Who have been the most dangerous servers and returners through the first week at Wimbledon? The answers may surprise you. WTA Insider breaks down the numbers.
WTA Insider Courtney Nguyen
July 8, 2018

WIMBLEDON, England - The Round of 16 is set to get underway on Wimbledon's Manic Monday. The remaining field includes three major champions in Serena Williams, Angelique Kerber, and Jelena Ostapenko, as well as two more major finalists, in Karolina Pliskova and Dominika Cibulkova. 

Here are the Round of 16 match-ups for Monday:

Hsieh Su-Wei vs. Dominika Cibulkova
Jelena Ostapenko vs. Aliaksandra Sasnovich
Alison Van Uytvanck vs. Daria Kasatkina
Angelique Kerber vs. Belinda Bencic
Karolina Pliskova vs. Kiki Bertens
Julia Goerges vs. Donna Vekic
Serena Williams vs. Evgeniya Rodina
Camila Giorgi vs. Ekaterina Makarova

While the draw remains anchored by a wealth of experience, 9 players are making their Round of 16 debuts at Wimbledon: Kiki Bertens, Julia Goerges, Hsieh Su-Wei, Daria Kasatkina, Karolina Pliskova, Evgeniya Rodina, Aliaksandra Sasnovich, Alison Van Uytvanck and Donna Vekic. 

Upsets have dominated the discussion in the first week, but 8 of the 9 women who pulled off an upset over a Top 10 seed continued to pave their way into the scond week: Bertens (d. No.9 Venus Williams), Makarova (d. No.2 Caroline Wozniacki, Hsieh (d. No.1 Halep), Rodina (d. No.10 Madison Keys), Sasnovich (d. No.8 Petra Kvitova), Van Uytvanck, Vekic, and Bencic (d. No.6 Caroline Garcia.

Of the Round of 16 slate, four women have yet to drop a set: Cibulkova, Kasatkina, Ostapenko, Vekic and Serena. But when it comes to posting the best serving and return numbers over the tournament, the stat leaders might surprise you:

Julia Goerges is bidding to advance to her first Slam quarterfinal. (Jimmie48/WTA)

Ace Leaders

1. Julia Goerges: 35
2. Serena Williams: 22
3. Kiki Bertens: 21
4. Ekaterina Makarova: 17
5. Donna Vekic: 15

Serve Speed Leaders

1. Serena Williams: 119mph
2. Camila Giorgi: 118mph
3. Julia Goerges: 116mph
T-4. Karolina Pliskova: 115mph
T-4. Alison Van Uytvanck: 115mph

1st Serve Points Won

1. Donna Vekic: 84%
2. Serena Williams: 80%
3. Julia Goerges: 78%
4. Dominika Cibulkova: 76%
5. Kiki Bertens: 73%

2nd Serve Points Won

1. Dominika Cibulkova: 57%
2. Aliaksandra Sasnovich: 57%
3. Kiki Bertens: 55%
4. Alison Van Uytvanck: 54%
5. Jelena Ostapenko: 52%

Unreturned 1st Serves

1. Donna Vekic: 49%
2. Serena Williams: 48%
3. Julia Goerges: 46%
4. Alison Van Uytvanck: 43%
5. Kiki Bertens: 42%

Unreturned 2nd Serves

1. Dominika Cibulkova: 36%
2. Evgeniya Rodina: 33%
3. Karolina Pliskova: 38%
4. Serena Williams: 27%
5. Jelena Ostapenko: 25%

Dominika Cibulkova has been broken just twice through three matches. (Getty Images)

Service Games Won

1. Dominika Cibulkova: 93% (25/27)
2. Serena Williams: 88% (28/32)
3. Alison Van Uytvanck: 83% (25/30)
T-4. Donna Vekic: 82% (23/28)
T-4. Kiki Bertens: 82% (27/33)
T-4. Karolina Pliskova: 82% (31/38)

Break Points Saved

1. Dominika Cibulkova: 83% (10/12)
2. Daria Kasatkina: 69% (20/29)
3. Aliaksandra Sasnovich: 68% (13/19)
4. Belinda Bencic: 67% (18/27)
5. Hsieh Su-Wei: 66% (27/41)

Angelique Kerber (Getty Images)
2016 Wimbledon finalist Angelique Kerber is the only player to advance to the Round of 16 at all three Slams this season. (Getty Images)

Returns in

1. Angelique Kerber: 88%
2. Hsieh Su-Wei: 85%
3. Donna Vekic: 82%
4. Aliaksandra Sasnovich: 80%
5. Daria Kasatkina: 79%

Return Points Won vs. 1st Serve

1. Aliaksandra Sasnovich: 46%
2. Donna Vekic: 45%
T-3. Daria Kasatkina: 44%
T-3. Alison Van Uytvanck: 44%
T-3. Serena Williams: 44%

Return Points Won vs. 2nd Serve

1. Jelena Ostapenko: 69%
T-2. Daria Kasatkina: 64%
T-2. Dominika Cibulkova: 64%
T-3. Aliaksandra Sasnovich: 63%
T-3. Camila Giorgi: 63%
T-3. Hsieh Su-Wei: 63%

Daria Kasatkina takes time out of her second-week run to sign autographs for fans at SW19. (© Jimmie48)
Daria Kasatkina has a chance to make her Top 10 debut by reaching the quarterfinals. (Jimmie48/WTA)

Break Points Won

1. Daria Kasatkina: 73% (19/26)
2. Angelique Kerber: 58% (14/24)
3. Jelena Ostapenko: 54% (14/26)
T-4. Belinda Bencic: 52% (13/25)
T-4. Kiki Bertens: 52% (17/33)
T-4. Evgeniya Rodina: 52% (17/33)

Return Games Won

1. Daria Kasatkina: 63% (19/30)
2. Aliaksandra Sasnovich: 59% (17/29)
3. Jelena Ostapenko: 54% (14/26)
4. Alison Van Uytvanck: 53% (16/30)
5. Kiki Bertens: 50% (17/34%)