Ralph García of Juarez (Mexican League) hurls his second no-hitter of the season in beating Durango, 3 – 1. He throttled Nuevo Laredo without a hit on April 16th.

On July 9, 1977 — Ralph García of Juarez (Mexican League) hurls his second no-hitter of the season in beating Durango, 3 – 1. He throttled Nuevo Laredo without a hit on April 16th.

Source:
Baseball Reference July 9