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Sebastian Fanselow vs. Davy Sum - head to head matches
| 26.08.13 | 2nd round | Sebastian Fanselow | Davy Sum | 6-1, 6-3 | match details |  Germany F16 | Clay |
Sebastian Fanselow form & Davy Sum form
Sebastian Fanselow - last matches
 M25 Mataro - Clay | ||||
| 20.05.25 1st round | vs. Oleksii Krutykh | 3-6, 2-6 |  | match details |
 Oeiras 5 - Clay | ||||
| 11.05.25 q 1 | vs. Joao Domingues | 4-6, 0-6 | | match details |
| M15 Sanxenxo - Hard | ||||
| 23.04.25 1st round | vs. Antoine Berger | 2-6, 3-6 | | match details |
| M25 Quinta - Hard | ||||
| 05.03.25 1st round | vs. Mario Gonzalez Fernandez | 6-2, 4-6, 0-2, - Sebastian Fanselow - retired | | match details |
| M25 Vila - Hard | ||||
| 12.02.25 1st round | vs. Cezar Cretu | 4-6, 6-4, 3-6 | | match details |
| M15 Cadolzburg - Carpet | ||||
| 16.01.25 2nd round | vs. Christian Djonov | 6-70, 3-6 | | match details |
| 15.01.25 1st round | vs. Maik Steiner | 7-5, 7-66 |  | match details |
| Oeiras 1 - I. hard | ||||
| 07.01.25 1st round | vs. Alexander Ritschard | 4-6, 4-6 | | match details |
| 06.01.25 qual. | vs. Mukund Sasikumar | 6-2, 6-3 | | match details |
| 05.01.25 q 1 | vs. Hazem Naw | 6-3, 6-3 | | match details |
 M15 Selva - I. hard | ||||
| 29.10.24 1st round | vs. Pietro Orlando Fellin | 3-6, 2-6 | | match details |
| M25 Santa - Clay | ||||
| 17.10.24 1/4 | vs. Pol Martin Tiffon | 2-6, 2-6 | | match details |
| 16.10.24 2nd round | vs. Joaquin Aguilar Cardozo | 7-5, 2-6, 7-68 | | match details |
| 15.10.24 1st round | vs. Dimitris Sakellaridis | 6-4, 6-3 | | match details |
| M25 Santa - Clay | ||||
| 11.10.24 1/4 | vs. Gianluca Mager | 2-6, 7-5, 3-6 | | match details |
| 10.10.24 2nd round | vs. Petr Nesterov | 4-6, 6-1, 7-63 | | match details |
| 07.10.24 1st round | vs. Iannis Miletich | 6-3, 6-4 | | match details |
| Lisbon Challenger - Clay | ||||
| 22.09.24 q 1 | vs. Raul Brancaccio | 3-6, 1-6 | | match details |
 Szczecin Challenger - Clay | ||||
| 12.09.24 2nd round | vs. Vit Kopriva | 3-6, 0-6 | | match details |
| 11.09.24 1st round | vs. Andrew Paulson | 6-3, Andrew Paulson - retired | | match details |
| 10.09.24 qual. | vs. Alexey Vatutin | 4-6, 6-3, 2-6 | | match details |
| 08.09.24 q 1 | vs. Andrej Martin | 4-6, 6-4, 6-1 | | match details |
| Seville Challenger - Clay | ||||
| 03.09.24 1st round | vs. Federico Coria | 7-67, 1-6, 0-6 | | match details |
| Porto 2 - Clay | ||||
| 27.08.24 1st round | vs. Lukas Neumayer | 6-4, 2-6, 1-6 | | match details |
| Bonn Challenger - Clay | ||||
| 06.08.24 1st round | vs. Oriol Roca Batalla | 0-6, 1-6 | | match details |
| Porto Challenger - Hard | ||||
| 30.07.24 1st round | vs. Gastao Elias | 3-6, 6-71 | | match details |
| Braunschweig Challenger - Clay | ||||
| 09.07.24 1st round | vs. Juan Pablo Varillas | 6-72, 3-6 | | match details |
| 08.07.24 qual. | vs. Carlos Sanchez Jover | 6-4, 6-71, 6-2 | | match details |
| 07.07.24 q 1 | vs. Justin Engel | 3-6, 6-4, 6-4 | | match details |
 Troyes Challenger - Clay | ||||
| 04.07.24 2nd round | vs. Gabriel Debru | 2-6, 3-6 | | match details |
Davy Sum - last matches
| France F18 - I. hard | ||||
| 12.09.16 qual. | vs. Mathieu Roy | 0-6, 2-6 | | match details |
| 12.09.16 q 1 | vs. Loic Ratsaratany | 1-6, 6-4, 6-2 | | match details |
| France F20 - Carpet | ||||
| 28.09.15 q 1 | vs. Felix Muller | 6-0, 6-1 | | match details |
| 28.09.15 2nd round | vs. Goncalo Oliveira | 3-6, 4-6 | | match details |
| 28.09.15 qual. | vs. Bastien Kolly | 6-0, 7-5 | | match details |
| 28.09.15 1st round | vs. Lucas Bouquet | 6-4, 7-5 | | match details |
| France F18 - I. hard | ||||
| 14.09.15 1st round | vs. Yannick Thivant | 7-63, 4-6, 0-6 | | match details |
| 14.09.15 q 2 | vs. Hugo Pontico | 6-2, 6-1 | | match details |
| 14.09.15 qual. | vs. Nathaniel Seyler | 6-3, 4-6, 7-68 | | match details |
| 14.09.15 q 1 | vs. Loic Payraudeau | 6-4, 6-0 | | match details |
| France F8 - Clay | ||||
| 21.04.14 1st round | vs. Loic Ducourau | 4-6, 6-2, 7-66 | | match details |
| 21.04.14 2nd round | vs. Gleb Sakharov | 6-4, 4-6, 4-6 | | match details |
| France F2 - I. hard | ||||
| 20.01.14 q 1 | vs. Florian Simbozel | 2-6, 0-6 | | match details |
| France F1 - Clay | ||||
| 13.01.14 2nd round | vs. Yannick Mertens | 2-6, 3-6 | | match details |
| 13.01.14 1st round | vs. Alexandre Favrot | 6-3, 1-6, 6-1 | | match details |
| St. Remy - Hard | ||||
| 01.09.13 q 2 | vs. Filip Veger | 6-4, 4-6, 3-6 | | match details |
| Germany F16 - Clay | ||||
| 26.08.13 1st round | vs. Kevin Kaczynski | 1-6, 6-3, 6-3 | | match details |
| 26.08.13 2nd round | vs. Sebastian Fanselow | 1-6, 3-6 | | match details |
 Finland F1 - Clay | ||||
| 05.08.13 1st round | vs. Henrik Sillanpaa | 4-6, 2-6 | | match details |
 Denmark F3 - Clay | ||||
| 29.07.13 1st round | vs. Morgan Johansson | 3-6, 6-3, 4-6 | | match details |
| Germany F10 - Clay | ||||
| 15.07.13 1st round | vs. Simon Ede | 1-6, 6-1, 3-6 | | match details |
 Belgium F3 - Clay | ||||
| 01.07.13 1st round | vs. Kevin Griekspoor | 0-6, 2-4, - Davy Sum - retired | | match details |
| Belgium F1 - Clay | ||||
| 17.06.13 1st round | vs. Rodrigo Perez | 6-4, 6-74, 1-3, - Davy Sum - retired | | match details |
 Turkey F20 - Hard | ||||
| 20.05.13 1st round | vs. Baris Firat | 6-1, 6-3 | | match details |
| 20.05.13 2nd round | vs. Oleg Dovgan | 6-1, 6-1 | | match details |
| 20.05.13 1/2 | vs. Mate Delic | 1-6, 2-6 | | match details |
| 20.05.13 1/4 | vs. Claudio Fortuna | 7-5, 6-2 | | match details |
| Turkey F19 - Hard | ||||
| 13.05.13 1/4 | vs. Maximilian Neuchrist | 2-6, 1-6 | | match details |
| 13.05.13 1st round | vs. Tuna Altuna | 2-6, 6-1, 6-2 | | match details |
| 13.05.13 2nd round | vs. Matteo Marfia | 6-0, 6-1 | | match details |