| Singles | |
|---|---|
| 2024 Little Rock Challenger | |
| Champion |  Mitchell Krueger |
| Runner-up |  Yuta Shimizu |
| Score | 6–3, 6–4 |
Mark Lajal was the defending champion [1] but chose not to defend his title.
Mitchell Krueger won the title after defeating Yuta Shimizu 6–3, 6–4 in the final.
Alexis Galarneau (quarterfinals)
Coleman Wong (first round)
Hong Seong-chan (second round)
Hsu Yu-hsiou (first round)
Bernard Tomic (second round, retired) Mitchell Krueger (champion) Ethan Quinn (first round)
Abdullah Shelbayh (semifinals)| Semifinals | Final | ||||||||||||
| 6 | Mitchell Krueger | 3 | 6 | 6 | |||||||||
| 8 | Abdullah Shelbayh | 6 | 1 | 4 | |||||||||
| 6 | Mitchell Krueger | 6 | 6 | ||||||||||
| Yuta Shimizu | 3 | 4 | |||||||||||
| Nishesh Basavareddy | 63 | 0 | |||||||||||
| Yuta Shimizu | 77 | 6 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Galarneau | 6 | 6 | ||||||||||||||||||||||||
| H Moriya | 2 | 3 | 1 | A Galarneau | 6 | 6 | |||||||||||||||||||||
| T-l Wu | 6 | 4 | 6 | T-l Wu | 1 | 4 | |||||||||||||||||||||
 N Mejía | 3 | 6 | 1 | 1 | A Galarneau | 3 | 1 | ||||||||||||||||||||
| A Mayo | 6 | 5 | 77 | 6 | M Krueger | 6 | 6 | ||||||||||||||||||||
| N Chappell | 3 | 7 | 64 | A Mayo | 67 | 3 | |||||||||||||||||||||
| L Draxl | 3 | 6 | 4 | 6 | M Krueger | 79 | 6 | ||||||||||||||||||||
| 6 | M Krueger | 6 | 3 | 6 | 6 | M Krueger | 3 | 6 | 6 | ||||||||||||||||||
| 3 | S-c Hong | 6 | 3 | 6 | 8 | A Shelbayh | 6 | 1 | 4 | ||||||||||||||||||
| WC | M Cassone | 4 | 6 | 2 | 3 | S-c Hong | 2 | 3 | |||||||||||||||||||
| WC |  M Sasikumar | 0 | 6 | 2 | B Holt | 6 | 6 | ||||||||||||||||||||
| B Holt | 6 | 3 | 6 | B Holt | 64 | 6 | 5 | ||||||||||||||||||||
| C Williams | 6 | 2 | 6 | 8 | A Shelbayh | 77 | 2 | 7 | |||||||||||||||||||
| Q | Y Takahashi | 4 | 6 | 4 | C Williams | 4 | 6 | 4 | |||||||||||||||||||
 B Bicknell | 64 | 2 | 8 | A Shelbayh | 6 | 3 | 6 | ||||||||||||||||||||
| 8 | A Shelbayh | 77 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | E Quinn | 5 | 4 | ||||||||||||||||||||||||
| N Basavareddy | 7 | 6 | N Basavareddy | 7 | 7 | ||||||||||||||||||||||
| Q | Christian Langmo | 7 | 6 | Q | C Langmo | 5 | 5 | ||||||||||||||||||||
| R Ramanathan | 5 | 2 | N Basavareddy | 6 | 6 | ||||||||||||||||||||||
| Q |  E Escobedo | 3 | 4 | WC | T Svajda | 2 | 2 | ||||||||||||||||||||
| WC | Trevor Svajda | 6 | 6 | WC | T Svajda | 6 | 77 | ||||||||||||||||||||
| Q | A Martin | 77 | 6 | Q | A Martin | 4 | 65 | ||||||||||||||||||||
| 4 | Y-h Hsu | 61 | 2 | N Basavareddy | 63 | 0 | |||||||||||||||||||||
| 5 | B Tomic | 3 | 6 | 6 | Y Shimizu | 77 | 6 | ||||||||||||||||||||
| T-S Kwiatkowski | 6 | 2 | 3 | 5 | B Tomic | 1 | 0r | ||||||||||||||||||||
| Y Shimizu | 7 | 6 | Y Shimizu | 6 | 0 | ||||||||||||||||||||||
| Q | K Smith | 5 | 3 | Y Shimizu | 6 | 6 | |||||||||||||||||||||
| S Kozlov | 1 | 5 | Q | R Quan | 4 | 3 | |||||||||||||||||||||
| Q | Rudy Quan | 6 | 7 | Q | R Quan | 6 | 3 | 6 | |||||||||||||||||||
 A Andrade | 65 | 6 | 6 | A Andrade | 3 | 6 | 3 | ||||||||||||||||||||
| 2 | C Wong | 77 | 4 | 3 | |||||||||||||||||||||||
Kyle Edmund was the defending champion but chose not to defend his title.
John Millman was the defending champion but chose not to defend his title.
Bjorn Fratangelo was the defending champion but chose not to defend his title.
Yoshihito Nishioka was the defending champion but chose not to defend his title.
Nick Kyrgios was the defending champion, but withdrew before the tournament began.
James McGee was the defending champion but chose not to defend his title.
James Duckworth was the defending champion but chose not to defend his title.
Andrej Martin was the defending champion but chose not to defend his title.
Blaž Kavčič was the defending champion but chose not to defend his title.
Alexander Zverev was the defending champion and successfully defended his title, defeating Alex de Minaur in the final, 6–2, 6–4.
Kei Nishikori was the defending champion but chose not to defend his title.
Steve Johnson was the defending champion, but lost in the first round to Christopher Eubanks.
Jonáš Forejtek and Jiří Lehečka were the defending champions, but were no longer eligible to participate in junior tournaments.
Kevin Anderson defeated Jenson Brooksby in the final, 7–6(10–8), 6–4, to win the singles tennis title at the 2021 Hall of Fame Open. It was played on outdoor grass courts and was part of the 250 series of the 2021 ATP Tour. It took place at the International Tennis Hall of Fame in Newport, Rhode Island, United States from 12 to 18 July 2021.
Denis Kudla was the defending champion but chose not to defend his title.
Mitchell Krueger was the defending champion and successfully defended his title.
Vasek Pospisil was the defending champion but chose not to defend his title.
Cameron Norrie defeated Reilly Opelka in the final, 7–6(7–1), 7–6(7–4) to win the singles title at the 2022 Delray Beach Open.
Mitchell Krueger was the defending champion but lost in the first round to Keegan Smith.
Patrick Kypson was the defending champion but lost in the quarterfinals to Eliot Spizzirri.