Why Pakistan are the best T20I team of the last two years

In the last couple of years, Pakistan have been on a roll in T20 internationals. In 26 matches, they have won 22 and lost just four, which is quite a stunning record in a format in which it is generally difficult to string together wins.

Their numbers during this period are not dissimilar to what they achieved in the early days of T20Is. In the period between 2006 and 2009, they won 21 out of 27, losing only five (excluding the Durban tie v India in the 2007 World T20). In between these two periods, from January 2010 to June 2016, they were quite poor; their 39-38 win-loss record was ninth among the top 11 teams but in the last two years, they have turned the magic switch back on.

In both their successful periods, the aspect of their cricket that has stood out is their bowling. In the last two years, they have conceded barely seven runs an over, while nine of the top 11 teams have gone at eight or more runs an over. Their bowlers have also been superb at taking wickets: their average of 18.39 is also the best. The numbers and their rank, in terms of run-rate and economy rate, are similar in both periods.

Pakistan's RR and ER during their best periods in T20Is

Period	RR	RR rank*	ER	ER rank*
Since Jul '16	8.25	6	7.03	1
Till Dec '09	7.71	7	6.83	1

*Among top 10 teams in ICC rankings

Their phase-wise bowling numbers indicate that they are the best team in the first six - both in terms of economy rate and average - while in the middle overs, they are second to Afghanistan, whose numbers are propped up by the sort of opposition they play. Out of 18 matches played by Afghanistan in these two years, 12 have been against teams outside the top 10 in the ICC T20I rankings.

Pakistan's phase-wise bowling stats in T20Is since Jul 1, 2016

Phase	Ave	Rank*	ER	Rank*
0.1 to 6.0	21.57	1	6.50	1
6.1 to 15.0	18.35	2	6.76	2
15.1 to 20.0	15.68	5	8.49	3

*Among teams in the top 10 in ICC rankings

In the first six, especially, Pakistan are well clear of the field, going at just 6.5 runs per over, while the next best is India's 7.94. In terms of averages too, the gap between Pakistan and the next best - 26.38, by India - is huge.

The table below shows how potent Pakistan's leading Powerplay bowlers have been in these last couple of years: most of them have combined wickets with superb economy rates. Mohammad Amir has taken only four wickets in 22 overs, but has gone at under six runs an over.

Similarly, in the middle overs too, Pakistan's slow bowlers and seamers have been exceptional. In fact, the five bowlers who've bowled 100-plus balls in the middle overs all have superb numbers in terms of economy rate and wickets. Shadab Khan has been the standout bowler with 28 wickets, the most by any bowler in the middle overs in this period.

Pakistan's best bowlers in the middle overs (6.1 to 15.0)*

Bowler	Balls	ER	Wkts	Ave
Shadab Khan	472	6.69	28	18.82
Hasan Ali	162	7.59	11	18.63
Imad Wasim	138	5.65	8	16.25
Faheem Ashraf	130	5.90	7	18.28
Mohammad Nawaz	168	6.82	7	27.28

From Jul 1, 2016

Also, Pakistan have all their bowling bases covered, with their fast bowlers and spinners both contributing to the team's success. Their fast bowlers have the best economy rate in this two-year period - Australia are next at 8.06 - while the spinners have a better economy rate than all other teams except Afghanistan.

Thus, regardless of conditions, Pakistan have had the bowling resources to dominate opposition teams. The bowlers have also made up for all the batting deficiencies in the side, leading to a record that is every other team's envy over the last couple of years. Given these numbers, they will start clear favourites in Sunday's tri-series final against Australia.