The Latvian was eliminated on Tuesday after defeat by Venus Williams, while World No 3 Pliskova won her opening two White Group ties against Williams and Garbine Muguruza.
Venus won 7-5, 6-4 to advance along with Karolina Pliskova, who lost to Jelena Ostapenko.
Pliskova won her group at the WTA Finals despite losing to already-eliminated Ostapenko.
SINGAPORE, Oct 26 (Reuters) - Jelena Ostapenko enjoyed a winning end to her season with a 6-3 6-1 triumph over Karolina Pliskova in her final White Group match at the WTA Finals on Thursday and vowed to return as a better player after her first taste of the event.
SINGAPORE, Oct 26 (Reuters) - Jelena Ostapenko ended her maiden WTA Finals campaign on a winning note with a surprisingly easy 6-3 6-1 victory over a subdued Karolina Pliskova on Thursday, the Latvian saving her best until last after she was eliminated earlier in the week.
Venus Williams produced a vintage display full of guts and determination to grind out a 7-5, 6-7(3), 7-5 victory over Jelena Ostapenko in their White Group encounter at the WTA Finals on Tuesday.
Venus Williams needed three match points and more than three hours to defeat Jelena Ostapenko 7-5, 6-7 (3), 7-5 at the WTA Finals in Singapore
Venus Williams needed three match points and more than three hours to defeat Jelena Ostapenko 7-5, 6-7 (3), 7-5 at the WTA Finals on Tuesday
SINGAPORE, Oct 24 (Reuters) - Venus Williams produced a vintage display full of guts and determination to grind out a 7-5 6-7(3) 7-5 victory over Jelena Ostapenko at the WTA Finals on Tuesday to set up a White Group decider for a semi-finals berth against Garbine Muguruza.
SINGAPORE, Oct 24 (Reuters) - Venus Williams produced a vintage display full of guts and determination to grind out a 7-5 6-7(3) 7-5 victory over Jelena Ostapenko in their White Group encounter at the WTA Finals on Tuesday.
SINGAPORE, Oct 22 (Reuters) - Garbine Muguruza made a winning start to her third consecutive appearance at the WTA Finals with a 6-3 6-4 victory over Jelena Ostapenko on Sunday but the Spaniard will continue to push herself through the group stage knowing anything can happen.
Simona Halep beat ninth-seeded Jelena Ostapenko 6-2, 6-4 in the China Open semi-finals to guarantee the Romanian will take over the top ranking for the first time in her career.
Oct 7 (Reuters) - Simona Halep will take over as the new number one in the WTA world rankings after progressing to the China Open final with a dominant 6-2 6-4 victory over Latvia's Jelena Ostapenko in Beijing on Saturday.
Oct 4 (Reuters) - French Open champion Jelena Ostapenko became the seventh player to qualify for the season-ending WTA Finals in Singapore, the WTA said on Wednesday.
Barty reached her biggest WTA final by beating French Open champion 6-3, 6-0 at Wuhan Open.
Sept 29 (Reuters) - Australia's Ashleigh Barty continued her impressive run at the Wuhan Open as she stormed past French Open champion Jelena Ostapenko 6-3 6-0 on Friday to reach the final.
Sept 29 (Reuters) - Jelena Ostapenko overcame a sluggish start to stun world number one Garbine Muguruza in the quarter-finals of the Wuhan Open on Thursday and the Latvian suggested she plays more confidently with less time to prep...
French Open champ Ostapenko beat Wimbledon champ Muguruza 1-6, 6-3, 6-2 in quarterfinals.
NEW YORK, Sept 2 (Reuters) - French Open champion Jelena Ostapenko was knocked out of the U.S. Open third round, losing 6-3 6-2 to Russian Daria Kasaktina after hitting a massive 38 unforced errors on Saturday.