- Kansas over Oklahoma State (link);
- Oklahoma over Iowa State (all three wins via run-rule; link); and
- Baylor over Texas Tech (link).
The reason for the late start to Big 12 conference play is that relatively few series are needed, given how few schools field teams. Despite its name, the conference has only 10 institutions to begin with. Further, three of them -- Texas Christian (TCU), Kansas State, and West Virginia -- don't field softball teams, yielding only seven squads.
*Baylor and Texas played once before this weekend, a game won by the Longhorns.