| Singles | |
|---|---|
| 2001 Salem Open | |
| 2000 Champion |  Nicolas Kiefer |
| Champion |  Marcelo Ríos |
| Runner-up | Rainer Schüttler |
| Score | 7–6 (7–3), 6–2 |
Nicolas Kiefer was the defending champion but did not compete that year.
Marcelo Ríos won in the final 7–6 (7–3), 6–2 against Rainer Schüttler.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Juan Carlos Ferrero (quarterfinals)
Marat Safin (second round)
Sébastien Grosjean (quarterfinals)
Andy Roddick (first round)
Mark Philippoussis (second round)
Jonas Björkman (quarterfinals) Michael Chang (second round) Marcelo Ríos (champion)| First round | Second round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||||||||
| 1 | J C Ferrero | 6 | 4 | 6 | ||||||||||||||||||||||||||||||
| Q |  P Srichaphan | 3 | 6 | 3 | 1 | J C Ferrero | 4 | 7 | 77 | |||||||||||||||||||||||||
| Q |  I Heuberger | 65 | 4 | Q | C Mamiit | 6 | 5 | 63 | ||||||||||||||||||||||||||
| Q | C Mamiit | 77 | 6 | 1 | J C Ferrero | 3 | 66 | |||||||||||||||||||||||||||
| M Russell | 62 | 63 | R Schüttler | 6 | 78 | |||||||||||||||||||||||||||||
| R Schüttler | 77 | 77 | R Schüttler | 77 | 4 | 6 | ||||||||||||||||||||||||||||
 H Levy | 3 | 5 | 5 | M Philippoussis | 65 | 6 | 3 | |||||||||||||||||||||||||||
| 5 | M Philippoussis | 6 | 7 | R Schüttler | 6 | 6 | ||||||||||||||||||||||||||||
| 4 | A Roddick | 3 | 6 | 3/r |  A Sá | 4 | 0 | |||||||||||||||||||||||||||
| A Sá | 6 | 4 | 3 | A Sá | 7 | 6 | ||||||||||||||||||||||||||||
| F Clavet | 63 | 64 | M Kratochvil | 5 | 4 | |||||||||||||||||||||||||||||
| M Kratochvil | 77 | 77 | A Sá | 6 | 6 | |||||||||||||||||||||||||||||
| W Arthurs | 6 | 6 | 6 | J Björkman | 1 | 3 | ||||||||||||||||||||||||||||
| WC | T Woodbridge | 2 | 2 | W Arthurs | 2 | 4 | ||||||||||||||||||||||||||||
 S Sargsian | 2 | 4 | 6 | J Björkman | 6 | 6 | ||||||||||||||||||||||||||||
| 6 | J Björkman | 6 | 6 | Rainer Schüttler | 63 | 2 | ||||||||||||||||||||||||||||
| 8 | M Ríos | 6 | 6 | 8 | Marcelo Ríos | 77 | 6 | |||||||||||||||||||||||||||
| Q |  D Vacek | 2 | 1 | 8 | M Ríos | 7 | 6 | |||||||||||||||||||||||||||
 H-T Lee | 1 | 5 |  K Carlsen | 5 | 3 | |||||||||||||||||||||||||||||
| K Carlsen | 6 | 7 | 8 | M Ríos | 6 | 6 | ||||||||||||||||||||||||||||
| Á Calatrava | 6 | 65 | 3 | 3 | S Grosjean | 2 | 3 | |||||||||||||||||||||||||||
| N Massú | 2 | 77 | 6 | N Massú | 62 | 6 | 4 | |||||||||||||||||||||||||||
| L Burgsmüller | 64 | 4 | 3 | S Grosjean | 77 | 3 | 6 | |||||||||||||||||||||||||||
| 3 | S Grosjean | 77 | 6 | 8 | M Ríos | 6 | 6 | |||||||||||||||||||||||||||
| 7 | M Chang | 77 | 7 | A Ilie | 4 | 2 | ||||||||||||||||||||||||||||
| J Blake | 63 | 5 | 7 | M Chang | 3 | 1 | r | |||||||||||||||||||||||||||
| A Ilie | 4 | 6 | 77 | A Ilie | 6 | 4 | ||||||||||||||||||||||||||||
| WC |  G Motomura | 6 | 4 | 63 | A Ilie | 6 | 6 | |||||||||||||||||||||||||||
 N Godwin | 6 | 4 | 3 | M Larsson | 3 | 3 | ||||||||||||||||||||||||||||
| M Larsson | 2 | 6 | 6 | M Larsson | 6 | 3 | 6 | |||||||||||||||||||||||||||
| WC |  J Hui | 3 | 2 | 2 | M Safin | 2 | 6 | 4 | ||||||||||||||||||||||||||
| 2 | M Safin | 6 | 6 | |||||||||||||||||||||||||||||||
Jiří Novák was the defending champion but lost in the semifinals to Kenneth Carlsen.
First-seeded Marcelo Ríos defeated Richard Fromberg 4–6, 6–4, 7–6(7–3) to win the 1998 Heineken Open singles competition. Jonas Björkman was the champion but did not defend his title.
Magnus Norman was the defending champion of the singles event at the Heineken Open tennis tournament, held in Auckland, New Zealand, but did not compete that year.
Richard Krajicek defeated Yevgeny Kafelnikov in the final, 6–4, 6–3, 6–3 to win the singles tennis title at the 1998 Eurocard Open.
Greg Rusedski defeated the defending champion Pete Sampras in the final, 6–4, 7–6(7–4), 6–3 to win the singles tennis title at the 1998 Paris Open.
Marcelo Ríos defeated Mariano Zabaleta in the final, 6–7(5–7), 7–5, 5–7, 7–6(7–5), 6–2 to win the singles tennis title at the 1999 Hamburg European Open.
Gustavo Kuerten defeated Marat Safin in the final, 6–4, 5–7, 6–4, 5–7, 7–6(7–3) to win the singles tennis title at the 2000 Hamburg European Open.
Boris Becker was the defending champion but lost in the quarterfinals to Richard Krajicek.
Andre Agassi was the defending champion but did not compete that year.
Karel Nováček was the defending champion, but the seventh seeded Czech lost in the quarterfinals to Gilbert Schaller. Qualifier Marcelo Ríos won in the final 6–4, 7–5, 6–4 against Jan Siemerink and captured his second title of the year.
Marcelo Ríos was the defending champion but lost in the second round to Adrian Voinea.
Andrei Pavel was the defending champion but lost in the quarterfinals to Magnus Gustafsson.
Marcelo Ríos was the defending champion but did not compete that year.
Carlos Moyá was the defending champion and won in the final 6–2, 6–3 against David Ferrer.
Marcelo Ríos was the defending champion but did not compete that year.
Félix Mantilla was the defending champion but did not compete that year.
Thomas Muster was the defending champion and won in the final 6–3, 4–6, 6–4, 6–1 against Marcelo Ríos.
Thomas Muster was the defending champion but lost in the quarterfinals to Andrea Gaudenzi.
Arnaud Boetsch was the defending champion but lost in the first round to Bernd Karbacher.
Marcelo Ríos won in the final 6–4, 2–6, 7–6(7–1), 5–7, 6–3 against Andre Agassi. It was Ríos' 6th title of the year and the 11th of his career.