| Zydrunas Ilgauskas Rankings 2003-2004 | Stats Glossary  |
| Games with 19 or more Efficiency Recap | Cleveland Cavaliers Record : 20 - 15 | Zydrunas Ilgauskas |
| No | Date | Game | Res | Score | Efficiency Recap |
| 1 | Apr 14 | at New_York | W | 100-90 | 19 |
| 2 | Apr 12 | vs Milwaukee | W | 93-89 | 27 |
| 3 | Apr 9 | at Miami | L | 91-106 | 22 |
| 4 | Apr 6 | vs Toronto | L | 86-87 | 22 |
| 5 | Mar 30 | at Dallas | L | 109-126 | 19 |
| 6 | Mar 29 | at San_Antonio | L | 93-101 | 19 |
| 7 | Mar 27 | vs New_Jersey | W | 107-104 | 20 |
| 8 | Mar 19 | vs Utah | L | 88-97 | 24 |
| 9 | Mar 16 | vs Chicago | W | 111-87 | 35 |
| 10 | Mar 14 | vs Indiana | W | 107-104 | 21 |
| 11 | Mar 10 | at Toronto | W | 106-92 | 36 |
| 12 | Mar 8 | at Atlanta | W | 108-102 | 26 |
| 13 | Mar 6 | vs Milwaukee | W | 106-97 | 35 |
| 14 | Mar 3 | vs Atlanta | W | 112-80 | 24 |
| 15 | Mar 1 | at Chicago | L | 81-92 | 24 |
| 16 | Feb 27 | at Orlando | W | 112-107 | 21 |
| 17 | Feb 23 | vs New_Orleans | W | 104-100 | 21 |
| 18 | Feb 22 | at New_York | W | 92-86 | 38 |
| 19 | Feb 20 | vs San_Antonio | W | 89-87 | 20 |
| 20 | Feb 11 | vs New_Jersey | L | 85-105 | 28 |
| 21 | Feb 9 | vs Boston | W | 97-89 | 26 |
| 22 | Feb 7 | vs Washington | L | 88-106 | 22 |
| 23 | Jan 28 | vs Miami | W | 94-93 | 37 |
| 24 | Jan 13 | at Seattle | W | 104-96 | 19 |
| 25 | Jan 6 | vs New_York | W | 107-96 | 27 |
| 26 | Dec 20 | at Chicago | W | 95-87 | 26 |
| 27 | Dec 6 | vs Atlanta | W | 95-85 | 21 |
| 28 | Dec 3 | at L.A.Clippers | L | 80-90 | 31 |
| 29 | Dec 2 | at Denver | L | 103-115 | 24 |
| 30 | Nov 29 | vs Memphis | L | 115-122 | 20 |
| 31 | Nov 26 | at New_Orleans | L | 72-82 | 24 |
| 32 | Nov 22 | at Atlanta | L | 83-92 | 30 |
| 33 | Nov 15 | vs Philadelphia | W | 91-88 | 35 |
| 34 | Nov 14 | at Boston | L | 82-91 | 26 |
| 35 | Nov 1 | at Portland | L | 85-104 | 19 |
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