2018 Tianjin Open
The 2018 Tianjin Open was a women's professional tennis tournament played on hard courts. It was the 5th edition of the tournament, and was part of the WTA International category of the 2018 WTA Tour. It took place at the Tuanbo International Tennis Centre in Tianjin, China between 8 October and 14 October 2018. Second-seeded Caroline Garcia won the singles title.
Finals
Singles
- Caroline Garcia defeated Karolína Plíšková 7–6, 6–3
Doubles
- Nicole Melichar / Květa Peschke defeated Monique Adamczak / Jessica Moore 6–4, 6–2
Points and prize money
Prize money
| Event | W | F | SF | QF | Round of 16 | Round of 321 | Q2 | Q1 |
| Singles | $163,265 | $81,251 | $43,663 | $13,068 | $7,195 | $4,444 | $2,160 | $1,270 |
| Doubles * | $26,031 | $13,544 | $7,271 | $3,852 | $2,031 |
1 Qualifiers prize money is also the Round of 32 prize money
* per team
Singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed | ||||
 Czech RepublicOther entrantsThe following players received wildcards into the singles main draw:The following player received entry through a protected ranking: The following players received entry from the qualifying draw: Withdrawals
RetirementsDoubles main-draw entrantsSeeds
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Romania