25‑Nov‑1985 | Australian Open | Grass | R64 | 89 | 1 | (1)Ivan Lendl [USA] d. Lavalle | 6-4 0-6 6-4 6-2 | | | | | | | | | |
18‑Nov‑1985 | Hong Kong | Hard | QF | 138 | 55 | Bud Schultz [USA] d. Lavalle | 6-3 6-3 | | | | | | | | | |
18‑Nov‑1985 | Hong Kong | Hard | R16 | 138 | 15 | Lavalle d. (1)Brad Gilbert [USA] | 7-5 6-4 | | | | | | | | | |
18‑Nov‑1985 | Hong Kong | Hard | R32 | 138 | 45 | Lavalle d. Mark Dickson [USA] | 7-6 4-6 6-0 | | | | | | | | | |
4‑Oct‑1985 | Davis Cup AME F: BRA vs MEX | Clay | RR | | | Lavalle d. Dacio Campos [BRA] | 6-1 6-3 6-2 | | | | | | | | | |
4‑Oct‑1985 | Davis Cup AME F: BRA vs MEX | Clay | RR | | | Lavalle d. Julio Goes [BRA] | 5-7 6-1 6-1 6-1 | | | | | | | | | |
16‑Sep‑1985 | Geneva | Clay | QF | 204 | 88 | Juan Aguilera [ESP] d. (WC)Lavalle | 7-5 6-1 | | | | | | | | | |
16‑Sep‑1985 | Geneva | Clay | R16 | 204 | 28 | (WC)Lavalle d. (7)Heinz Gunthardt [SUI] | 6-4 6-3 | | | | | | | | | |
16‑Sep‑1985 | Geneva | Clay | R32 | 204 | 251 | (WC)Lavalle d. (Q)Juan Antonio Rodriguez [ESP] | 4-6 6-3 6-0 | | | | | | | | | |
9‑Sep‑1985 | Palermo | Clay | R32 | 206 | 74 | (6)Diego Perez [URU] d. Lavalle | 1-6 6-3 7-6 | | | | | | | | | |
27‑Aug‑1985 | US Open | Hard | R128 | 212 | 60 | Ken Flach [USA] d. (Q)Lavalle | 7-5 6-2 2-6 6-1 | | | | | | | | | |
2‑Aug‑1985 | Davis Cup AME SF: CAN vs MEX | Clay | RR | | | Martin Wostenholme [CAN] d. Lavalle | 7-5 3-6 6-8 8-6 6-2 | | | | | | | | | |
2‑Aug‑1985 | Davis Cup AME SF: CAN vs MEX | Clay | RR | | | Lavalle d. Stephane Bonneau [CAN] | 12-10 6-1 6-2 | | | | | | | | | |