Başakşehir kept their 15th clean sheet in the league this season following their goalless draw with Beşiktaş.
Only Bayern Munich, Juventus, Porto, Benfica and Braga have conceded fewer goals than Başakşehir in Europe’s top-tier leagues this season.
Başakşehir have now kept three clean sheets in their last five league games and are fifth on goal difference despite having the same point tally as fourth placed Bursaspor.
The Istanbul based side have only let in 18 goals in 26 games this season – Porto have the joint best defensive record having conceded just 11 times this season.
Başakşehir have won 11, drawn 11, lost four times, scored 35 times and conceded 18 goals in the Süper Lig.
The Istanbul minnows have won five, drawn five and lost three away games. Başakşehir have scored 10 and only conceded eight goals on the road this season.
Başakşehir were scheduled to play Bursaspor next week but all Süper Lig and Turkish Cup games have been suspended following the armed attack on the Fenerbahçe team bus.