S. Zund and E. Sigurdsson are level 1-1 in their head-to-head since 2018 over 2 matches.
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By surface
| Surface | S. Zund | E. Sigurdsson |
| Other | 1 | 1 |
Current ELO by surface
| Surface | S. Zund | E. Sigurdsson |
| Hard |
1167 (2-4) |
— |
| Clay |
1270 (39-44) |
1180 (0-1) |
ELO is computed per surface from results since 2018; the win-loss pair is that surface's record.
Match history
| Date | Winner | Score | Event |
| June 11, 2025 | S. Zund | 2 - 0 | ATP Davis Cup - Group IV |
| June 12, 2024 | E. Sigurdsson | 2 - 1 | ATP Davis Cup - Group IV |
Recent form
S. Zund — 0-5 in the last 5
| Date | | Opponent | Score | Event |
| Oct. 19, 2025 |
L |
A. Zolotareva |
0 - 2 |
Florianopolis · Final · clay |
| Oct. 7, 2025 |
L |
L. Garcia Vidal |
0 - 2 |
W15 Sao João da Boa Vista · 1/16-finals · clay |
| Sept. 30, 2025 |
L |
M. Tona |
2 - 0 |
W35 Sao Paulo 3 · 1/16-finals · clay |
| Sept. 23, 2025 |
L |
A. Vergara Rivera |
1 - 2 |
W15 Lujan 2 · 1/16-finals · clay |
| Sept. 20, 2025 |
L |
C. Markus |
1 - 2 |
W15 Lujan · Quarter-finals · clay |
| Date | | Opponent | Score | Event |
| June 14, 2025 |
L |
M. De Rossi |
0 - 1 |
ATP Davis Cup - Group IV |
| June 13, 2025 |
W |
J. Sura |
1 - 2 |
ATP Davis Cup - Group IV |
| June 12, 2025 |
L |
V. Tashi |
2 - 0 |
ATP Davis Cup - Group IV |
| June 11, 2025 |
L |
S. Zund |
2 - 0 |
ATP Davis Cup - Group IV |
| June 14, 2024 |
L |
M. De Rossi |
0 - 0 |
ATP Davis Cup - Group IV |
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