That win was against the Highlanders in round one last year, after going through the entire 2015 season without beating another New Zealand franchise.
They currently have a 10-game losing streak to the Chiefs, which stretches back to 2011, a six-game losing streak against the Crusaders and a four-game losing streak against Saturday's opponents the Hurricanes.
For even worse reading for Blues' fans - check out their away record within New Zealand.
Following last week's defeat to the Highlanders in Dunedin, the Blues have won just one of their last 23 away games within New Zealand; that victory came back in Round 2, 2013 against the Hurricanes.
Unless they make the playoffs they won't play another road game within the New Zealand Conference this year - which means the current losing streak will stretch to year five.
Like most New Zealand sides the Blues have a remarkable record at home against teams in the other three conferences.
They have won their last 10 straight at home against non-New Zealand teams with their last defeat against a foreign side in Auckland coming against the Lions in round four, 2015.
Blues v New Zealand teams since 2015
1-17
Blues against non-NZ teams at home since 2015
10-1
Blues against New Zealand Conference sides
2015
Chiefs 23 Blues 18
Hurricanes 30 Blues 23
Chiefs 23 Blues 16
Highlanders 30 Blues 24
Crusaders 29 Blues 15
Hurricanes 29 Blues 5
Crusaders 34 Blues 11
Highlanders 44 Blues 7
2016
Blues 33 Highlanders 31
Crusaders 28 Blues 13
Hurricanes 23 Blues 19
Chiefs 29 Blues 23
Crusaders 26 Blues 21
Hurricanes 37 Blues 27
2017
Chiefs 41 Blues 26
Highlanders 16 Blues 12
Crusaders 33 Blues 24
Highlanders 26 Blues 20
v Hurricanes, Saturday
v Chiefs, May 26