Stephon Marbury led the NBA in Assists in 1998-99 with 20.
That is 1 more assists than second-place Jason Kidd.
| Rk | Player | Team | Date | Value |
|---|---|---|---|---|
| 1 | Stephon Marbury | NJN | 1999-04-25 | 20 |
| 2 | Jason Kidd | PHX | 1999-03-04 | 19 |
| 3 | Jason Kidd | PHX | 1999-02-26 | 18 |
| 4 | Mark Jackson | IND | 1999-03-03 | 17 |
| 5 | Terrell Brandon | MIN | 1999-04-03 | 16 |
| 6 | Gary Payton | SEA | 1999-02-13 | 16 |
| 7 | Terrell Brandon | MIN | 1999-04-28 | 16 |
| 8 | Rod Strickland | WAS | 1999-03-20 | 16 |
| 9 | Brevin Knight | CLE | 1999-03-15 | 16 |
| 10 | Jason Kidd | PHX | 1999-02-13 | 16 |
| 11 | Jason Kidd | PHX | 1999-02-25 | 16 |
| 12 | Stephon Marbury | MIN | 1999-02-28 | 16 |
| 13 | Stephon Marbury | MIN | 1999-02-21 | 15 |
| 14 | Brevin Knight | CLE | 1999-04-06 | 15 |
| 15 | Jason Kidd | PHX | 1999-03-12 | 15 |