The last two times we have won series deciders have both been against Zimbabwe in Zimbabwe - one in 2015 and back in 2013.
http://www.espncricinfo.com/inida/engine/series/904331.html
http://www.espncricinfo.com/zimbabwe-v-pakistan-2013/engine/series/659535.html
Before that - we beat WI 3-1 in a series decider in 2013 since one of the games was tied and we were 2-1 heading in to the final game...
http://www.espncricinfo.com/usa/engine/series/645627.html
Before that - the last time we won a true series decider where the series victory was on the line was also in 2013 against Ireland where the first ODI was tied and the second we won by 2 wickets.
http://www.espncricinfo.com/usa/engine/series/601611.html
Before that - the last time we won an ODI series decider without a tied or washed out game was back in 2006 when we beat Scotland by 5 wickets in a 1 game series.
http://www.espncricinfo.com/usa/engine/series/240778.html
Before that - the last time we won an ODI series decider without a tied or washed out game consisting of atleast 3 games was way back in 2002 when we beat Australia 2-1 IN Australia. We lost the first game but rebounded to win the next two games and with it - the series.
http://www.espncricinfo.com/usa/engine/series/61109.html
Wow long time and it took a lot of digging!
[MENTION=93712]MenInG[/MENTION] [MENTION=9]Saj[/MENTION] [MENTION=133760]Abdullah719[/MENTION]