Beşiktaş
1998/99Cup Winners' Cup round of 32→Out in the Cup Winners' Cup round of 16
Coefficient points3earned for Türkiye this season
Record1-1-24 matches played
Goals7:6+1 goal difference
Club coefficient3.499the club's own running total
CWC Cup Winners' Cup
Beşiktaş
| Stage | Date | Match | Score | Outcome | Pts |
|---|---|---|---|---|---|
| CWC · R32 · 1st leg | 17 Sep 1998 | Beşiktaş – Spartak Trnava | 3:0 | 2 | |
| CWC · R32 · 2nd leg | 1 Oct 1998 | Spartak Trnava – Beşiktaş | 2:1 | Through to the round of 16 (CWC) | 0 |
| CWC · R16 · 1st leg | 22 Oct 1998 | Vålerenga – Beşiktaş | 1:0 | 0 | |
| CWC · R16 · 2nd leg | 5 Nov 1998 | Beşiktaş – Vålerenga | 3:3 | Eliminated | 1 |
See also: every Türkiye club in 1998/99 · the 1998/99 coefficient table.