Hernan Gumy defeated Jan Siemerink 6-4 6-7 6-3 in the Hamburg round of 64 on clay. The upset overturned the form book — Jan Siemerink came in defending last year's round of 32.
Gumy H. came through in three sets.
Hernan Gumy beat Jan Siemerink 6-4 6-7(5) 6-3. Umpiry, "Hernan Gumy vs Jan Siemerink — Hamburg Round of 64", https://umpiry.com/match/1996-05-06/gumy-vs-siemerink-hamburg-r64?utm_source=cite (as of 6 May 1996).