2026 Nonthaburi Challenger – Singles

Singles
2026 Nonthaburi Challenger
Champion Rio Noguchi
Runner-up Marek Gengel
Score6–3, 6–4

Brandon Holt was the defending champion[1] but chose not to defend his title.

Rio Noguchi won the title after defeating Marek Gengel 6–3, 6–4 in the final.[2]

Seeds

  1. Zdeněk Kolář (semifinals)
  2. Lorenzo Giustino (quarterfinals, withdrew)
  3. Rio Noguchi (champion)
  4. Rodrigo Pacheco Méndez (first round)
  5. Kaichi Uchida (second round)
  6. Joel Schwärzler (semifinals)
  7. Andres Martin (first round)
  8. Sun Fajing (second round)

Draw

Key

Finals

Semifinals Final
          
1 Zdeněk Kolář 2 5
Marek Gengel 6 7
Marek Gengel 3 4
3 Rio Noguchi 6 6
3 Rio Noguchi 6 6
6 Joel Schwärzler 2 2

Top half

First round Second round Quarterfinals Semifinals
1 Z Kolář 7 7
LL A Weber 5 5 1 Z Kolář 7 6
WC K Samrej 6 6 WC K Samrej 5 4
Q Hikaru Shiraishi 3 4 1 Z Kolář 7 3 6
M Jones 4 4 Q T Colson 5 6 1
Q T Colson 6 6 Q T Colson 77 3 6
Q Hayato Matsuoka 2 6 2 8 F Sun 65 6 2
8 F Sun 6 2 6 1 Z Kolář 2 5
4 R Pacheco Méndez 7 4 5 M Gengel 6 7
R Bertrand 5 6 7 R Bertrand 3 4
S Fomin 7 3 7 S Fomin 6 6
Renta Tokuda 5 6 5 S Fomin 1 4
Y Shimizu 3 77 6 M Gengel 6 6
Q T Ichikawa 6 63 4 Y Shimizu 6 1 4
M Gengel 6 6 M Gengel 3 6 6
7 A Martin 2 4

Bottom half

First round Second round Quarterfinals Semifinals
5 K Uchida 6 5 6
C Denolly 2 7 3 5 K Uchida 1 2
Q Koki Matsuda 3 62 M Sharipov 6 6
M Sharipov 6 77 M Sharipov 4 4
WC Pawit Sornlaksup 1 1 3 R Noguchi 6 6
T-l Wu 6 6 T-l Wu 6 2 4
Shin San-hui 1 4 3 R Noguchi 3 6 6
3 R Noguchi 6 6 3 R Noguchi 6 6
6 J Schwärzler 6 4 77 6 J Schwärzler 2 2
Q H Moriya 3 6 65 6 J Schwärzler 3 6 6
H Chung 6 65 3 F Bax 6 4 0
F Bax 3 77 6 6 J Schwärzler w/o
WC W Trongcharoenchaikul 3 6 2 2 L Giustino
A Santillan 6 4 6 A Santillan 4 5
Matthew Dellavedova 4 2 2 L Giustino 6 7
2 L Giustino 6 6

References

  1. ^ Heer, Florian (January 19, 2025). "Holt Hoists Maiden Challenger Trophy At Bangkok Open".
  2. ^ "Noguchi Notches Second Bangkok Open Title". tennistourtalk.com. Retrieved 18 January 2026.