| Final | | date | Player 1 | sets | Player 2 | set 1 | set 2 | set 3 |
| date | Player 1 | sets | Player 2 | set 1 | set 2 | set 3 | | Sat 03.11.18 | Julia Görges |  GER | 514 | | Sat 03.11.18 |
| Azalea Group "A" | w | l | sets | games | | 1. Madison Keys |  USA | 616 | 1 | 0 | 2:0 | 12:6 | | 2. Daria Kasatkina |  RUS | 110 | 1 | 1 | 2:3 | 21:24 | | 3. Wang Qiang |  CHN | 1122 | 0 | 1 | 1:2 | 12:15 |
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| date | Player 1 | sets | Player 2 | set 1 | set 2 | set 3 | dur | | Tue 30.10.18 | Daria Kasatkina | RUS | 110 | 2-1 | Wang Qiang | CHN | 1122 | 6-1 | 2-6 | 7-5 | 1:58 (81-80) | | Wed 31.10.18 | Madison Keys | USA | 616 | 2-0 | Daria Kasatkina | RUS | 110 | 6-2 | 6-4 | | 1:10 (64-49) | | Fri 02.11.18 | Madison Keys | USA | 616 | --- | Wang Qiang | CHN | 1122 | |
| Camelia Group "B" | w | l | sets | games | | 1. Anastasija Sevastova |  LAT | 211 | 1 | 0 | 2:0 | 13:6 | | 2. Garbiñe Muguruza |  ESP | 717 | 1 | 0 | 2:1 | 15:11 | | 3. Zhang Shuai | CHN | 1236 | 0 | 2 | 1:4 | 17:28 |
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| date | Player 1 | sets | Player 2 | set 1 | set 2 | set 3 | dur | | Wed 31.10.18 | Garbiñe Muguruza | ESP | 717 | 2-1 | Zhang Shuai | CHN | 1236 | 3-6 | 6-3 | 6-2 | 2:03 (93-82) | | Thu 01.11.18 | Anastasija Sevastova | LAT | 211 | 2-0 | Zhang Shuai | CHN | 1236 | 6-0 | 7-610 | | 1:28 (79-59) | | Fri 02.11.18 | Anastasija Sevastova | LAT | 211 | --- | Garbiñe Muguruza | ESP | 717 | |
| Orchid Group "C" | w | l | sets | games | | 1. Aryna Sabalenka |  BLR | 312 | 1 | 0 | 2:0 | 12:8 | | 2. Ashleigh Barty |  AUS | 919 | 1 | 1 | 2:2 | 20:19 | | 3. Caroline Garcia |  FRA | 818 | 0 | 1 | 0:2 | 7:12 |
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| date | Player 1 | sets | Player 2 | set 1 | set 2 | set 3 | dur | | Tue 30.10.18 | Aryna Sabalenka | BLR | 312 | 2-0 | Ashleigh Barty | AUS | 919 | 6-4 | 6-4 | | 1:26 (67-61) | | Thu 01.11.18 | Ashleigh Barty | AUS | 919 | 2-0 | Caroline Garcia | FRA | 818 | 6-3 | 6-4 | | 1:16 (65-51) | | Fri 02.11.18 | Aryna Sabalenka | BLR | 312 | --- | Caroline Garcia | FRA | 818 | |
| Rose Group "D" | w | l | sets | games | | 1. Julia Görges | GER | 1014 | 1 | 1 | 3:2 | 25:24 | | 2. Elise Mertens |  BEL | 413 | 1 | 1 | 2:2 | 20:17 | | 3. Anett Kontaveit |  EST | 520 | 1 | 1 | 2:3 | 16:24 |
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| date | Player 1 | sets | Player 2 | set 1 | set 2 | set 3 | dur | | Tue 30.10.18 | Elise Mertens | BEL | 413 | 2-0 | Anett Kontaveit | EST | 1020 | 6-3 | 6-1 | | 1:07 (56-40) | | Wed 31.10.18 | Anett Kontaveit | EST | 1020 | 2-1 | Julia Görges | GER | 514 | 6-2 | 4-6 | 6-4 | 2:08 (92-85) | | Thu 01.11.18 | Julia Görges | GER | 514 | 2-0 | Elise Mertens | BEL | 413 | 6-2 | 7-65 | | 1:49 (82-65) |
| Player | pts | T | W | Group | Pl. | | 10.Daria Kasatkina | RUS | 3315 | 25 | 1 | Gr. A | out | | 11.Anastasija Sevastova | LAT | 3185 | 22 | 1 | Gr. B | | 12.Aryna Sabalenka | BLR | 3145 | 26 | 2 | Gr. C | | 13.Elise Mertens | BEL | 3065 | 22 | 3 | Gr. D | | 14.Julia Görges | GER | 2995 | 23 | 2 | Gr. D | | 15.Serena Williams | USA | 2976 | 7 | 0 | | | 16.Madison Keys | USA | 2817 | 15 | 0 | Gr. A | | 17.Garbiñe Muguruza | ESP | 2725 | 22 | 1 | Gr. B | | 18.Caroline Garcia | FRA | 2600 | 22 | 1 | Gr. C | | 19.Ashleigh Barty | AUS | 2420 | 20 | 1 | Gr. C | | 20.Anett Kontaveit | EST | 2375 | 23 | 0 | Gr. D | out | | 21.Jeļena Ostapenko | LAT | 2363 | 21 | 0 | | | 22.Wang Qiang | CHN | 2155 | 22 | 2 | Gr. A | | Alternates | | 24.Mihaela Buzărnescu |  ROU | 1860 | 28 | 1 | | | 28.Hsieh Su-wei |  TPE | 1720 | 27 | 1 | | | Wildcard | | 36.Zhang Shuai | CHN | 1370 | 27 | 0 | Gr. B |
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| Stage | Singles | Doubles | | | Prize money | Points | Prize money | Points | | Champion | RR1 + $478,200 | RR + 460 | RR1 + $20,000 | N/A | | Runner-up | RR + $160,000 | RR + 200 | RR1 + $10,000 | N/A | | Semifinalist loss | RR + $17,000 | RR | N/A | N/A | | Round Robin win per match | 76,300 | 120 | 5,000 | N/A | | Round Robin loss per match | N/A | 40 | N/A | N/A | | Participation fee | 42,500 | N/A | 15,000 | N/A | | Alternates | 10,000 | N/A | N/A | N/A |
Undefeated champion: $673,300 ($42,500 participation, $152,600 RR, $478,200 SF/F)1 RR means prize money or points won in the round robin.Qualified players[edit]Singles[edit]Updated as of 23 October 2018. Players in gold have qualified.The player in dark gold was awarded a wildcard.Players in brown have withdrawn.
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| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | TB |
| date | Pair 1 | sets | Pair 1 | set 1 | set 2 | TB | dur | | Tue 30.10.18 | Lyudmyla Kichenok / Nadiia Kichenok |  UKR | UKR | 72 | 2-1 | Jiang Xinyu / | Yang Zhaoxuan | CHN | CHN | | 7-69 | 3-6 | [11-9] | 2:07 (89-91) | | Thu 01.11.18 | Lyudmyla Kichenok / Nadiia Kichenok | UKR | UKR | 72 | 2-1 | Miyu Kato / Makoto Ninomiya |  JPN | JPN | 65 | 6-4 | 1-6 | [10-7] | 1:34 (67-69) |
| date | Pair 1 | sets | Pair 1 | set 1 | set 2 | TB | dur | | Wed 31.10.18 | Shuko Aoyama / Lidzya Marozava | JPN | BLR | 142 | 2-0 | Mihaela Buzărnescu / Alicja Rosolska | ROU |  POL | 53 | 6-3 | 6-2 | | 1:19 (70-53) |
| Mihaela Buzărnescu / Alicja Rosolska | ROU | POL | 53 | | Miyu Kato / Makoto Ninomiya | JPN | JPN | 65 | | Lyudmyla Kichenok / Nadiia Kichenok | UKR | UKR | 72 | | Shuko Aoyama / Lidziya Marozava | JPN | BLR | 142 | | Rankings as of 22 October 2018 | | Jiang Xinyu / | Yang Zhaoxuan | CHN | CHN | | Xun Fangying / | Tang Qianhui | CHN | CHN |
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