Giselle Isabella Guillen

2026

J300 NONTHABURI	[10]	2R
J200 NONTHABURI	[10]	2R
AUSTRALIAN OPEN JUNIOR		1R
J300 TRARALGON		1R

2025

J500 FORTLAUDERDALE		1R
J300 BRADENTON		1R
J500 OSAKA	[13]	Quarter
J200 SYDNEY-2	[10]	Win
J200 SYDNEY	[6]	Win
J300 NONTHABURI-2		1R
J300 KUCHING		3R
J200 KUALALUMPUR		3R
J300 TRARALGON		1R

2024

J100 CHRISTCHURCH	[3]	Win
J100 SEOUL	[2]	Quarter
J100 ANDONG	[3]	Quarter
J200 SYDNEY	[10]	Quarter
J300 NONTHABURI-2		2R
J200 KUALALUMPUR		1R
J300 KUCHING		1R
J100 CANBERRA	[2]	Quarter
J100 MORNINGTON	[1]	Final
J100 BRISBANE-2	[6]	3R
AUSTRALIAN OPEN JUNIOR		1R
J300 TRARALGON		1R

2023

J200 KUALALUMPUR		3R
J300 WANJU		2R
J100 KUALALUMPUR	[11]	3R
J100 SARAWAK	[11]	Quarter
J200 SYDNEY-2	[11]	Final
J200 SYDNEY	[8]	2R
J60 GOLDCOAST-2	[6]	2R
J60 GOLDCOAST	[6]	Quarter
J60 PLANTATION	[5]	Quarter
J100 CORALGABLES	[14]	1R
J100 DELRAYBEACH		1R
J100 AUCKLAND	[3]	Quarter
J60 WELLINGTON	[2]	Semi

2022

J5 PERTH	[1]	Win
J3 CHRISTCHURCH		2R
J3 AUCKLAND		2R
J2 SYDNEY		2R
J4 DARWIN		1R
J5 DARWIN		2R
J3 MORNINGTON-2		2R
J3 MORNINGTON		Quarter

Nation

AUS

Generation

Born in 2008 (17-18 years old)

World Ranking

Junior World Ranking　79th

Year-end Junior World Ranking

Rival

jizelle sibai (2-1)

[2025] J200SYDNEY 7-6 6-0
[2024] J100MORNINGTON 6-2 6-0
[2024] J100CANBERRA 6-7 1-6

reina goto (1-2)

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

scarlett dattoli (3-0)

[2024] J100CHRISTCHURCH 3-6 6-3 6-3
[2023] J200SYDNEY-2 6-1 6-4
[2022] J5PERTH 6-0 6-2

ha eum lee (2-0)

[2025] J200SYDNEY-2 6-4 6-2
[2025] J300KUCHING 6-3 6-1

ava beck (0-2)

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

Match Details

20262025202420232022

J500 OSAKA

W	1R	Miyu Nishiwaki	6-4 6-4
W	2R	Natsuki Irokawa	6-1 6-4
W	3R	Aishi Das	7-5 6-4
L	QF	Anna Pushkareva	3-6 2-6

J200 SYDNEY-2

W	2R	Summer Hupfeld	6-1 6-1
W	3R	Eva Marie Desvignes	6-4 6-3
W	QF	Yashwitha Reddy	6-3 6-0
W	SF	Ha Eum Lee	6-4 6-2
W	F	Yu-Chen Lin	6-4 6-3

J200 SYDNEY

W	2R	Taylah Lessue	4-0 4-1
W	3R	Georgia Campbell	43-5 4-1 10-5
W	QF	Lucia Gale	4-0 4-2
W	SF	Jizelle Sibai	7-6 6-0
W	F	Sarah Mildren	6-2 6-2

J300 KUCHING

W	1R	Ha Eum Lee	6-3 6-1
W	2R	Raya Kotseva	6-4 6-4
L	3R	Kamonwan Yodpetch	4-6 6-1 4-6

J200 KUALALUMPUR

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

J100 CHRISTCHURCH

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

J100 SEOUL

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

J100 ANDONG

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

J200 SYDNEY

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

J300 NONTHABURI-2

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

J100 CANBERRA

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

J100 MORNINGTON

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

J100 BRISBANE-2

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

J200 KUALALUMPUR

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

J300 WANJU

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

J100 KUALALUMPUR

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

J100 SARAWAK

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

J200 SYDNEY-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

J60 GOLDCOAST-2

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

J60 GOLDCOAST

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

J60 PLANTATION

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

J100 AUCKLAND

W	2R	Helena Guan	6-4 6-0
W	3R	Audrey Newman	6-3 7-6
L	QF	Allie Bittner	6-4 1-6 2-6

J60 WELLINGTON

W	2R	Mara Teresa Beyerle	6-0 6-1
W	3R	Sylvie Peart	6-3 6-0
W	QF	Sofia Jane Thorne	6-2 6-2
L	SF	Allie Bittner	6-3 3-6 3-6

J5 PERTH

W	1R	Mariah Stefanovic	6-0 6-1
W	2R	Scarlett Dattoli	6-0 6-2
W	QF	Jaun Yum	7-5 7-6
W	SF	Jessie Culley	3-6 6-1 6-4
W	F	Alice Stevens	6-2 6-3

J3 CHRISTCHURCH

W	1R	Nishitha Maarka	6-1 6-0
L	2R	Jelena Cvijanovic	6-3 4-6 6-7

J3 AUCKLAND

W	1R	Baihe Lin	7-6 7-6
L	2R	Renee Zhang	2-6 4-6

J2 SYDNEY

W	1R	Elizabeth Ivanov	6-2 6-1
L	2R	Bridget Mihulka	3-6 2-6

J5 DARWIN

W	1R	Sydney Stone	6-4 6-2
L	2R	Diana Badalyan	2-6 0-2

J3 MORNINGTON-2

W	1R	Cara Korhonen	6-1 6-3
L	2R	Stefani Webb	1-6 1-6

J3 MORNINGTON

W	1R	Eva Lozitskaya	6-1 6-0
W	2R	Bridget Mihulka	6-2 2-6 6-0
L	QF	Leann Serna	5-7 3-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10505, Number of registered players: 6,666, Number of registered results: 385,227