2018 ATP Challenger Tour
Total Nation S D
35 United States ( USA ) 17 18
34 Australia ( AUS ) 17 17
28 Spain ( ESP ) 13 15
21 Italy ( ITA ) 14 7
19 Germany ( GER ) 6 13
18 Argentina ( ARG ) 11 7
17 France ( FRA ) 13 4
15 India ( IND ) 3 12
14 Great Britain ( GBR ) 2 12
13 Slovakia ( SVK ) 5 8
11 Netherlands ( NED ) 3 8
10 Belgium ( BEL ) 2 8
9 Canada ( CAN ) 5 4
9 China ( CHN ) 1 8
9 Ukraine ( UKR ) 1 8
8 Japan ( JPN ) 6 2
8 El Salvador ( ESA ) 2 6
8 Chinese Taipei ( TPE ) 1 7
7 Mexico ( MEX ) 0 7
6 Austria ( AUT ) 2 4
Statistical information -- Titles won by nation
The Association of Tennis Professionals (ATP) Challenger Tour, in 2018, was the secondary professional tennis circuit organized by the ATP. The 2018 ATP Challenger Tour calendar comprised 159 tournaments, with prize money ranging from $50,000 up to $150,000. It was the 41st edition of challenger tournaments cycle, and 10th under the name of Challenger Tour.