# 2024 Heilbronner Neckarcup – Singles

Matteo Arnaldi was the defending champion but chose not to defend his title.
Sumit Nagal won the title after defeating Alexander Ritschard 6–1, 6–7$^{(5–7)}$, 6–3 in the final.

## Seeds

* Daniel Altmaier (second round)
* Yannick Hanfmann (first round)
* Sumit Nagal (champion)
* Maximilian Marterer (second round)
* Luca Van Assche (semifinals)
* Daniel Elahi Galán (first round)
* Albert Ramos Viñolas (first round)
* Jurij Rodionov (second 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 | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 5 | Luca Van Assche | 2 | 6$^5$ | | | | | | |
| 3 | Sumit Nagal | 6 | 7$^7$ | | | | | | |
| 3 | Sumit Nagal | 6 | 7$^7$ | | 3 | Sumit Nagal | 6 | 6$^5$ | 6 |
| | | | | | | Alexander Ritschard | 1 | 7$^7$ | 3 |
| | Alexander Ritschard | 6 | 6$^7$ | 6 | | Alexander Ritschard | 1 | 7$^7$ | 3 |
| | Jan Choinski | 3 | 7$^9$ | 4 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | D Altmaier | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| WC | M Topo | 3 | 6$^4$ | | 1/WC | D Altmaier | 2 | 5 | | | | | | | | | | |
| | M Kaśnikowski | 4 | 6 | 6 | | M Kaśnikowski | 6 | 7 | | | | | | | | | | |
| Alt | S Fanselow | 6 | 4 | 1 | | | | | | | M Kaśnikowski | 3 | 6 | 0 | | | | |
| | G Blancaneaux | 6 | 7$^9$ | | | | | | | 5 | L Van Assche | 6 | 3 | 6 | | | | |
| Q | Lasse Pörtner | 1 | 6$^7$ | | | G Blancaneaux | 6 | 3 | 2 | | | | | | | | | |
| | M Janvier | 7$^7$ | 3 | 6$^2$ | 5 | L Van Assche | 3 | 6 | 6 | | | | | | | | | |
| 5 | L Van Assche | 6$^2$ | 6 | 7$^7$ | | | | | | | | | | | 5 | L Van Assche | 2 | 6$^5$ |
| 3 | S Nagal | 6 | 1 | 6 | | | | | | | | | | | 3 | S Nagal | 6 | 7$^7$ |
| Q | N Basilashvili | 2 | 6 | 3 | 3 | S Nagal | 6 | 6 | | | | | | | | | | |
| | J Barranco Cosano | 6 | 6 | | | J Barranco Cosano | 4 | 1 | | | | | | | | | | |
| Alt | A Holmgren | 4 | 2 | | | | | | | 3 | S Nagal | 6 | 7$^7$ | | | | | |
| | N Sánchez Izquierdo | 7$^8$ | 6 | | | | | | | | I Gakhov | 1 | 6$^4$ | | | | | |
| Q | D Dutra da Silva | 6$^6$ | 2 | | | N Sánchez Izquierdo | 3 | 1 | | | | | | | | | | |
| | I Gakhov | 6 | 6 | | | I Gakhov | 6 | 6 | | | | | | | | | | |
| 6 | DE Galán | 4 | 3 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | A Ramos Viñolas | 4 | 6$^2$ | | | | | | | | | | | | | |
| | A Ritschard | 6 | 7$^7$ | | | A Ritschard | 6 | 6 | | | | | | | | |
| | T Barrios Vera | 6 | 6 | | | T Barrios Vera | 3 | 3 | | | | | | | | |
| | B Hassan | 4 | 0 | | | | | | | A Ritschard | 6 | 6 | | | | |
| | H Squire | 6 | 6 | | | | | | | H Squire | 2 | 3 | | | | |
| | AD Vallejo | 3 | 2 | | | H Squire | 6 | 6 | | | | | | | | |
| Q | D Masur | 3 | 0 | | 4 | M Marterer | 0 | 2 | | | | | | | | |
| 4 | M Marterer | 6 | 6 | | | | | | | | | | A Ritschard | 6 | 6$^7$ | 6 |
| 8 | J Rodionov | 6 | 6$^3$ | 6 | | | | | | | | | J Choinski | 3 | 7$^9$ | 4 |
| | M Martineau | 3 | 7$^7$ | 2 | 8 | J Rodionov | 6 | 6$^4$ | 6$^1$ | | | | | | | |
| Q | F Gill | 4 | 5 | | | A Moro Cañas | 3 | 7$^7$ | 7$^7$ | | | | | | | |
| | A Moro Cañas | 6 | 7 | | | | | | | A Moro Cañas | 3 | 3 | | | | |
| Q | Peter Heller | 5 | 6 | 7 | | | | | | J Choinski | 6 | 6 | | | | |
| | R Molleker | 7 | 4 | 5 | Q | P Heller | 3 | 3 | | | | | | | | |
| | J Choinski | 6 | 6 | | | J Choinski | 6 | 6 | | | | | | | | |
| 2/WC | Y Hanfmann | 4 | 2 | | | | | | | | | | | | | |