2025 Nonthaburi Challenger III – Singles

Singles
2025 Nonthaburi Challenger III
Champion	Brandon Holt
Runner-up	Vít Kopřiva
Score	6–3, 6–2

Further information: 2025 Nonthaburi Challenger III

Rio Noguchi was the defending champion but lost in the second round to Murphy Cassone.

Brandon Holt won the title after defeating Vít Kopřiva 6–3, 6–2 in the final.

Seeds

1. Vít Kopřiva (final)
2. Hugo Grenier (quarterfinals)
3. Valentin Vacherot (first round)
4. Zachary Svajda (quarterfinals)
5. Shintaro Mochizuki (second round)
6. Coleman Wong (second round)
7. Henri Squire (second round)
8. Dmitry Popko (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	1	Vít Kopřiva	6	6
	Q	Murphy Cassone	2	2
								1	Vít Kopřiva	3	2
									Brandon Holt	6	6
		Brandon Holt	6	6
	Q	Clément Tabur	2	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	V Kopřiva	6	6
		N Hardt	4	1				1	V Kopřiva	6	77
		FC Jianu	2	2				Alt	T-l Wu	4	64
	Alt	T-l Wu	6	6											1	V Kopřiva	6	6
		E Couacaud	3	2												D Svrčina	0	1
		D Svrčina	6	6					D Svrčina	6	64	6
	WC	Maximus Jones	60	0r				7	H Squire	4	77	1
	7	H Squire	77	0																		1	V Kopřiva	6	6
	3	V Vacherot	1	6	62																	Q	M Cassone	2	2
	Q	M Cassone	6	4	77			Q	M Cassone	6	6
		T Skatov	1	3				Q	R Noguchi	3	4
	Q	R Noguchi	6	6											Q	M Cassone	6	6
		S Shimabukuro	2	6	6										Alt	F Arnaboldi	4	1
		A Escoffier	6	2	1				S Shimabukuro	6	64	4
	Alt	F Arnaboldi	6	2	6			Alt	F Arnaboldi	1	77	6
	8	D Popko	1	6	1

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	C Wong	77	77
		B Hassan	62	64				6	C Wong	4	1
		B Holt	6	6					B Holt	6	6
	WC	W Trongcharoenchaikul	3	3												B Holt	67	6	6
		K Sultanov	4	6	3										4	Z Svajda	79	3	4
		Y Shimizu	6	3	6				Y Shimizu	6	3	2
	Q	F Sun	3	2				4	Z Svajda	4	6	6
	4	Z Svajda	6	6																			B Holt	6	6
	5/Alt	S Mochizuki	77	7																		Q	C Tabur	2	4
	Q	R Bertola	60	5				5/Alt	S Mochizuki	2	4
	Q	C Tabur	6	6				Q	C Tabur	6	6
	Q	F Maestrelli	2	1											Q	C Tabur	7	6
		L Neumayer	6	4	2										2	H Grenier	5	4
		E Spizzirri	3	6	6				E Spizzirri	4	4
	WC	Thanapet Chanta	2	0				2	H Grenier	6	6
	2	H Grenier	6	6

External links

• Main draw
• Qualifying draw