The wicketkeeper-batsman, who only got his international debut after Quinton de Kock was injured during the second of six one-day internationals, was moved up the batting order when it seemed possible rain would cause the match to be decided on a Duckworth/Lewis/Stern calculation.
Klaasen, who was man of the match when South Africa gained their only win in the one-day series, opened his score with two sixes and didn’t look back. Duminy played an anchor role before finishing the match with two sixes in an innings of 64 not out off 40 balls.
Manish Pandey and MS Dhoni, hit 79 not out and 52 not out respectively in an unbeaten fifth wicket stand of 98 off 56 balls to get India to 188 for four after they had been struggling at 45 for three. India paid the penalty for a lack of bowling options. Leg-spinner Yuzvendra Chahal struggled to control the wet ball and was hit for 64 runs in four overs. Pandey made his career-best 79 not out off 48 balls while Dhoni thrashed his 52 off 28 balls. Pandey came to the wicket after a rare failure by Kohli, who was caught behind for one off fast bowler Junior Dala.
SCOREBOARD
India innings
R. Sharma lbw b Dala 0
Dhawan c Behardien b Duminy 24
S. Raina lbw b Phehlukwayo 30
V. Kohli c Klaasen b Dala 1
M. Pandey not out 79
M. Dhoni not out 52
Extras (lb1, w1) 2
Total (4 wkts, 20 overs) 188
Did not bat: H. Pandya, B. Kumar, S. Thakur, J. Unadkat, Y. Chahal
Fall of wickets: 1-0 (Sharma), 2-44 (Dhawan), 3-45 (Kohli), 4-90 (Raina)
Bowling: Morris 4-1-42-0, Dala 4-1-28-2, Paterson 4-0-51-0, Duminy 2-0-13-1 (1w), Shamsi 2-0-24-0, Phehlukwayo 2-0-15-1, Smuts 2-0-15-0
South Africa innings
Hendricks c Pandya b Thakur 26
J. Smuts c Raina b Unadkat 2
J. Duminy not out 64
H. Klaasen c Dhoni b Unadkat 69
D. Miller c Thakur b Pandya 5
F. Behardien not out 16
Extras (lb2, w5) 7
Total (4 wkts, 18.4 overs) 189
Did not bat: A. Phehlukwayo, C. Morris, D. Paterson, J. Dala, T. Shamsi
Fall of wickets: 1-24 (Smuts), 2-38 (Hendricks), 3-131 (Klaasen), 4-141 (Miller)
Bowling: Kumar 3-0-19-0, Thakur 4-0-31-1 (1w), Unadkat 3.4-0-42-2 (2w), Pandya 4-0-31-1 (1w), Chahal 4-0-64-0 (1w)