball Academy tournament held in Amsterdam, Netherlands. In the same year he was also selected for the Dutch National Baseball Team AA (Cadets) and in 2009 for the National AAA-team (juniors U18). He was 1 for 12 with a double and a walk in the IBAF 2009 World Youth Championship held in Chinese Taipei.  In 2010, he was a Rookie player for Almere '90 but transferred later in the season to the Dutch Major League team Almere Magpies, when he just turned 17 years old. At the end of the regular Hoofdklasse season, Brennan ended up as one of the best 20 hitters of this professional league: in his six-game stint, his batting average was .364, his OBP .417, and his fielding percentage 1.000 
In 2008 he helped the Dutch become the European Champion at the CEB European Championship Cadets, held in Rome, Italy. He went 6 for 9 with 4 runs, 2 RBI and an OBP of .700. As a player for the Dutch Baseball Academy Scimitars, he ended up in the 2009 Elite League competition in second place, with a BA of .463, an OBP of .483 with 26 runs and 33 RBIs. During the 2010 IBAF World Baseball Junior Championship in Thunder Bay, ON, Brennan - well known as a "cold-blooded deep-in-the-count hitter" - played a major role in beating Cuba, 9-8. With the bases loaded, he earned an eight-pitch walk after being in an early 0 - 2 hole to score the upset of the World Junior Baseball Championship.   For the event, he went 2 for 9 with two runs, 3 RBI, four walks and two times hit by pitch. His .533 OBP led the Netherlands squad. 
In 2011, Brennan transferred from the Almere Magpies to the Dutch Major League club UVV. At the 2011 CEB European Junior Championship held at Gijòn, Spain, he went for 3 out 4 with two walks and two RBI during the final game against the Czech Republic. The Dutch team won the event, during which Nijhof was 4 for 14 with six walks, three runs and three RBI. 
The MLB invited Brennan as one of 55 young players from all over Europe to the MLB European Academy in Italy. In 2012, Nijhof was nominated as sport talent of the year by the city council of Utrecht . In 2014, he was selected for the All-Star Game, team South  Also in 2014, he was selected for the World Cup U21 at Taichung, Chinese Taipeh . That season, Nijhof again playe for UVV, and in 39 games, he hit 32 singles, 12 doubles, 1 triple and 1 home run, for a .232 batting average.
More statistical information on the official website of the Dutch Major League Baseball KNBSB 
- 2009 World Youth Championship
- KNBSB 2010 stats
- Dutch upset Cubans
- 2010 World Junior Championship stats