Singles | |
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2019 Guzzini Challenger | |
Champion | Egor Gerasimov |
Runner-up | Roberto Marcora |
Final score | 6–2, 7–5 |
Daniel Brands was the defending champion but chose not to defend his title. [1]
Egor Gerasimov won the title after defeating Roberto Marcora 6–2, 7–5 in the final.
All seeds receive a bye into the second round.
Quarterfinals | Semifinals | Final | ||||||||||||||||||
Roberto Marcora | 7 | 65 | 78 | |||||||||||||||||
Jurij Rodionov | 5 | 77 | 66 | |||||||||||||||||
Roberto Marcora | 4 | 7 | 79 | |||||||||||||||||
15 | Mats Moraing | 6 | 5 | 67 | ||||||||||||||||
15 | Mats Moraing | 6 | 6 | |||||||||||||||||
9 | Ramkumar Ramanathan | 4 | 1 | |||||||||||||||||
Roberto Marcora | 2 | 5 | ||||||||||||||||||
10 | Egor Gerasimov | 6 | 7 | |||||||||||||||||
6 | Lukáš Lacko | 7 | 6 | |||||||||||||||||
13 | Viktor Galović | 5 | 3 | |||||||||||||||||
6 | Lukáš Lacko | 3 | 6 | 3 | ||||||||||||||||
10 | Egor Gerasimov | 6 | 1 | 6 | ||||||||||||||||
10 | Egor Gerasimov | 6 | 6 | |||||||||||||||||
Kenny de Schepper | 4 | 3 |
First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
1/WC | M Bachinger | 6 | 6 | ||||||||||||||||||||||||
WC | G Fonio | 1 | 2 | Zh Zhang | 1 | 4 | |||||||||||||||||||||
Zh Zhang | 6 | 6 | 1/WC | M Bachinger | 77 | 3 | 4 | ||||||||||||||||||||
R Quiroz | 1 | 6 | 5 | R Marcora | 65 | 6 | 6 | ||||||||||||||||||||
R Marcora | 6 | 4 | 7 | R Marcora | 6 | 6 | |||||||||||||||||||||
14 | M Bašić | 3 | 4 | ||||||||||||||||||||||||
R Marcora | 7 | 65 | 78 | ||||||||||||||||||||||||
J Rodionov | 5 | 77 | 66 | ||||||||||||||||||||||||
11 | S Napolitano | 4 | 3 | ||||||||||||||||||||||||
ITF | E Tiurnev | 3 | 3 | J Rodionov | 6 | 6 | |||||||||||||||||||||
J Rodionov | 6 | 6 | J Rodionov | 3 | 77 | 6 | |||||||||||||||||||||
G Oliveira | 3 | 4 | ITF | R Brancaccio | 6 | 64 | 1 | ||||||||||||||||||||
ITF | R Brancaccio | 6 | 6 | ITF | R Brancaccio | 4 | 6 | 6 | |||||||||||||||||||
7 | A Menéndez Maceiras | 6 | 3 | 3 |
First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
3 | L Giustino | 64 | 2 | ||||||||||||||||||||||||
A Bega | 2 | 7 | 6 | A Bega | 77 | 6 | |||||||||||||||||||||
WC | Enrico Dalla Valle | 6 | 5 | 2 | A Bega | 3 | 2 | ||||||||||||||||||||
Q | Samuele Ramazzotti | 7 | 77 | 15 | M Moraing | 6 | 6 | ||||||||||||||||||||
V Durasovic | 5 | 63 | Q | S Ramazzotti | 4 | 4 | |||||||||||||||||||||
15 | M Moraing | 6 | 6 | ||||||||||||||||||||||||
15 | M Moraing | 6 | 6 | ||||||||||||||||||||||||
9 | R Ramanathan | 4 | 1 | ||||||||||||||||||||||||
9 | R Ramanathan | 6 | 6 | ||||||||||||||||||||||||
ITF | A Rinderknech | 4 | 3 | Q | N Čačić | 3 | 3 | ||||||||||||||||||||
Q | N Čačić | 6 | 6 | 9 | R Ramanathan | 6 | 6 | ||||||||||||||||||||
M Viola | 6 | 77 | M Viola | 4 | 1 | ||||||||||||||||||||||
WC | Emiliano Maggioli | 3 | 64 | M Viola | 6 | 5 | 6 | ||||||||||||||||||||
5 | I Ivashka | 4 | 7 | 4 |
First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
6 | L Lacko | 6 | 6 | ||||||||||||||||||||||||
L Vanni | 64 | 4 | A Avidzba | 2 | 4 | ||||||||||||||||||||||
A Avidzba | 77 | 6 | 6 | L Lacko | 78 | 4 | 6 | ||||||||||||||||||||
ITF | A Karatsev | 2 | 5 | 12 | E Gómez | 66 | 6 | 3 | |||||||||||||||||||
T Seyboth Wild | 6 | 7 | T Seyboth Wild | 4 | 4r | ||||||||||||||||||||||
12 | E Gómez | 6 | 3 | ||||||||||||||||||||||||
6 | L Lacko | 7 | 6 | ||||||||||||||||||||||||
13 | V Galović | 5 | 3 | ||||||||||||||||||||||||
13 | V Galović | 77 | 6 | ||||||||||||||||||||||||
P Kotov | 6 | 1 | 6 | P Kotov | 64 | 4 | |||||||||||||||||||||
JP Varillas | 4 | 6 | 4 | 13 | V Galović | 5 | 6 | 6 | |||||||||||||||||||
I Marchenko | 2 | 77 | 6 | 4 | S Stakhovsky | 7 | 3 | 3 | |||||||||||||||||||
K Uchida | 6 | 65 | 4 | I Marchenko | 64 | 6 | 5 | ||||||||||||||||||||
4 | S Stakhovsky | 77 | 3 | 7 |
First round | Second round | Third round | Quarterfinals | ||||||||||||||||||||||||
8 | F Baldi | 3 | 78 | 2 | |||||||||||||||||||||||
A Vavassori | 6 | 7 | A Vavassori | 6 | 66 | 6 | |||||||||||||||||||||
Alt | M Bortolotti | 4 | 5 | A Vavassori | 1 | 6 | 3 | ||||||||||||||||||||
G Sakharov | 3 | 65 | 10 | E Gerasimov | 6 | 3 | 6 | ||||||||||||||||||||
M-A Hüsler | 6 | 77 | M-A Hüsler | 5 | 65 | ||||||||||||||||||||||
10 | E Gerasimov | 7 | 77 | ||||||||||||||||||||||||
10 | E Gerasimov | 6 | 6 | ||||||||||||||||||||||||
K de Schepper | 4 | 3 | |||||||||||||||||||||||||
16 | E López Pérez | 2 | 4 | ||||||||||||||||||||||||
Yo Watanuki | 6 | 6 | Yo Watanuki | 6 | 6 | ||||||||||||||||||||||
WC | L Musetti | 0 | 2 | Yo Watanuki | 0 | 2 | |||||||||||||||||||||
A Šetkić | 5 | 3 | K de Schepper | 6 | 6 | ||||||||||||||||||||||
K de Schepper | 7 | 6 | K de Schepper | 6 | 6 | ||||||||||||||||||||||
2 | E Donskoy | 3 | 4 |
Marin Čilić was the defending champion but chose not to compete.
Martin Kližan won his first ATP World Tour title by defeating Fabio Fognini in the final, 6–2, 6–3.
Radu Albot was the defending champion but decided to participate at the 2014 Košice Open instead.
Illya Marchenko was the defending champion but chose not to defend his title.
Evgeny Donskoy was the defending champion but lost in the quarterfinals to Egor Gerasimov.
Damir Džumhur was the defending champion, but lost to Egor Gerasimov in the first round.
Quentin Halys was the defending champion but lost in the second round to Dan Evans.
Mirza Bašić was the defending champion but lost in the first round to Martin Kližan.
Karen Khachanov was the defending champion, but withdrew before the tournament began.
Marco Cecchinato was the defending champion, but withdrew due to illness.
João Sousa was the defending champion, but lost in the second round to David Goffin.
Yannick Hanfmann was the defending champion but chose not to defend his title.
Luca Vanni was the defending champion but chose not to defend his title.
Sebastian Ofner was the defending champion but lost in the third round to Aleksandar Vukic.
Fabio Fognini was the defending champion, but lost in the quarterfinals to Taylor Fritz.
Thanasi Kokkinakis was the defending champion but lost in the second round to Egor Gerasimov.
Karen Khachanov was the defending champion, but lost in the quarterfinals to Andreas Seppi.
Alexander Bublik was the defending champion but chose not to defend his title.
Jannik Sinner was the defending champion and successfully defended his title, defeating Gaël Monfils in the final, 6–3, 6–4.
Tommy Paul defeated the defending champion, Denis Shapovalov, in the final, 6–4, 2–6, 6–4, to win the singles title at the 2021 Stockholm Open. This was Paul's first ATP Tour title.
Félix Auger-Aliassime defeated Stefanos Tsitsipas in the final, 6–4, 6–2. It was his maiden ATP Tour title, following eight runner-up finishes in prior finals.