Kazumasa SAKAI 
Biography
Birthday: 13/02/1990 (33)
Height: 179 cm
Height: 179 cm
Kazumasa Sakai (坂井一将, Sakai Kazumasa, born 13 February 1990) is a Japanese badminton player who is single specialist.
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Qualification:
vs Country:
Partner:
vs Rank:
vs Hand :
vs Height :
Win/Loss: 5-13 (Walkovers: 0-1)
All Matches:
*Ranks in brackets and marked with asterisk are unofficial
| Category | Round | Rank* | Player | Score | Player | Rank* | Duration |
|---|---|---|---|---|---|---|---|
| Korea Masters 2019 19/11/2019-24/11/2019 | |||||||
| MS | Round 1 | 20 |  Sameer VERMA |
11-8 Ret. | Kazumasa SAKAI |
69 | 9 |
| YUZU Indonesia Masters 2019 2019 1/10/2019-6/10/2019 | |||||||
| MS | Round 2 | 507 |  Wisnu Yuli PRASETYO |
21-9 / 21-11 | Kazumasa SAKAI |
48 | 25 |
| Chinese Taipei Open 2019 3/9/2019-8/9/2019 | |||||||
| MS | Round 1 | 38 | Sourabh VERMA |
22-20 / 21-13 | Kazumasa SAKAI |
44 | 38 |
| Akita Masters 2019 13/8/2019-18/8/2019 | |||||||
| MS | Round 2 | 43 | Kazumasa SAKAI |
22-20 / 21-12 | Kodai NARAOKA |
71 | 49 |
| MS | Round 3 | 82 | Yu IGARASHI |
21-23 / 21-16 / 21-16 | Kazumasa SAKAI |
43 | 70 |
| US Open 2019 9/7/2019-14/7/2019 | |||||||
| MS | Round 1 | 42 | Kazumasa SAKAI |
21-13 / 21-7 |  Timothy LAM |
140 | 29 |
| MS | Round 2 | 56 |  Tanongsak SAENSOMBOONSUK |
21-14 / 21-12 | Kazumasa SAKAI |
42 | 38 |
| Canada Open 2019 2/7/2019-7/7/2019 | |||||||
| MS | Round 2 | 62 |  HEO Kwang Hee |
21-9 / 21-14 | Kazumasa SAKAI |
38 | 28 |
| Australian Open 2019 4/6/2019-9/6/2019 | |||||||
| MS | Round 1 | 39 | Kazumasa SAKAI |
21-17 / 21-15 |  LEE Cheuk Yiu |
34 | 37 |
| MS | Round 2 | 39 | Kazumasa SAKAI |
19-21 / 21-15 / 21-17 | Kantaphon WANGCHAROEN |
17 | 74 |
| MS | Quarter-final | 32 |  WANG Tzu Wei |
21-18 / 21-16 | Kazumasa SAKAI |
39 | 44 |
| New Zealand Open 2019 30/4/2019-5/5/2019 | |||||||
| MS | Round 1 | 38 | Kazumasa SAKAI |
14-21 / 21-11 / 21-15 |  ZHOU Zeqi |
40 | 61 |
| MS | Round 2 | 21 |  LEE Zii Jia |
23-21 / 21-16 | Kazumasa SAKAI |
38 | 49 |
| Badminton Asia Championships 2019 23/4/2019-28/4/2019 | |||||||
| MS | Round 1 | 15 | Sameer VERMA |
21-13 / 17-21 / 21-18 | Kazumasa SAKAI |
38 | 67 |
| Osaka International Challenge 2019 3/4/2019-7/4/2019 | |||||||
| MS | Round 1 | 295 | KIM DongHun |
W.O. | Kazumasa SAKAI |
38 | 4 |
| All England 2019 6/3/2019-10/3/2019 | |||||||
| MS | Round 1 | 30 |  Jan O JORGENSEN |
21-10 / 21-17 | Kazumasa SAKAI |
40 | 30 |
| German Open 2019 26/2/2019-3/3/2019 | |||||||
| MS | Round 1 | 36 | LEE Cheuk Yiu |
21-8 / 21-16 | Kazumasa SAKAI |
40 | 31 |
| Indonesian Masters 2019 22/1/2019-27/1/2019 | |||||||
| MS | Round 1 | 40 | Sitthikom THAMMASIN |
21-11 / 21-19 | Kazumasa SAKAI |
32 | 37 |
| Malaysia Masters 2019 15/1/2019-20/1/2019 | |||||||
| MS | Round 1 | 6 | Viktor AXELSEN |
21-16 / 21-5 | Kazumasa SAKAI |
32 | 33 |
Opponent:
| LEE Cheuk Yiu | 2 | 1 | 1 | 2019/2/27 | 2019/6/5 |
| Sameer VERMA | 2 | 0 | 2 | 2019/4/24 | 2019/11/20 |
| Viktor AXELSEN | 1 | 0 | 1 | 2019/1/16 | 2019/1/16 |
| Sitthikom THAMMASIN | 1 | 0 | 1 | 2019/1/23 | 2019/1/23 |
| Jan O JORGENSEN | 1 | 0 | 1 | 2019/3/6 | 2019/3/6 |
| ZHOU Zeqi | 1 | 1 | 0 | 2019/5/1 | 2019/5/1 |
| LEE Zii Jia | 1 | 0 | 1 | 2019/5/2 | 2019/5/2 |
| Kantaphon WANGCHAROEN | 1 | 1 | 0 | 2019/6/6 | 2019/6/6 |
| WANG Tzu Wei | 1 | 0 | 1 | 2019/6/7 | 2019/6/7 |
| HEO Kwang Hee | 1 | 0 | 1 | 2019/7/3 | 2019/7/3 |
| Timothy LAM | 1 | 1 | 0 | 2019/7/10 | 2019/7/10 |
| Tanongsak SAENSOMBOONSUK | 1 | 0 | 1 | 2019/7/11 | 2019/7/11 |
| Kodai NARAOKA | 1 | 1 | 0 | 2019/8/14 | 2019/8/14 |
| Yu IGARASHI | 1 | 0 | 1 | 2019/8/15 | 2019/8/15 |
| Sourabh VERMA | 1 | 0 | 1 | 2019/9/4 | 2019/9/4 |
| Wisnu Yuli PRASETYO | 1 | 0 | 1 | 2019/10/2 | 2019/10/2 |
MS
| Tournament | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | Best |
|---|---|---|---|---|---|---|---|---|---|---|
| World Championships | - | - | - | - | - | - | - | R1 | - | R1 ('18) |
| All England | - | - | - | - | - | - | QF | - | R1 | QF ('17) |
| Indonesia Open | - | - | R2 | - | - | - | F | R2 | - | F ('17) |
| Malaysia Open | - | - | - | - | - | - | R1(Q) | R1 | - | R1 ('18) |
| Japan Open | R1(Q) | QF | R1 | R1(Q) | R1(Q) | R1(Q) | R2(Q) | R1 | - | QF ('12) |
| Denmark Open | - | - | - | - | - | - | R2 | R1 | - | R2 ('17) |
| French Open | - | - | R1 | - | - | - | R1 | R2 | - | R2 ('18) |
| Victor China Open | - | - | R1(Q) | - | - | R1 | R1 | R1 | - | R1 ('16 '17 '18) |
| Fuzhou China Open | - | - | QF | - | - | QF | - | R2 | - | QF ('13 '16) |
| Chinese Taipei Open | - | - | - | QF | - | - | - | - | R1 | QF ('14) |
| Swiss Open | - | R3 | R3 | - | QF | - | - | - | - | QF ('15) |
| Thailand Open | R2 | - | - | - | R3 | R3 | - | R1 | - | R3 ('15 '16) |
| Hong Kong Open | - | - | R1 | R2(Q) | QF | R2 | QF | R1 | - | QF ('15 '17) |
| German Open | - | - | R2 | - | QF | - | R1 | - | R1 | QF ('15) |
| Russia Open | - | W | - | SF | - | - | - | - | - | W ('12) |
| Canada Open | SF | QF | R3 | - | - | - | R1 | - | R2 | SF ('11) |
| SINGAPORE OPEN | - | - | R2 | - | - | - | R1(Q) | - | - | R2 ('13) |
| Australian Open | - | - | R2 | R1 | R2(Q) | - | R2(Q) | - | QF | QF ('19) |
| New Zealand Open | - | - | - | - | - | R2 | - | - | R2 | R2 ('16 '19) |
| India Open | - | - | R2 | - | - | R1 | R1 | - | - | R2 ('13) |
| US Open | R3 | - | R3 | - | R1 | QF | R1 | - | R2 | QF ('16) |
| Korea Open | - | - | - | R2 | R2(Q) | R1 | QF | R2 | - | QF ('17) |
| Korea Masters | - | - | - | SF | R3 | - | - | - | R1 | SF ('14) |
| Indonesian Masters | R2 | - | - | - | - | - | - | F | R1 | F ('18) |
| Macau Open | - | - | - | R3 | - | - | - | - | - | R3 ('14) |
| Malaysia Masters | - | - | - | R3 | R1 | - | - | R1 | R1 | R3 ('14) |
| Badminton Asia Championships | R2 | - | R3 | - | - | - | R1 | R1 | R1 | R3 ('13) |
| Akita Masters | - | - | - | - | - | - | - | - | R3 | R3 ('19) |
Ranking History:
Ranking List:
Partner:
Partner: