NZ look to extend unbeaten streak at home

11 Number of consecutive home Tests in which New Zealand have been unbeaten. The last time they lost a Test at home was against South Africa in Hamilton in 2012. At the time, that defeat was their fifth in ten previous Tests.

1 Series Sri Lanka have won in New Zealand, in seven attempts. Their only series win came in 1994-95 when they won 1-0. Also Sri Lanka have won only two of 15 Tests in New Zealand.

4 Test series wins for Sri Lanka outside Asia [they have played 26 series of two or more matches in the past]. Two of those series wins came against Zimbabwe and one each against New Zealand and England.

93.16 Kane Williamson's average in Tests against Sri Lanka, his best against any opposition. He has played four Tests against them - two in Sri Lanka and two at home - scoring 559 runs in eight innings with two hundreds and two fifties. In the previous series against Sri Lanka, he scored 396 runs in four innings at an average of 198.00. He averages 53.52 against the Asian teams compared to a career average of 48.36. Also six of his 12 Test centuries have come against the Asian teams, in 33 innings.

2365 Williamson's aggregate runs in international matches in 2015, the most by a batsman this year. He is 469 runs short of going past Ricky Ponting's record of most international runs in a calendar year. Williamson averages 63.91 this year and has two Tests and three ODIs to play before the end of 2015.

65.91 Angelo Mathews' average as captain in Tests, the best among all captains who have batted 40 or more innings. Since January 1, 2014, he has scored 1899 runs in 37 innings at 61.25 which is the fourth highest aggregate and the highest by any captain in this period. He had averaged only 39.71 before becoming the captain of the Sri Lanka Test team and had scored only one century. He has since scored six centuries as Test captain.

97 Consecutive Tests played by Brendon McCullum for New Zealand since his debut. If he plays both matches of the series, he will go past AB de Villiers' record of 98 consecutive Tests. McCullum made his Test debut against South Africa in Hamilton in 2004. He has also hit 97 sixes in Tests and is four short of Adam Gilchrist's record of most sixes in Test cricket.

1408 Runs scored by teams the last time a Test was played at the University Oval, Dunedin - between New Zealand and West Indies in December 2013. This is the sixth highest aggregate scored in any Test in New Zealand. Including that match, the last three Tests at this venue have ended in a draw.

104.80 Ross Taylor's batting average in eight innings at this venue. In his last Test here, against West Indies in December 2013, Taylor made 233 runs without being dismissed, including a score of 217* in the first innings. Apart from his double-hundred, he has made two fifties - scores of 94 and 59 - at this venue. Taylor has made 524 runs at the University Oval - the most by a New Zealand batsman at this venue.