The third, and final, day of pool play at the Pac-12 Baseball Tournament wrapped up on Thursday with one grouping — Pool B — already decided. And that meant the opening game between the losers of that pool, No. 2 seed Oregon State and No. 5 seed Arizona State, took on some significant meaning. With the three pool winners advancing to the semifinals, the fourth team is picked by selecting the highest seeded team with the best record from the remaining six teams. Holding the No. 2 seed, a win over the Sun Devils would put Oregon State in prime position to advance to the semifinals out of Pool B,…