Giselle Isabella Guillen

2025

J300Kuching		(continue)
J200Kualalumpur		3R
J300Traralgon		1R

2024

J100Christchurch	[3]	Win
J100Seoul	[2]	Quarter
J100Andong	[3]	Quarter
J200Sydney	[10]	Quarter
J300Nonthaburi-2		2R
J200Kualalumpur		1R
J300Kuching		1R
J100Canberra	[2]	Quarter
J100Mornington	[1]	Final
J100Brisbane-2	[6]	3R
Australian Open Junior		1R
J300Traralgon		1R

2023

J200Kualalumpur		3R
J300Wanju		2R
J100Kualalumpur	[11]	3R
J100Sarawak	[11]	Quarter
J200Sydney-2	[11]	Final
J200Sydney	[8]	2R
J60Goldcoast-2	[6]	2R
J60Goldcoast	[6]	Quarter
J60Plantation	[5]	Quarter

Nation

AUS

Generation

Born in 2008 (16-17 years old)

World Ranking

Junior World Ranking　290th

Year-end Junior World Ranking

Rival

Reina Goto (1-2)

[2023] J200SYDNEY-2 2-6 6-7
[2023] J100SARAWAK 0-6 7-5 6-2
[2023] J100KUALALUMPUR 4-6 6-3 1-6

Jizelle Sibai (1-1)

[2024] J100CANBERRA 6-7 1-6
[2024] J100MORNINGTON 6-2 6-0

Ava Beck (0-2)

[2024] J100MORNINGTON 1-6 4-6
[2024] J100BRISBANE-2 6-3 4-6 3-6

Scarlett Dattoli (2-0)

[2024] J100CHRISTCHURCH 3-6 6-3 6-3
[2023] J200SYDNEY-2 6-1 6-4

Kasumi Hirayama (2-0)

[2024] J100MORNINGTON 6-1 6-3
[2023] J60GOLDCOAST-2 6-2 6-1

Match Details

2025 J200Kualalumpur

W	1R	Azuna Ichioka	6-4 7-5
W	2R	Anastasia Lizunova	5-7 6-3 6-1
L	3R	Suha Lee	3-6 2-6

2024 J100Christchurch

W	2R	Pauline Ma	6-4 3-6 6-0
W	3R	Emilie Chen	6-2 6-4
W	QF	Amy Findlay	6-1 6-1
W	SF	Katie Oliver	6-2 6-2
W	F	Scarlett Dattoli	3-6 6-3 6-3

2024 J100Seoul

W	1R	Hyewon Kim	4-6 6-2 6-5
W	2R	Gyuree Nam	6-0 6-0
L	QF	Yeri Hong	7-5 3-6 1-6

2024 J100Andong

W	1R	Eunjin Ryu	7-5 6-0
W	2R	Hyejeong Ahn	6-3 6-1
L	QF	Yeseo Park	2-6 7-5 2-6

2024 J200Sydney

W	2R	Ava-Monet Sycamore	6-1 6-1
W	3R	Yihan Qu	3-6 6-3 10-6
L	QF	Kanon Sawashiro	6-7 1-6

2024 J300Nonthaburi-2

W	1R	Malika Amirgalieva	7-6 6-3
L	2R	Shihomi Li Xuan Leong	1-6 1-6

2024 J100Canberra

W	2R	Wambui Taylor	6-2 6-0
W	3R	Leanne Abouhamad	6-2 6-2
L	QF	Jizelle Sibai	6-7 1-6

2024 J100Mornington

W	2R	Juliette Debrincat	6-2 7-5
W	3R	Jemima Williams-Phillips	6-0 6-1
W	QF	Kasumi Hirayama	6-1 6-3
W	SF	Jizelle Sibai	6-2 6-0
L	F	Ava Beck	1-6 4-6

2024 J100Brisbane-2

W	2R	Juliet Santitto	6-0 6-3
L	3R	Ava Beck	6-3 4-6 3-6

2023 J200Kualalumpur

W	1R	Hao Liang	6-1 6-0
W	2R	Dune Vaissaud	6-4 7-6
L	3R	I Wen Wan	2-6 0-6

2023 J300Wanju

W	1R	Yeo Kyung Kim	6-1 6-1
L	2R	I Wen Wan	2-6 3-6

2023 J100Kualalumpur

W	2R	Cylova Zuleyka Hukmasabiyya	6-1 6-2
L	3R	Reina Goto	4-6 6-3 1-6

2023 J100Sarawak

W	2R	Sena Yoon	6-2 6-1
W	3R	Reina Goto	0-6 7-5 6-2
L	QF	Lidia Podgorichani	7-5 3-6 6-7

2023 J200Sydney-2

W	2R	Scarlett Dattoli	6-1 6-4
W	3R	Koharu Nishikawa	6-1 4-6 6-3
W	QF	Diana Badalyan	6-4 4-6 6-2
W	SF	Gabby Gregg	7-5 6-4
L	F	Reina Goto	2-6 6-7

2023 J60Goldcoast-2

W	1R	Kasumi Hirayama	6-2 6-1
L	2R	Isabella Crossman	3-6 6-3 4-6

2023 J60Goldcoast

W	1R	Ava-Monet Sycamore	6-2 6-4
W	2R	Isabella Crossman	6-2 6-0
L	QF	Kimiko Cooper	5-7 0-6

2023 J60Plantation

W	1R	Gianna G R A C I	6-2 7-5
W	2R	Reese Calvo	6-1 6-1
W	3R	Alisa Ozgun	2-6 6-3 6-1
L	QF	Gabrielle Villegas	3-6 4-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5774, Number of registered players: 3,011, Number of registered results: 222,093

Champion	Ryo Tabata
Champion	Xinran Sun