England seal memorable season with South Africa series win
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The home side, who resumed on 97-0, needed just 5.3 more overs to reach a victory target of 130. Zak Crawley was 69 not out and Ollie Pope unbeaten on 11.
England have now won six of their seven Tests under their new leadership pairing of captain Ben Stokes and coach Brendon McCullum, having managed just one victory in their previous 17 matches when former skipper Joe Root was in charge.
"I'm delighted," said Stokes. "It's been a great series for us as a team. It has been one of those series where we haven't had many individual standout performances, but different people have put their hand up for us throughout and that's what you want in team sport.
"You want to be able to turn to people at key times and break the game open with either bat or ball and that's what we've had throughout."
England resumed just 33 runs shy of their target after the umpires had halted play on Sunday because of bad light to the disappointment of a capacity crowd.
- Crawley runs -
Alex Lees was 32 not out and Zak Crawley 57 not out -- his first fifty in 17 Test innings -- when play started Monday under sunny skies but in front of a handful of spectators, who had been let in for free.
Lees, having added just two to his overnight score, was dropped off the third ball of the day when he edged Kagiso Rabada, only for diving wicketkeeper Kyle Verreynne to floor the chance.
Crawley hit the winning runs when he punched left-arm quick Marco Jansen through the covers for four -- the 12th boundary of his innings.
It meant for the third time this series, a match was won inside three days' playing time.
Thursday's play was washed out completely before Friday's scheduled second day was abandoned as a mark of respect following the death of Britain's Queen Elizabeth II.
Fast bowlers on both sides dominated a series in which runs were hard to come by, with South Africa, who boast a world-class pace attack but a fragile top order, managing just one individual fifty -- opener Sarel Erwee's 73 in their innings-and-12-run win in the first Test at Lord's.
England bounced back to win the second Test at Old Trafford by an innings and 85 runs.
England earlier this season hammered New Zealand 3-0 before beating India in a Test postponed from last year over coronavirus concerns.
England 1st Innings 158 (O Pope 67; M Jansen 5-35, K Rabada 4-81)
England 2nd Innings (target 130, overnight 97-0)
A. Lees lbw b Rabada 39
Z. Crawley not out 69
O. Pope not out 11
Extras (lb6, nb5) 11
Total (1 wkt, 22.3 overs, 103 mins) 130
Did not bat: J Root, H Brook, B Stokes, B Foakes, S Broad, J Leach, O Robinson, J Anderson
Fall of wickets: 1-108 (Lees)
Bowling: Rabada 11-1-57-1 (2nb); Jansen 7.3-0-40-0 (2nb); Nortje 4-0-27-0 (1nb)
Result: England won by nine wickets
Series: England win three-match series 2-1