| Singles | |
|---|---|
| 2024 Yokkaichi Challenger | |
| Champion |  Rei Sakamoto |
| Runner-up |  Christoph Negritu |
| Score | 1–6, 6–3, 6–4 |
Zizou Bergs was the defending champion [1] but chose not to defend his title.
Rei Sakamoto won the title after defeating Christoph Negritu 1–6, 6–3, 6–4 in the final. [2]
Yoshihito Nishioka (second round, withdrew)
Mattia Bellucci (first round) Yasutaka Uchiyama (withdrew)
Coleman Wong (second round)
Omar Jasika (second round) Li Tu (quarterfinals) Sho Shimabukuro (second round) Yuta Shimizu (quarterfinals)
Hsu Yu-hsiou (withdrew)| Semifinals | Final | ||||||||||||
| Shintaro Mochizuki | 2 | 6 | 4 | ||||||||||
| WC | Rei Sakamoto | 6 | 4 | 6 | |||||||||
| WC | Rei Sakamoto | 1 | 6 | 6 | |||||||||
| Q | Christoph Negritu | 6 | 3 | 4 | |||||||||
| Philip Sekulic | 0 | 78 | 6r | ||||||||||
| Q | Christoph Negritu | 6 | 66 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Y Nishioka | 6 | 6 | ||||||||||||||||||||||||
| Q | H Moriya | 4 | 3 | 1 | Y Nishioka | ||||||||||||||||||||||
| S Mochizuki | 7 | 6 | S Mochizuki | w/o | |||||||||||||||||||||||
| J McCabe | 5 | 4 | S Mochizuki | 6 | 1 | 6 | |||||||||||||||||||||
 E Ymer | 77 | 6 | 6 | L Tu | 4 | 6 | 4 | ||||||||||||||||||||
 A Zakharov | 65 | 4 | E Ymer | 4 | 6 | 4 | |||||||||||||||||||||
| WC | Yua Taka | 2 | 3 | 6 | L Tu | 6 | 3 | 6 | |||||||||||||||||||
| 6 | L Tu | 6 | 6 | S Mochizuki | 2 | 6 | 4 | ||||||||||||||||||||
| Q |  P Henning | 4 | 3 | WC | R Sakamoto | 6 | 4 | 6 | |||||||||||||||||||
| WC | R Sakamoto | 6 | 6 | WC | R Sakamoto | 711 | 6 | ||||||||||||||||||||
| D Sweeny | 610 | 2 | Alt | N Nakagawa | 69 | 3 | |||||||||||||||||||||
| Alt | N Nakagawa | 712 | 6 | WC | R Sakamoto | 6 | 77 | ||||||||||||||||||||
| K Uchida | 6 | 6 | K Uchida | 4 | 63 | ||||||||||||||||||||||
| WC | K Isomura | 0 | 1 | K Uchida | 2 | 6 | 6 | ||||||||||||||||||||
| Q | Ryotaro Taguchi | 4 | 1 | 7 | S Shimabukuro | 6 | 4 | 2 | |||||||||||||||||||
| 7 | S Shimabukuro | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | Y Shimizu | 7 | 6 | ||||||||||||||||||||||||
| LL |  Alafia Ayeni | 5 | 3 | 8 | Y Shimizu | 3 | 6 | 6 | |||||||||||||||||||
| LL | Petr Bar Biryukov | 77 | 710 | LL | P Bar Biryukov | 6 | 3 | 4 | |||||||||||||||||||
| Y Demin | 63 | 68 | 8 | Y Shimizu | 3 | 1 | |||||||||||||||||||||
| Q | Y Takahashi | 3 | 2 | P Sekulic | 6 | 6 | |||||||||||||||||||||
| P Sekulic | 6 | 6 | P Sekulic | 6 | 2 | 6 | |||||||||||||||||||||
| M Imamura | 6 | 5 | 4 | 4 | C Wong | 3 | 6 | 4 | |||||||||||||||||||
| 4 | C Wong | 2 | 7 | 6 | P Sekulic | 0 | 78 | 6r | |||||||||||||||||||
| 5 | O Jasika | 6 | 6 | Q | C Negritu | 6 | 66 | 6 | |||||||||||||||||||
| Kris van Wyk | 1 | 2 | 5 | O Jasika | 4 | 6 | 4 | ||||||||||||||||||||
 B Hassan | 6 | 5 | 6 | B Hassan | 6 | 0 | 6 | ||||||||||||||||||||
| Q |  J Paul | 3 | 7 | 2 | B Hassan | 1r | |||||||||||||||||||||
| T-l Wu | 4 | 3 | Q | C Negritu | 4 | ||||||||||||||||||||||
| Federico Cinà | 6 | 6 | F Cinà | 5 | 2 | ||||||||||||||||||||||
| Q | C Negritu | 61 | 6 | 7 | Q | C Negritu | 7 | 6 | |||||||||||||||||||
| 2 | M Bellucci | 77 | 2 | 5 | |||||||||||||||||||||||
Jürgen Melzer was the defending champion. He successfully defended his last year's title by beating Lucky loser and his compatriot, Andreas Haider-Maurer 6–7(10–12), 7–6(7–4), 6–4 in the final match.
Yasutaka Uchiyama was the defending champion but chose not to defend his title.
Andrej Martin was the defending champion and successfully defended his title, defeating Stefano Travaglia 6–4, 6–4 in the final.
Lloyd Harris was the defending champion but chose not to defend his title.
Kyle Edmund was the defending champion but chose not to defend his title.
Reilly Opelka was the defending champion, but withdrew from the event.
Grégoire Barrère was the defending champion but lost in the final to Zizou Bergs.
Lorenzo Giustino was the defending champion but lost in the first round to Timofey Skatov.
Nuno Borges was the defending champion but chose not to defend his title.
Ruben Bemelmans was the defending champion but lost in the quarterfinals to Zizou Bergs.
Andrey Rublev defeated Félix Auger-Aliassime in the final, 7–5, 7–6(7–4) to win the singles title at the 2022 Open 13 Provence.
Zizou Bergs was the defending champion but lost in the quarterfinals to Quentin Halys.
Ugo Humbert was the defending champion but chose not to defend his title.
Alexandre Müller was the defending champion but chose not to defend his title.
Dominik Koepfer was the defending champion but lost in the final to Liam Draxl.
Vasek Pospisil was the defending champion but chose not to defend his title.
Otto Virtanen was the defending champion but lost in the semifinals to Arthur Rinderknech.
Pedro Boscardin Dias and Gustavo Heide were the defending champions but only Boscardin Dias chose to defend his title, partnering Gabriel Roveri Sidney. They lost in the first round to Luís Britto and Paulo André Saraiva dos Santos.
Daniel Altmaier was the defending champion but chose not to defend his title.
Zizou Bergs was the defending champion and successfully defended his title after defeating Mitchell Krueger 6–4, 7–6(11–9) in the final.