2025 Nonthaburi Challenger II – Singles

Singles
2025 Nonthaburi Challenger II
Champion	Rio Noguchi
Runner-up	Cui Jie
Score	7–6(11–9), 6–2

Main article: 2025 Nonthaburi Challenger II

Aslan Karatsev was the defending champion but lost in the second round to Marat Sharipov.

Rio Noguchi won the title after defeating Cui Jie 7–6^(11–9), 6–2 in the final.

Seeds

1. Hsu Yu-hsiou (second round)
2. Francesco Maestrelli (second round)
3. Gonzalo Oliveira (withdrew)
4. Bai Yan (first round)
5. Marek Gengel (first round, retired)
6. Sun Fajing (first round)
7. Geoffrey Blancaneaux (first round)
8. Rémy Bertola (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
		Rio Noguchi	7	64	6
		Murphy Cassone	5	77	3
									Rio Noguchi	711	6
									Cui Jie	69	2
		Marat Sharipov	6	3	66
		Cui Jie	3	6	78

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	Y-h Hsu	6	6
	Q	K Isomura	2	1				1	Y-h Hsu	2	1
	WC	M Jones	63	6	6			WC	M Jones	6	6
	Q	B Paire	77	3	4										WC	M Jones	6	1	0
	WC	Thanapet Chanta	5	3												R Noguchi	3	6	6
		R Noguchi	7	6					R Noguchi	6	6
		C Denolly	79	4	6				C Denolly	3	3
	6	F Sun	67	6	4																		R Noguchi	7	64	6
	LL	N Oberleitner	4	65																			M Cassone	5	77	3
	Q	J Paul	6	77				Q	J Paul	6	6
		E Dalla Valle	6	6					E Dalla Valle	3	4
	Q	Hikaru Shiraishi	0	2											Q	J Paul	63	63
		O Prihodko	6	3	4											M Cassone	77	77
		Andre Ilagan	3	6	6				A Ilagan	2	3
		M Cassone	6	6					M Cassone	6	6
	8	R Bertola	4	1

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	M Gengel	1r
		H Moriya	5						H Moriya	4	4
	Q	Y Takahashi	2	78	3			Q	Y Takahashi	6	6
		M Imamura	6	66	1r										Q	Y Takahashi	3	6	2
		Marat Sharipov	6	6												M Sharipov	6	4	6
	Q	Z Kolář	3	4					M Sharipov	77	5	6
		A Karatsev	7	2	77				A Karatsev	62	7	4
	4	Y Bai	5	6	62																		M Sharipov	6	3	66
	7	G Blancaneaux	0	4																			J Cui	3	6	78
	Alt	D Michalski	6	6				Alt	D Michalski	1	6	77
		J Sels	77	6					J Sels	6	1	61
		C Tabur	64	3											Alt	D Michalski	6	3	64
	WC	W Trongcharoenchaikul	4	2												J Cui	2	6	77
		J Cui	6	6					J Cui	6	6
		Christian Langmo	6	1	3			2	F Maestrelli	4	2
	2	F Maestrelli	4	6	6

External links

• Main draw
• Qualifying draw