SINGAPORE - Every day we will bring you 10 things to look for from the BNP Paribas WTA Finals Singapore presented by SC Global - stats, nuggets... get your fix on all of that for Day 4, right here!
First, here are the scenario charts detailing how each player can (or can't) qualify for the semifinals at the WTA Finals, and who will qualify first and second in the group with each scenario...
WHITE GROUP SCENARIOS
RED GROUP SCENARIOS
* the order of finish between Halep and Ivanovic would depend on percentage of games won and lost.
(singles play begins at 1:30pm Singapore time - see TV listings here)
(2) Maria Sharapova (RUS #2) vs (6) Agnieszka Radwanska (POL #6)
Head-To-Head: Sharapova leads Radwanska, 10-2
1) Sharapova needs to win this match in straight sets to stay alive in the tournament.
The only way Sharapova can qualify for the semifinals is if she wins this match in straight sets and Wozniacki beats Kvitova in straight sets in the next match. Anything else and Sharapova's out.
2) Sharapova still has a chance at finishing the year at No.1 - but it's slim.
To take No.1 from Serena, Sharapova not only needs the scenario in 1) to happen and qualify for the semifinals, she needs to go all the way to the title - and Serena also needs to lose before the final.
3) Sharapova dominates this head-to-head, but the only time they played at the WTA Finals...
... it was a marathon. Sharapova needed three hours and 12 minutes to beat Radwanska in the round robin portion in Istanbul two years ago, rallying from 7-5, 4-2 down to prevail, 5-7, 7-5, 7-5.
(3) Petra Kvitova (CZE #3) vs (8) Caroline Wozniacki (DEN #8)
Head-To-Head: Series tied, 4-4
4) There's only one specific scenario where Wozniacki doesn't qualify for the semifinals.
Wozniacki's got a fantastic shot at qualifying for the semifinals - the only scenario where she doesn't is if Radwanska beats Sharapova in straight sets and Kvitova beats Wozniacki in straight sets.
So basically, if Sharapova took a set off of Radwanska in the first match - even if Sharapova ended up losing the match - then Wozniacki's into the semifinals, no matter what happens in this match.
5) Wozniacki has never beaten multiple Top 5 players at the same tournament.
Wozniacki has eight Top 5 wins, but all at different tournaments - if she wins this match it will be her first time beating more than one at the same tournament (she beat Sharapova in her first match).
6) Indoors may favor Kvitova...
These two have split eight career meetings but Kvitova won their only indoor meeting convincingly - 6-4, 6-2 at the WTA Finals in Istanbul three years ago, when Wozniacki was actually the World No.1.
(4) Simona Halep (ROU #4) vs (7) Ana Ivanovic (SRB #7)
Head-To-Head: Halep leads Ivanovic, 2-1
7) Halep is in the semifinals no matter what happens here.
By virtue of Thursday's results, Halep has already qualified for the semifinals, just the second Romanian ever to reach the WTA Finals semifinals (Irina Spirlea achieved the feat in 1997 and 1998).
8) Ivanovic will make the semifinals if she wins in straight sets. Anything else and she's out.
If Halep wins just one set in this match, Halep and Serena will move on from the Red Group.
9) Ivanovic is trying to beat multiple Top 5 players at the same tournament for the third time.
Having beaten No.5-ranked Eugenie Bouchard this week, Ivanovic is trying to beat multiple Top 5 players here - she's only done it at the same tournament twice before, at the French Open in 2007 (Svetlana Kuznetsova and Sharapova) and 2008 Indian Wells (Jelena Jankovic and Kuznetsova).
(1) Errani/Vinci (ITA/ITA) vs Peschke/Srebotnik (CZE/SLO)
Head-To-Head: Peschke/Srebotnik lead Errani/Vinci, 7-1
10) Errani and Vinci couldn't have drawn a tougher opening match-up.
Of all of the teams between No.5 and No.8 that they could have drawn, this is probably the worst for Errani and Vinci. Peschke and Srebotnik have won seven of their eight previous meetings, though they're just 2-1 against them so far this year - and one of those victories came via retirement.