When was The Pro Yakyuu: Pennant race released?

The Pro Yakyuu: Pennant race was released on August 17, 1987.

What platforms is The Pro Yakyuu: Pennant race available on?

The Pro Yakyuu: Pennant race is available on Sega Master System/Mark III.

Who developed The Pro Yakyuu: Pennant race?

The Pro Yakyuu: Pennant race was developed by Whiteboard.

The Pro Yakyuu: Pennant race

About

The Pro Yakyuu: Pennant Race (ザ・プロ野球ペナントレース) is a Sega Master System baseball game developed by Whiteboard and published by Sega. Exclusively released in Japan in 1987, the game is an evolution of the developer's earlier title Great Baseball, and is now played from a bird's-eye perspective.