2019 Portugal Open (table tennis)

The 2019 Portugal Open was the first event of the 2019 ITTF Challenge Series. It took place from 15–17 February in Lisbon, Portugal.[1]

2019 Portugal Open
Tournament details
Dates15–17 February 2019
Competitors64S / 16D
Total prize moneyUS$60,000
LocationLisbon, Portugal
Champions
Men's Singles Liang Jingkun
Women's Singles Hina Hayata
Men's Doubles Cao Wei
Xu Yingbin
Women's Doubles Fan Siqi
Yang Huijing
Mixed Doubles Lin Gaoyuan
Liu Shiwen

Men's singles

Seeds

  1. Lin Gaoyuan (Final)
  2. Jonathan Groth (First round)
  3. Liang Jingkun (Champion)
  4. Vladimir Samsonov (Semifinals)
  5. Quadri Aruna (Third round)
  6. Daniel Habesohn (Third round)
  7. Ovidiu Ionescu (Second round)
  8. Omar Assar (Third round)
  9. Stefan Fegerl (First round)
  10. Ľubomír Pištej (First round)
  11. Mihai Bobocica (Second round)
  12. Eric Jouti (First round)
  13. Lubomír Jančařík (First round)
  14. Hunor Szőcs (Third round)
  15. Wang Chuqin (Third round)
  16. Marcelo Aguirre (First round)
  17. Florent Lambiet (First round)
  18. João Geraldo (Second round)
  19. Yukiya Uda (Quarterfinals)
  20. Alexander Shibaev (First round)
  21. Pavel Širůček (Quarterfinals)
  22. Harmeet Desai (Second round)
  23. Robin Devos (First round)
  24. Andreas Levenko (First round)
  25. Alexey Liventsov (First round)
  26. Pavel Platonov (Second round)
  27. Martin Allegro (First round)
  28. Paul Drinkhall (First round)
  29. Supanut Wisutmaythangkoon (Second round)
  30. Alberto Miño (Second round)
  31. Nandor Ecseki (First round)
  32. Deni Kozul (Third round)

Draw

Top half

Section 1
First round Second round Third round Quarterfinals
1 Lin Gaoyuan 11 8 11 12 11
David Serdaroglu 8 11 5 10 7 1 Lin Gaoyuan 11 11 11 11
Tobias Hippler 1 9 7 6 18 João Geraldo 4 8 9 7
18 João Geraldo 11 11 11 11 1 Lin Gaoyuan 11 11 11 11 12
20 Alexander Shibaev 10 11 5 11 3 11 7 Truls Moregard 7 6 9 13 10
Sun Wen 12 8 11 8 11 7 11   Sun Wen 5 5 11 6 8
Truls Moregard 11 5 5 11 9 11 11 Truls Moregard 11 11 7 11 11
12 Eric Jouti 9 11 11 8 11 6 5 1 Lin Gaoyuan 11 11 11 5 11
11 Mihai Bobocica 11 11 11 11 12 21 Pavel Širůček 4 9 6 11 5
Yu Heyi 4 5 13 4 10 11 Mihai Bobocica 10 5 4 11
Carlos Machado 9 11 5 5 21 Pavel Širůček 12 11 11 13
21 Pavel Širůček 11 13 11 11 21 Pavel Širůček 8 5 11 11 11
24 Andreas Levenko 10 11 7 11 11 8 11 5 Quadri Aruna 11 11 9 9 4 INJ
Simon Soderlund 12 7 11 9 3 11 13 Simon Soderlund 9 6 12 5 4
Sadi Ismailov 11 6 5 7 5 5 Quadri Aruna 11 11 10 11 11
5 Quadri Aruna 6 11 11 11 11
Section 2
First round Second round Third round Quarterfinals
6 Daniel Habesohn 11 11 9 11 12 11
Aleksandr Tiutriumov 6 6 11 6 14 6 6 Daniel Habesohn 11 11 5 11 7 11
Anthony Amalraj 11 14 11 11 6 11 Anthony Amalraj 4 5 11 5 11 6
27 Martin Allegro 6 12 13 9 11 8 6 Daniel Habesohn 7 4 11 14 3
26 Pavel Platonov 11 3 11 9 6 12 11 Xu Yingbin 11 11 4 16 11
Cao Wei 8 11 9 11 11 10 9 26 Pavel Platonov 11 11 11 4 3 12 8
Xu Yingbin 11 11 11 11 Xu Yingbin 9 9 13 11 11 10 11
16 Marcelo Aguirre 9 8 9 6 Xu Yingbin 13 9 2 11 3
13 Lubomír Jančařík 12 11 6 9 6 11 4 Vladimir Samsonov 11 11 11 13 11
Masaki Takami 10 2 11 11 11 13 Masaki Takami 8 11 11 6 11 9 7
David Reitspies 11 11 7 8 1 11 8 32 Deni Kozul 11 9 7 11 7 11 11
32 Deni Kozul 2 6 11 11 11 7 11 32 Deni Kozul 6 8 8 3
23 Robin Devos 8 11 11 6 7 14 8 4 Vladimir Samsonov 11 11 11 11
Tom Jarvis 11 8 9 11 11 12 11 Tom Jarvis 3 9 5 4
Diogo Silva 10 6 5 11 11 4 4 Vladimir Samsonov 11 11 11 11
4 Vladimir Samsonov 12 11 11 9 9 11

Bottom half

Section 3
First round Second round Third round Quarterfinals
3 Liang Jingkun 11 12 11 12
Vladimir Sidorenko 3 10 5 10 3 Liang Jingkun 11 11 11 11
Elias Ranefur 11 11 11 5 11 Elias Ranefur 9 8 4 7
17 Florent Lambiet 7 9 9 11 5 3 Liang Jingkun 11 11 12 6 11
29 Supanut Wisutmaythangkoon 12 11 11 11 11 15 Wang Chuqin 4 7 10 11 5
Bence Majoros 14 4 3 6 5 29 Supanut Wisutmaythangkoon 7 7 7 7
Andre Silva 5 10 11 7 5 15 Wang Chuqin 11 11 11 11
15 Wang Chuqin 11 12 7 11 11 3 Liang Jingkun 11 11 11 11
10 Ľubomír Pištej 8 12 11 11 9 7 Niu Guankai 8 1 4 7
Qiu Dang 11 14 7 7 11 11 Qiu Dang 13 11 9 3 11 11 11
Sai Linwei 8 12 6 12 10 30 Alberto Miño 15 5 11 11 9 9 3
30 Alberto Miño 11 14 11 10 12   Qiu Dang 8 10 12 9 6
28 Paul Drinkhall 11 10 3 11 7 8 Niu Guankai 11 12 10 11 11
Niu Guankai 7 12 11 6 11 11 Niu Guankai 11 9 11 4 10 11 12
Steffen Mengel 12 7 11 5 13 4 7 Ovidiu Ionescu 4 11 8 11 12 8 10
7 Ovidiu Ionescu 10 11 7 11 15 11
Section 4
First round Second round Third round Quarterfinals
8 Omar Assar 12 5 2 11 12 6 12
Xiang Peng 10 11 11 9 10 11 10 8 Omar Assar 13 13 12 11 8 11
Xu Haidong 11 11 11 11 Xu Haidong 11 11 10 13 11 5
31 Nandor Ecseki 4 8 8 5 8 Omar Assar 6 8 7 11 11 2
19 Yukiya Uda 13 11 8 13 11 14 19 Yukiya Uda 11 11 11 7 7 11
Diogo Carvalho 11 8 11 15 8 12 19 Yukiya Uda 14 11 11 11
Zhang Yudong 11 11 9 11 6 11 Zhang Yudong 12 8 8 9
9 Stefan Fegerl 6 5 11 9 11 6 19 Yukiya Uda 11 11 11 11 7 9 4
14 Hunor Szőcs 11 10 10 11 11 11 Liu Yebo 6 5 9 13 11 11 11
Aleksandar Karakašević 7 12 12 6 5 9 14 Hunor Szőcs 11 11 13 11
Rareş Şipoş 8 7 1 2 22 Harmeet Desai 2 5 11 7
22 Harmeet Desai 11 11 11 11 14 Hunor Szőcs 11 9 6 11 11 12 7
25 Alexey Liventsov 4 6 6 9 Liu Yebo 9 11 11 8 4 14 11
Liu Yebo 11 11 11 11   Liu Yebo 14 7 13 8 11 11
Shunsuke Togami 11 10 11 15 11 Shunsuke Togami 12 11 11 11 8 8
2 Jonathan Groth 6 12 9 13 4

Finals

Semifinals Final
1 Lin Gaoyuan 11 11 8 11 11 11
4 Vladimir Samsonov 7 13 11 9 8 7 1 Lin Gaoyuan 11 10 12 7 6
3 Liang Jingkun 10 10 11 10 11 11 11 3 Liang Jingkun 6 12 14 11 11
Liu Yebo 12 12 8 12 2 7 9

[2]

Women's singles

Seeds

  1. Liu Shiwen (Third round)
  2. Hitomi Sato (Third round)
  3. Saki Shibata (Quarterfinals)
  4. Elizabeta Samara (Third round)
  5. Miyu Kato (Quarterfinals)
  6. Honoka Hashimoto (Final)
  7. Shan Xiaona (First round)
  8. Georgina Póta (Quarterfinals)
  9. Soo Wai Yam Minnie (Third round)
  10. Britt Eerland (Second round)
  11. Hina Hayata (Champion)
  12. Ng Wing Nam (First round)
  13. Wu Yue (First round)
  14. Dina Meshref (First round)
  15. Natalia Partyka (First round)
  16. Sabine Winter (First round)
  17. Satsuki Odo (Second round)
  18. Ganna Gaponova (Second round)
  19. Liu Jia (Second round)
  20. Yana Noskova (Second round)
  21. Szandra Pergel (First round)
  22. Bruna Takahashi (First round)
  23. Dóra Madarász (First round)
  24. Olga Vorobeva (First round)
  25. Linda Bergstrom (Second round)
  26. Dana Čechová (First round)
  27. Rachel Moret (First round)
  28. Mariia Tailakova (First round)
  29. Stéphanie Loeuillette (First round)
  30. Debora Vivarelli (First round)
  31. Lily Zhang (Second round)
  32. Shao Jieni (Second round)

Draw

Top half

Section 1
First round Second round Third round Quarterfinals
1 Liu Shiwen 11 11 11 11
Madhurika Patkar 3 4 2 2 1 Liu Shiwen 11 11 11 11
Archana Girish Kamath 7 11 11 11 7 10 32 Shao Jieni 6 4 5 9
32 Shao Jieni 11 7 9 13 11 12 1 Liu Shiwen 11 10 12 9 11 8
19 Liu Jia 11 11 11 3 12 11 Hina Hayata 9 12 14 11 8 11
Daniela Dodean 2 9 9 11 10 19 Liu Jia 6 7 INJ
Chantal Mantz 5 6 8 8 11 Hina Hayata 11 11
11 Hina Hayata 11 11 11 11 11 Hina Hayata 11 11 11 11
12 Ng Wing Nam 11 11 5 8 5 4 8 Georgina Póta 6 2 2 2
Huang Hsin 8 9 11 11 11 11 Huang Hsin 11 11 10 9 11 11
Zhang Binyue 11 11 9 5 6 20 Yana Noskova 6 9 12 11 6 7
20 Yana Noskova 4 13 11 11 11 Huang Hsin 7 7 12 9
21 Szandra Pergel 11 6 3 9 4 8 Georgina Póta 11 11 14 11
Yumeno Soma 4 11 11 11 11 Yumeno Soma 4 9 8 7
Lin Chia-hsuan 11 6 6 11 8 5 8 Georgina Póta 11 11 11 11
8 Georgina Póta 9 11 11 9 11 11
Section 2
First round Second round Third round Quarterfinals
7 Shan Xiaona 5 11 11 11 10 7 8
Hu Limei 11 5 6 5 12 11 11   Hu Limei 11 11 11 11
Huang Yingqi 9 11 4 11 11 13 Huang Yingqi 7 2 7 9
29 Stéphanie Loeuillette 11 3 11 8 5 11   Hu Limei 12 11 7 11 6 11
23 Dóra Madarász 3 3 1 2 Kuai Man 10 9 11 5 11 5
Kuai Man 11 11 11 11 Kuai Man 11 7 11 12 10 11
Andrea Todorović 6 11 6 11 11 10 7 10 Britt Eerland 6 11 7 10 12 6
10 Britt Eerland 11 1 11 9 8 12 11 Hu Limei 10 13 13 11 6 14 11
16 Sabine Winter 9 7 11 11 8 7 3 Saki Shibata 12 11 15 8 11 12 6
Su Pei-ling 11 11 9 3 11 11 Su Pei-ling 11 6 11 11 11
Irina Ciobanu 25 Linda Bergstrom 6 11 7 7 7
25 Linda Bergstrom w/o Su Pei-ling 4 12 11 5 7
31 Lily Zhang 10 11 11 11 11 3 Saki Shibata 11 14 8 11 11
Valeria Shcherbatykh 12 5 5 4 0r 31 Lily Zhang 6 9 7 11 5
Kim Vermaas 6 9 7 9 3 Saki Shibata 11 11 11 7 11
3 Saki Shibata 11 11 11 11

Bottom half

Section 3
First round Second round Third round Quarterfinals
4 Elizabeta Samara 11 11 11 11
Haruna Ojio 4 8 6 8 4 Elizabeta Samara 11 6 17 11 11
Nadezhda Bogdanova 8 11 11 11 8 11 11 Nadezhda Bogdanova 5 11 15 7 7
27 Rachel Moret 11 7 8 8 11 13 7 4 Elizabeta Samara 8 9 11 8 8
24 Olga Vorobeva 6 9 6 7 Li Jiayuan 11 11 7 11 11
Li Jiayuan 11 11 11 11   Li Jiayuan 11 11 10 11 5 11
Ayami Narumoto 11 11 6 11 11 Ayami Narumoto 6 6 12 6 11 6
13 Wu Yue 6 9 11 5 7 Li Jiayuan 11 16 15 11 10 11
9 Soo Wai Yam Minnie 15 11 11 9 16 11 5 Miyu Kato 7 14 17 4 12 5
Daria Trigolos 13 5 13 11 14 9 9 Soo Wai Yam Minnie 11 11 11 11
Adina Diaconu 11 5 11 11 11 Adina Diaconu 8 5 5 7
30 Debora Vivarelli 5 11 7 4 7 9 Soo Wai Yam Minnie 11 9 11 12 10 10 9
26 Dana Čechová 7 10 7 9 5 Miyu Kato 8 11 7 10 12 12 11
Wu Yangchen 11 12 11 11 Wu Yangchen 7 11 11 7 6 11 7
Laura Gasnier 11 6 14 9 11 10 7 5 Miyu Kato 11 9 8 11 11 9 11
5 Miyu Kato 6 11 12 11 4 12 11
Section 4
First round Second round Third round Quarterfinals
6 Honoka Hashimoto 11 11 11 11
Liu Yangzi 5 7 8 6 6 Honoka Hashimoto 9 11 9 11 12 11 11
Chen Yi 12 11 11 11 Chen Yi 11 3 11 5 14 8 6
28 Mariia Tailakova 10 8 2 9 6 Honoka Hashimoto 11 11 8 12 11 11 11
18 Ganna Gaponova 11 11 8 11 9 11 Natalia Bajor 6 13 11 14 5 3 8
Krittwika Roy 6 7 11 5 11 3 18 Ganna Gaponova 15 11 9 8 11 8 10
Natalia Bajor 11 11 9 11 11 Natalia Bajor 13 5 11 11 6 11 12
14 Dina Meshref 4 9 11 6 7 6 Honoka Hashimoto 12 7 4 5 11 11 11
15 Natalia Partyka 2 7 11 6 Fan Siqi 10 11 11 11 7 4 8
Fan Siqi 11 11 13 11   Fan Siqi 6 11 11 11 11 11
Guo Yuhan 11 11 11 11 11 Guo Yuhan 11 5 8 13 2 9
22 Bruna Takahashi 13 6 2 4 9 Fan Siqi 9 11 13 11 11
17 Satsuki Odo 6 11 9 11 11 11 2 Hitomi Sato 11 9 11 5 8
Ma Wenting 11 8 11 7 9 6 17 Satsuki Odo 11 6 11 12 6 10 9
Tatiana Kukuľková 2 11 4 8 4 2 Hitomi Sato 9 11 9 10 11 12 11
2 Hitomi Sato 11 9 11 11 11

Finals

Semifinals Final
11 Hina Hayata 10 11 11 11 11
Hu Limei 12 4 9 6 6 11 Hina Hayata 9 8 11 12 11 8 11
Li Jiayuan 11 2 6 8 3 6 Honoka Hashimoto 11 11 4 10 3 11 8
6 Honoka Hashimoto 7 11 11 11 11

[3]

Men's doubles

Seeds

  1. Nandor Ecseki / Adam Szudi (Semifinals)
  2. Liang Jingkun / Lin Gaoyuan (Semifinals)
  3. Martin Allegro / Florent Lambiet (First round)
  4. Marek Badowski / Patryk Zatowka (First round)
  5. Sanil Shetty / Manav Vikash Thakkar (First round)
  6. Anthony Amalraj / Harmeet Desai (First round)
  7. Laurens Devos / Robin Devos (First round)
  8. Diogo Carvalho / João Geraldo (Quarterfinals)

Draw

First round Quarterfinals Semifinals Final
1 Nandor Ecseki
Adam Szudi
11 11 4 11
Cristian Pletea
Rareş Şipoş
6 6 11 7 1 Nandor Ecseki
Adam Szudi
11 12 11
Tomáš Polanský
Pavel Širůček
9 4 6 8 Diogo Carvalho
João Geraldo
6 10 9
8 Diogo Carvalho
João Geraldo
11 11 11 1 Nandor Ecseki
Adam Szudi
11 8 8 6
7 Laurens Devos
Robin Devos
9 8 7 Shunsuke Togami
Yukiya Uda
9 11 11 11
Samuel Kaluzny
Ľubomír Pištej
11 11 11   Samuel Kaluzny
Ľubomír Pištej
11 10 11 13 5
Shunsuke Togami
Yukiya Uda
11 13 11 11 Shunsuke Togami
Yukiya Uda
1 12 13 11 11
4 Marek Badowski
Patryk Zatowka
9 15 9 8   Shunsuke Togami
Yukiya Uda
11 5 6 7
3 Martin Allegro
Florent Lambiet
8 11 8 11 7 Cao Wei
Xu Yingbin
5 11 11 11
Kilian Ort
Qiu Dang
11 7 11 5 11   Kilian Ort
Qiu Dang
6 5 2
Cao Wei
Xu Yingbin
11 11 11 Cao Wei
Xu Yingbin
11 11 11
6 Anthony Amalraj
Harmeet Desai
6 7 8 Cao Wei
Xu Yingbin
14 11 6 11
5 Sanil Shetty
Manav Vikash Thakkar
6 7 6 2 Liang Jingkun
Lin Gaoyuan
12 7 11 9
Yuki Matsuyama
Masaki Takami
11 11 11 Yuki Matsuyama
Masaki Takami
6 3 2
Li Hsin-yang
Sun Chia-hung
6 13 11 7 5 2 Liang Jingkun
Lin Gaoyuan
11 11 11
2 Liang Jingkun
Lin Gaoyuan
11 11 9 11 11

[4]

Women's doubles

Seeds

  1. Ng Wing Nam / Soo Wai Yam Minnie (First round)
  2. Satsuki Odo / Saki Shibata (Quarterfinals)
  3. Wu Yue / Lily Zhang (First round)
  4. Dóra Madarász / Szandra Pergel (Final)
  5. Daniela Dodean / Elizabeta Samara (Semifinals)
  6. Natalia Bajor / Natalia Partyka (Quarterfinals)
  7. Dina Meshref / Debora Vivarelli (First round)
  8. Leila Oliveira / Shao Jieni (Quarterfinals)

Draw

First round Quarterfinals Semifinals Final
1 Ng Wing Nam
Soo Wai Yam Minnie
7 11 12 6
Huang Yu-wen
Li Yu-jhun
11 3 14 11 Huang Yu-wen
Li Yu-jhun
11 12 11 11
Nadezhda Bogdanova
Daria Trigolos
13 7 7 8 6 Natalia Bajor
Natalia Partyka
9 14 9 9
6 Natalia Bajor
Natalia Partyka
11 11 11 11   Huang Yu-wen
Li Yu-jhun
6 8 9
7 Dina Meshref
Debora Vivarelli
11 7 7 11 9 Fan Siqi
Yang Huijing
11 11 11
Huang Hsin
Huang Yu-chiao
9 11 11 9 11   Huang Hsin
Huang Yu-chiao
5 10 6
Fan Siqi
Yang Huijing
11 7 11 11 Fan Siqi
Yang Huijing
11 12 11
3 Wu Yue
Lily Zhang
7 11 3 8 Fan Siqi
Yang Huijing
8 3 11 11 11
4 Dóra Madarász
Szandra Pergel
11 11 4 11 4 Dóra Madarász
Szandra Pergel
11 11 6 9 2
Stéphanie Loeuillette
Yuan Jianan
5 8 11 9 4 Dóra Madarász
Szandra Pergel
7 11 11 11
Filippa Bergand
Linda Bergstrom
6 9 11 11 4 8 Leila Oliveira
Shao Jieni
11 6 7 7
8 Leila Oliveira
Shao Jieni
11 11 2 9 11 4 Dóra Madarász
Szandra Pergel
3 11 11 13 13
5 Daniela Dodean
Elizabeta Samara
11 15 6 11 5 Daniela Dodean
Elizabeta Samara
11 4 6 15 11
Haruna Ojio
Yumeno Soma
9 13 11 3 5 Daniela Dodean
Elizabeta Samara
11 11 9 11
Charlotte Carey
Tatiana Kukuľková
8 1 1 2 Satsuki Odo
Saki Shibata
4 5 11 9
2 Satsuki Odo
Saki Shibata
11 11 11

[5]

Mixed doubles

Seeds

  1. Lin Gaoyuan / Liu Shiwen (Champions)
  2. Ľubomír Pištej / Tatiana Kukuľková (Final)
  3. Omar Assar / Dina Meshref (First round)
  4. Laurens Tromer / Britt Eerland (First round)
  5. Adam Szudi / Szandra Pergel (Quarterfinals)
  6. Gaston Alto / Camila Arguelles (First round)
  7. Diogo Carvalho / Shao Jieni (First round)
  8. Wang Chuqin / Yang Huijing (Quarterfinals)

Draw

First round Quarterfinals Semifinals Final
1 Lin Gaoyuan
Liu Shiwen
11 11 11
Marek Badowski
Natalia Bajor
4 6 9 1 Lin Gaoyuan
Liu Shiwen
11 11 11
Tristan Flore
Laura Gasnier
11 5 10 8 5 Adam Szudi
Szandra Pergel
7 9 9
5 Adam Szudi
Szandra Pergel
2 11 12 11 1 Lin Gaoyuan
Liu Shiwen
11 7 11 13
6 Gaston Alto
Camila Arguelles
8 12 3 6 Nandor Ecseki
Dóra Madarász
3 11 8 11
Kilian Ort
Wan Yuan
11 10 11 11   Kilian Ort
Wan Yuan
11 9 4 8
Nandor Ecseki
Dóra Madarász
11 11 11 Nandor Ecseki
Dóra Madarász
5 11 11 11
4 Laurens Tromer
Britt Eerland
9 8 5 1 Lin Gaoyuan
Liu Shiwen
11 11 11
3 Omar Assar
Dina Meshref
2 Ľubomír Pištej
Tatiana Kukuľková
8 6 4
Li Hsin-yang
Lin Chia-hsuan
w/o   Li Hsin-yang
Lin Chia-hsuan
5 4 11 11 8
Aleksandar Karakašević
Izabela Lupulesku
11 5 14 11 Aleksandar Karakašević
Izabela Lupulesku
11 11 8 8 11
7 Diogo Carvalho
Shao Jieni
5 11 12 9 Aleksandar Karakašević
Izabela Lupulesku
7 11 11 8 6
8 Wang Chuqin
Yang Huijing
11 11 11 2 Ľubomír Pištej
Tatiana Kukuľková
11 7 3 11 11
Patryk Zatowka
Natalia Partyka
2 6 3 8 Wang Chuqin
Yang Huijing
9 5 11 13 8
Thomas Grininger
Karoline Mischek
9 11 5 10 2 Ľubomír Pištej
Tatiana Kukuľková
11 11 5 11 11
2 Ľubomír Pištej
Tatiana Kukuľková
11 7 11 12

[6]

gollark: Why? Causality is irritating. I want a time machine.
gollark: Since, IIRC, you cannot charge more to credit card users, and they charge transaction fees, this effectively works as a really indirected tax on all products ever.
gollark: In the UK, there are better consumer protections on credit cards for what I am sure are horrific historical reasons.
gollark: Brevity good, actually.
gollark: "Correlated" doesn't mean "one causes all change in the other even in extreme circumstances".

References

  1. "2019 ITTF Challenge Series Portugal Open / Prospectus" (PDF). ITTF. Retrieved 13 February 2019.
  2. "2019 Portugal Open / Men's Singles" (PDF). ITTF. Retrieved 18 February 2019.
  3. "2019 Portugal Open / Women's Singles" (PDF). ITTF. Retrieved 18 February 2019.
  4. "2019 Portugal Open / Men's Doubles" (PDF). ITTF. Retrieved 18 February 2019.
  5. "2019 Portugal Open / Women's Doubles" (PDF). ITTF. Retrieved 18 February 2019.
  6. "2019 Portugal Open / Mixed Doubles" (PDF). ITTF. Retrieved 18 February 2019.
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