Yehonatan Kaufman defeated Dor Belfer 7-6 6-4 in the Israel F4 round of 32 on hard. The upset overturned the form book — Dor Belfer came in leading the head-to-head 2–0. Yehonatan Kaufman claimed a first win over Dor Belfer in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-10-21 | Israel F15 | Q16 | hard | Dor Belfer | 6-2 6-3 |
| 2013-02-25 | Israel F4 | Q64 | hard | Dor Belfer | 6-1 6-3 |