Imran Tahir wrote his name in the record books as South Africa completed a comprehensive 139-run victory over the West Indies in the sixth match of the Tri-Nation One-Day International series at Warner Park in St Kitts on Wednesday.

Defending a formidable total of 343 for four, the leg-spinner feasted on an inept Caribbean batting effort with outstanding figures of seven for 45 off nine overs, the best-ever returns by a South African bowler in the history of ODI cricket.

Along the way, Tahir, in his 58th match, surpassed the record of Morne Morkel as the fastest South African to 100 ODI wickets in terms of matches played.

"I'm really grateful for how things worked out for me today," said a delighted Tahir. "It was a fantastic effort by the entire team and I'm just delighted to have played a part."

Earlier, Hashim Amla's 23rd ODI hundred highlighted a domineering batting effort from the Proteas after they were put in by home captain Jason Holder.

Tahir and Tabraiz Shami (two for 41) then extinguished the West Indian reply after a bright opening start, Tahir's record harvest including three in one over as the hosts were dismissed for 204 off 38 overs.

Tahir and Shamsi, in just his second match, effected the breakthrough after the rousing start of 69 in less than 10 overs by openers Johnson Charles (49) and Andre Fletcher (21).

Only 24 from Marlon Samuels among the accomplished batsmen represented any form of resistance to the spinners.

SCORES IN BRIEF

SOUTH AFRICA: 343 for 4 in 50 overs (Amla 110, De Kock 71, Morris 40, Du Plessis 73 not out, De Villiers 27; Pollard 2-64)

WEST INDIES: 204 all out in 38 overs (Fletcher 21, Charles 49, Samuels 24, Pollard 20, Holder 19, Narine 18 not out; Tahir 7-45, Shamsi 2-41)

Result: South Africa won by 139 runs.

Player-of-the-match: Imran Tahir.