| Jermaine O'Neal Rankings 1998-1999 | Stats Glossary  |
| Games with 4 or more Efficiency Recap | Portland Trail Blazers Record : 13 - 6 | Jermaine O'Neal |
| No | Date | Game | Res | Score | Efficiency Recap |
| 1 | May 31 | at San_Antonio | L | 85-86 | 6 |
| 2 | May 23 | vs Utah | W | 81-75 | 5 |
| 3 | May 12 | at Phoenix | W | 103-93 | 5 |
| 4 | May 5 | at L.A.Lakers | L | 91-119 | 17 |
| 5 | May 2 | at Denver | W | 110-102 | 9 |
| 6 | May 1 | at San_Antonio | L | 90-98 | 4 |
| 7 | Apr 26 | vs Denver | W | 93-77 | 12 |
| 8 | Apr 25 | vs Minnesota | W | 100-84 | 5 |
| 9 | Apr 2 | vs Seattle | W | 107-95 | 8 |
| 10 | Mar 30 | at Golden_State | L | 90-93 | 5 |
| 11 | Mar 28 | at Phoenix | W | 88-86 | 4 |
| 12 | Mar 25 | vs Phoenix | W | 97-84 | 4 |
| 13 | Mar 18 | at Sacramento | W | 88-78 | 8 |
| 14 | Mar 16 | at Houston | L | 93-101 | 10 |
| 15 | Mar 15 | at Dallas | W | 106-91 | 6 |
| 16 | Mar 13 | at L.A.Clippers | W | 106-96 | 4 |
| 17 | Mar 7 | vs Houston | W | 111-71 | 15 |
| 18 | Feb 17 | vs Denver | W | 100-85 | 5 |
| 19 | Feb 7 | at Seattle | L | 88-91 | 4 |
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