Kobi Ziv defeated Nir Welgreen 6-3 6-3 in the Israel 2 Masters 4 round of 16 on hard. The upset overturned the form book — Nir Welgreen came in leading the head-to-head 3–2. Kobi Ziv narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-01-24 | India F3 | R32 | hard | Nir Welgreen | 6-3 0-6 6-1 |
| 1998-06-13 | Turkey 1 Masters 1 | SF | hard | Nir Welgreen | 6-2 6-4 |
| 1998-06-13 | Turkey 1 Masters 4 | F | hard | Kobi Ziv | 7-6 6-4 |
| 1998-03-27 | USA 1 Masters 2 | R32 | hard | Nir Welgreen | 6-1 6-3 |
| 1996-07-08 | China Masters 2 | SF | hard | Kobi Ziv | 6-4 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.