Maharaj's career-best returns, Williamson's twin failures
1973 Last instance a visiting spinner took two consecutive five-wicket hauls in a series in New Zealand before Keshav Maharaj. Intikhab Alam took 7 for 52 and 6 for 127 against New Zealand in 1973. The last left-arm spinner to achieve this feat was Derek Underwood, in 1971.
2003 The previous instance when a South Africa spinner took two consecutive five-wicket hauls in a Test series. Paul Adams took five wickets in both innings of a Test against Bangladesh.
1952 The last time a spinner from South Africa took 13 or more wickets in the first two Tests of a series. Hugh Tayfield took 17 wickets in the first two Tests against Australia.
110 Jeet Raval's strike rate against Morne Morkel. He scored 33 runs from 30 balls. In contrast, Raval was very conservative against the other four bowlers, scoring at a strike rate of 32.6. (47 runs from 144 balls). In the first session, Raval scored seven runs from 35 balls against Kagiso Rabada. Rabada had bowled four maidens from seven overs in his first spell. Raval left 17 and defended 27 balls out of the 57 he faced from Rabada in this Test.
265 Runs added by the last four wickets for South Africa - third highest for them in Tests. The highest for South Africa is the 318 added by the last four wickets against Australia in Melbourne in 2008.
0 South Africa have never lost a Test series to New Zealand. With their 1-0 lead, they cannot lose the ongoing series either.
25 Wins for South Africa in Tests against New Zealand - their best win-loss ratio against any team, barring Zimbabwe and Bangladesh. South Africa have lost only four matches out of 44 against New Zealand.
Gaurav Sundararaman is a senior stats analyst at ESPNcricinfo