Lt
Commander Mark Leach
| Patrol and Zone | Boat and Hull | Merchants Sunk | Warships Sunk | JANAC tonnage | Awards, Comments, Notes |
| 1 Indochina | USS Spearfish SS-190 |
None | None | None | Combat Patrol Award (CPA) |
| 2 S. China Sea | USS Spearfish SS-190 |
2 marus | None | 9,945 | Navy Commendation, CPA |
| 3 Sulu Sea | USS Spearfish SS-190 |
5 marus | None | 12,440 | CPA |
| 4 Caroline Is. special mission |
USS Grampus SS-207 |
1 maru (LF) | 1 BB Fuso 1 CL Kuma |
22,851 | 1 photo recon, Silver Star, Good Conduct Medal, CPA |
| 5 Phillipines | USS Grampus SS-207 |
Promoted to
Lt. Commander RESIGNED from Pacific Thunder |