| Details | |
|---|---|
| Duration | 9 January 1989 – 10 December 1989 |
| Edition | 12th |
| Tournaments | 95 |
| Achievements (singles) | |
← 1988 1990 → | |
The ATP Challenger Series is the second-tier tour for men's professional tennis organised by the Association of Tennis Professionals (ATP), below the 1989 Grand Prix. The 1989 ATP Challenger Series calendar comprises 94 tournaments, with prize money ranging from $25,000 up to $75,000.[1]