1998 Big 12 Conference Baseball Tournament
The 1998 Big 12 Conference Baseball Tournament was the second played in Big 12 history, and the first to be held at AT&T Bricktown Ballpark in Oklahoma City, OK from May 14 through May 17. Texas Tech won the tournament and earned the Big 12 Conference's automatic bid to the 1998 NCAA Division I Baseball Tournament. The format followed that used by the NCAA Division I Baseball Championship at the time: a six-team, double-elimination tournament.Source:
| Place | Seed | Team | Conference | Conference | Conference | Conference | Conference | Overall | Overall | Overall | Overall |
| Place | Seed | Team | W | L | T | % | GB | W | L | T | % |
| 1 | 1 | | 21 | 9 | 0 | | – | 46 | 20 | 0 | |
| 2 | 2 | | 18 | 10 | 0 | | 2 | 41 | 20 | 1 | |
| 3 | 3 | | 18 | 11 | 0 | | 2.5 | 44 | 20 | 0 | |
| 4 | 4 | | 17 | 11 | 0 | | 3 | 42 | 20 | 0 | |
| 5 | 5 | | 17 | 12 | 0 | | 3.5 | 36 | 18 | 0 | |
| 6 | 6 | | 15 | 12 | 0 | | 4.5 | 40 | 21 | 0 | |
| 7 | – | | 10 | 13 | 0 | | 7.5 | 24 | 20 | 0 | |
| 8 | – | | 11 | 18 | 0 | | 9.5 | 23 | 32 | 1 | |
| 9 | – | | 10 | 18 | 0 | | 10 | 20 | 27 | 0 | |
| 10 | – | | 9 | 19 | 0 | | 11 | 20 | 32 | 0 | |
| 11 | – | | 7 | 20 | 0 | | 12.5 | 22 | 29 | 0 | |
