| Grant Long Rankings 1998-1999 | Stats Glossary  |
| Games with .406 or more Field-goals Percentage | Atlanta Hawks Record : 20 - 11 | Grant Long |
| No | Date | Game | Res | Score | Field-goals Percentage |
| 1 | May 16 | vs Detroit | W | 87-75 | .500 |
| 2 | May 14 | at Detroit | L | 82-103 | .571 |
| 3 | May 12 | at Detroit | L | 63-79 | .571 |
| 4 | May 8 | vs Detroit | W | 90-70 | .625 |
| 5 | May 5 | vs Washington | W | 100-92 | .429 |
| 6 | May 4 | at Miami | L | 79-93 | .500 |
| 7 | May 2 | at Cleveland | W | 76-65 | .600 |
| 8 | Apr 30 | vs Indiana | L | 90-92 | .500 |
| 9 | Apr 23 | at Washington | W | 89-78 | .455 |
| 10 | Apr 22 | vs Boston | W | 106-94 | .571 |
| 11 | Apr 20 | at Toronto | W | 103-81 | .444 |
| 12 | Apr 16 | vs Orlando | W | 91-79 | .500 |
| 13 | Apr 13 | at Milwaukee | L | 84-91 | .444 |
| 14 | Apr 9 | vs New_York | L | 78-86 | .667 |
| 15 | Apr 7 | at Detroit | L | 82-89 | .444 |
| 16 | Apr 4 | vs Charlotte | W | 85-83 | .800 |
| 17 | Apr 2 | vs Vancouver | W | 84-81 | .571 |
| 18 | Mar 30 | vs Detroit | L | 77-93 | .500 |
| 19 | Mar 29 | at Indiana | W | 83-82 | .600 |
| 20 | Mar 26 | vs Chicago | W | 93-81 | .600 |
| 21 | Mar 19 | vs Phoenix | W | 93-85 | .500 |
| 22 | Mar 10 | at Miami | L | 78-88 | .444 |
| 23 | Feb 27 | at L.A.Clippers | W | 103-74 | .667 |
| 24 | Feb 25 | at Houston | W | 93-87 | .500 |
| 25 | Feb 22 | vs Chicago | L | 68-77 | .500 |
| 26 | Feb 20 | at Philadelphia | W | 76-69 | .600 |
| 27 | Feb 19 | vs Orlando | L | 94-99 | .600 |
| 28 | Feb 11 | vs Charlotte | W | 100-88 | .800 |
| 29 | Feb 9 | at Chicago | W | 87-71 | .636 |
| 30 | Feb 6 | vs New_Jersey | W | 111-106 | .500 |
| 31 | Feb 5 | vs Cleveland | W | 100-83 | .667 |
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