Cincinnati Reds at Pittsburgh Pirates

For the second of two consecutive nights, the Pirates honored the 30th anniversary of their 1979 World Championship teams with games against the Cincinnati Reds. On Friday they wore the gold-over-black combo, and on Saturday they went with the pinstripe combo. The Reds also wore "polyester-pullovers with sansabelt pants" from that era. Read about in the UniWatch Blog here.

Cincinnati Reds at Pittsburgh Pirates

For the first of two consecutive nights, the Pirates honored the 30th anniversary of their 1979 World Championship teams with games against the Cincinnati Reds. On Friday they wore the gold-over-black combo, and on Saturday they went with the pinstripe combo. The Reds also wore "polyester-pullovers with sansabelt pants" from that era. Read about in the UniWatch Blog here.

Baltimore Orioles at Toronto Blue Jays

The Blue Jays honored their 1992-93 back-to-back World Championship team for this game against the Baltimore Orioles, who didn't participate, wearing their black alternate jerseys.

Atlanta Braves at Milwaukee Brewers

In the comments, werthj tells us of this game, where the Brewers wore the uniforms of the Milwaukee Bears and the Braves were the Atlanta Black Crackers, two negro league teams.

Article about this from the Borchert Field website can be viewed here.

Oakland Athletics at Tampa Bay Rays

The Rays finally do a throwback to their own uniforms, the inaugural 1998 season. Or maybe it was the 1999 season - they apparently didn't get the caps right. The A's wore an early-to-mid 1980's dark green throwback.

Cleveland Indians at Detroit Tigers

Chicago White Sox at Cinicinnati Reds

Detroit Tigers at Pittsburgh Pirates

As mentioned by BurghFan in the comments, the Tigers and the Pirates commemorated the 100th anniversary of their meeting in the 1909 World Series.

St. Louis Cardinals at Cleveland Indians