The Braves sweep the Mets in a doubleheader at Shea Stadium, but Atlanta uses 11 pitchers to do it. The Mets also use 11 pitchers, a two-team record, as the Braves win, 11 – 7 and 15 – 10. Both wins go to Chi-Chi Olivowho toils just 2 2/3 innings.

On July 26, 1964 — The Braves sweep the Mets in a doubleheader at Shea Stadium, but Atlanta uses 11 pitchers to do it. The Mets also use 11 pitchers, a two-team record, as the Braves win, 11 – 7 and 15 – 10. Both wins go to Chi-Chi Olivowho toils just 2 2/3 innings.

Source:
Baseball Reference July 26