27‑Oct‑1986 | Hong Kong | Hard | R16 | 117 | 40 | (7)Ramesh Krishnan [IND] d. (Q)Kratzmann | 6-4 4-6 6-4 | | | | | | | | | |
27‑Oct‑1986 | Hong Kong | Hard | R32 | 117 | 167 | (Q)Kratzmann d. (Q)Carl Uwe Steeb [GER] | 6-3 6-2 | | | | | | | | | |
13‑Oct‑1986 | Sydney Indoor | Hard | R32 | 115 | 1 | (1)Ivan Lendl [USA] d. Kratzmann | 6-4 6-2 | | | | | | | | | |
26‑Aug‑1986 | US Open | Hard | R128 | 107 | 19 | Johan Kriek [USA] d. Kratzmann | 7-5 6-4 3-6 3-6 6-4 | | | | | | | | | |
18‑Aug‑1986 | Cincinnati | Hard | R64 | 102 | 308 | (Q)Steve Denton [USA] d. Kratzmann | 7-5 7-5 | | | | | | | | | |
4‑Aug‑1986 | Stratton Mountain | Hard | R32 | 99 | 53 | Scott Davis [USA] d. Kratzmann | 6-3 6-4 | | | | | | | | | |
4‑Aug‑1986 | Stratton Mountain | Hard | R64 | 99 | 27 | Kratzmann d. (11)Matt Anger [USA] | 7-6 6-3 | | | | | | | | | |
21‑Jul‑1986 | Boston | Clay | R64 | 101 | 158 | Michael Robertson [USA] d. Kratzmann | 6-7 6-1 6-4 | | | | | | | | | |
7‑Jul‑1986 | Newport | Grass | R32 | 100 | 53 | (3)Bud Schultz [USA] d. Kratzmann | 2-6 7-6 6-4 | | | | | | | | | |
23‑Jun‑1986 | Wimbledon | Grass | R32 | 123 | 2 | (2)Mats Wilander [SWE] d. (Q)Kratzmann | 6-4 6-4 2-6 6-1 | | | | | | | | | |
23‑Jun‑1986 | Wimbledon | Grass | R64 | 123 | 92 | (Q)Kratzmann d. Carlos Kirmayr [BRA] | 7-5 6-2 4-6 6-1 | | | | | | | | | |
23‑Jun‑1986 | Wimbledon | Grass | R128 | 123 | 91 | (Q)Kratzmann d. Nduka Odizor [NGR] | 4-6 6-3 7-6 4-6 8-6 | | | | | | | | | |
26‑May‑1986 | Roland Garros | Clay | R128 | 134 | 47 | Robert Seguso [USA] d. (Q)Kratzmann | 4-6 6-3 7-6 6-3 | | | | | | | | | |
7‑Apr‑1986 | Bari | Clay | R16 | 179 | 79 | Horacio De La Pena [ARG] d. Kratzmann | 5-7 6-3 6-3 | | | | | | | | | |
7‑Apr‑1986 | Bari | Clay | R32 | 179 | 43 | Kratzmann d. (2)Jaime Yzaga [PER] | 7-5 2-6 7-5 | | | | | | | | | |