| Brynjar Karl Sigurðsson | |
| Height Cm: | 190 |
| Weight Kg: | 82 |
| Position: | Head coach |
| Team: | Aþena |
| League: | 1. deild kvenna |
| Birth Date: | 1973 9, df=yes |
| Birth Place: | Reykjavík, Iceland |
| Nationality: | Icelandic |
| High School: | Assumption High School |
| College: | UAM (1998–1999) |
| Career Start: | 1989 |
| Career End: | 2001 2009 |
| Career Position: | Forward |
| Years1: | 1989–1991 |
| Team1: | ÍR |
| Years2: | 1992 |
| Team2: | Valur |
| Years3: | 1992–1993 |
| Team3: | Breiðablik |
| Years4: | 1993–1994 |
| Team4: | Valur |
| Years5: | 1994–1995 |
| Team5: | ÍA |
| Years6: | 1995–1996 |
| Team6: | Valur |
| Years7: | 1996–1997 |
| Team7: | ÍA |
| Years8: | 1997–1998 |
| Team8: | Valur |
| Years9: | 1999–2000 |
| Team9: | ÍA |
| Years10: | 2000 |
| Team10: | Valur |
| Years11: | 2001 |
| Team11: | ÍA |
| Years12: | 2009 |
| Team12: | FSu |
| Cyears1: | 2001 |
| Cteam1: | ÍA |
| Cyears2: | 2005–2009 |
| Cteam2: | FSu |
| Cyears3: | 2021–present |
| Cteam3: | Aþena |
| Stats League: | Úrvalsdeild karla |
| Stat1label: | Points |
| Stat1value: | 2,115 (13.1 ppg) |
| Stat2label: | Rebounds |
| Stat2value: | 437 (4.0 rpg) |
| Stat3label: | Games |
| Stat3value: | 162 |
| Cstats League1: | Úrvalsdeild karla |
| Cwin1: | 1 |
| Closs1: | 21 |
Brynjar Karl Sigurðsson (born 17 September 1973) is an Icelandic businessman, basketball coach and former player. He played several seasons in the Icelandic top-tier Úrvalsdeild karla and was a member of the Icelandic national team. Following his basketball career, he founded the company Sideline Sports which designed coaching software used by the Premier League, NBA and the NFL.[1] [2] A controversial figure in Iceland, he has been scrutinized for his coaching methods[3] and fight with the Icelandic Basketball Association to let his junior women's team compete in boys tournaments.[4] [5] [6] [7] In February 2021, the documentary Raise the bar which follows him and his girls teams, premiered in Iceland.[8]
Brynjar was born in Breiðholt, Reykjavík in 1973. He started training basketball at the age of 9.[2]
Brynjar spent most of his career with Valur and ÍA. In 1996, he was slated to play for freshly promoted KFÍ during the 1996–97 season[9] but he eventually signed back with ÍA.[10] In January 2001, Brynjar transferred from Valur to ÍA, which by then was playing in the second-tier 1. deild karla.[11] He appeared in four games the rest of the season, averaging 27.3 points per game.[12] The following season, he averaged 32.2 points in five games as a player-coach.[13] He resigned in December the same year due to unpaid salary from the club.
In 2009, Brynjar had a short comeback in with FSu, for whom he was the head coach, when he scored 20 points in a loss against Snæfell.[14]
Brynjar played 11 games for the Icelandic national team from 1994 to 1995.[15]
In May 2001, Brynjar was hired as a player-coach for ÍA.[16] He resigned in December the same year due to unpaid salary.[17] In 2005, he founded the FSu basketball academy in Selfoss.[18] In 2008, he guided the team to promotion to the top-tier Úrvalsdeild karla after beating Valur in the 1. deild karla promotion playoffs.[19]
In 2021, he became the head coach of 1. deild kvenna club Aþena.[20] In 2024, he guided the team to promotion to the top-tier Úrvalsdeild kvenna for the first time.[21]
In 2011, Brynjar was selected to Valur's roster for its game against Akureyri in the Icelandic Handball Cup finals despite never having played professional handball before.[22] The game plan was for him to see spot minutes as a defender in the first half but due to Valur playing a man short for an extended amount of time, he eventually did not see any playing time in Valur's 26–24 win.[23]
In October 2021, Brynjar was announced as the new chairman of Leiknir's basketball department.[24]