After Woodward struck out, Boos doubled down the third base line to plate Rapp for a 1-0 Eagles advantage.

Source: https://timesbulletin.com/Content/School-Sports/Sports/Article/Raiders-stun-top-seeded-Eastwood/197/6/237489

His problem: Witt drilled it down the third base line, where Ke’Bryan Hayes made a spectacular backhand stop and turned to throw to second base for a forceout in the sixth inning.

Source: https://triblive.com/sports/pirates-3b-kebryan-hayes-having-red-hot-month-at-plate-making-a-case-for-gold-glove/

Lewis, whose recovering hamstring strain has limited him to designated-hitter duty, hit a slow roller up the third base line in his first at-bat that prompted a sprint out of the box.

Source: https://drgnews.com/2023/10/04/twins-win-first-playoff-series-in-21-years-complete-sweep-of-blue-jays/

They usually sit in the club level along the first base line.

Source: https://triblive.com/local/sewickley/pirates-pitcher-david-bednar-visits-bell-acres-family-for-season-ticket-holders-appreciation/