Fellow left-hander Ed Joyce also made his way to 38 not out off 57 balls.
The Sabres restricted Glamorgan to 170-5 for five, despite 76 not out off 51 balls from Herschelle Gibbs.
But Pietersen received patient support from Andrew Flintoff, who ended the day on 43 not out off 138 balls.
Botha failed to scored off the next delivery before being run out off the fourth ball of the over.
By contrast, left-hander Lyth's maiden one-day century on his home ground, 109 not out off 95 balls, was more sedate.
Somerset lost Marcus Trescothick in the second over and were ground down, all out off the final ball for 106.
Ireland replied with 188-1 off 42.3 overs, aided by a score of 104 not out off 133 balls by William Porterfield.
Gibbs had hammered a magnificent 101 not out off 53 balls, an explosive knock which included five sixes and eight fours.
Seamer Chris Tremlett replaced him and was dropped on 0 before going on to smash 53 not out off 42 balls.
Virender Sehwag (85) and Gautam Gambhir (51) gave India a fine start before Yuvraj hit 138 not out off 78 balls.
Newton, with 11 boundaries to her name, put on 113 unbroken runs with Claire Taylor, who hit a swashbuckling 46 not out off 58 balls.
Needing 14 from the final over, bowled by Bracken, New Zealand's hopes of victory looked to have ended when Grant Elliott (23) was run out off the first delivery.
Canada batted first and were 185 all out off 48 overs, with Trent Johnston taking five wickets for 14 runs, Boyd Rankin 2-34 and Peter Connell 1-55.
As a result, the out-of-form Michael Hussey (49 not out off 55 balls) - had only Australia's number nine, Nathan Hauritz, for company when the batting powerplay came.
The innings ended in comical fashion as Atse Buurman, Mudassar Bukhari, Seelaar and Adeel Raja were run out off successive balls at the end of the 50th over.
Haq (nought) was run out off the next delivery by Kwebiha, before McCallum reached his century in 107 balls in the final over to remain not out with Iqbal.
Sangakkara enlivened proceedings in the closing overs with a six and 10 fours in his 61 not out off 69 balls, with skipper Sanath Jayasuriya finishing unbeaten on 11.
But Harbhajan (49 off 31) and Praveen (40 not out off 32) put on a blistering 84 before Peter Siddle slammed the door shut with a superb final over.
Chasing 203 for victory, the Outlaws needed 12 off the last over, but fell just short as Charlie Shreck was run out off the last ball of the match.
Broadway veterans have high hopes for "Peter and the Starcatcher, " a Peter Pan prequel that sold out off-Broadway last year and is set to open on Broadway this spring.
WSJ: 'Wit,' Starring Cynthia Nixon, Took the Long Road to Broadway
But the hosts were made to sweat even more when Adams shared a last-wicket partnership of 88 in 43 overs with Danny Briggs (15 not out off 97 balls).
At the current pace, in five days the amount of oil spilled will surpass the 75, 000 barrels spilled when a Union Oil well blew out off the coast of Santa Barbara in 1969.
New Zealand resumed on 48-2, with Vincent looking to atone for his part in a mix-up which led to Hamish Marshall being run out off the final ball of the first day's play.
BBC: Fleming despatches a short ball on the way to a half century
Several people did not take their boats out off the water at the Westerly Yacht Club, which was flooded by early morning and being bombarded with heavy rain, high winds and even a tornado warning.
FORBES: Thar She Blew: Hurricane Irene Leaves Millions In The Dark
Mark Boucher was undone by exaggerated turn from Graeme Swann, and it was only thanks to the efforts of Duminy (30 not out from 21 balls) and Morkel (32 not out off 21) that the game became competitive.
On top of half centuries from Shivnarine Chanderpaul (54) and Phil Mustard (50), Kyle Coetzer gave them a big finish as he hit three fours in an over off Chris Tremlett in plundering 29 not out off 18 balls.
Cameron White (40 not out off 39 balls) added a rush of runs at the end, and Australia knew they were on top once Brett Lee had Xavier Marshall edging behind on the first ball of the hosts' run chase.
Sangakkara was out off the last ball of the innings attempting an optimistic second run, and might have been an anxious man while watching Virender Sehwag - who fired a 254-ball 293 for India in the second Test last week - and Gambhir blaze away at the top of the innings.
It was just sitting there resting and then earnings came out and off it goes.
应用推荐