Suwandi Suwandi defeated Mark Nielsen 6-3 1-6 6-3 in the Indonesia Masters 2 round of 16 on hard. The upset overturned the form book — Mark Nielsen came in leading the head-to-head 3–0, but Suwandi Suwandi had been the form player, winning 4 of their last 4 on hard. Suwandi Suwandi claimed a first win over Mark Nielsen in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-09-09 | Japan F7 | R16 | hard | Mark Nielsen | 6-3 6-2 |
| 2002-02-08 | Davis Cup G1 QF: NZL vs INA | RR | carpet | Mark Nielsen | 6-1 6-4 3-6 6-3 |
| 1997-04-04 | Davis Cup G1 SF: INA vs NZL | RR | clay | Mark Nielsen | 7-5 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.