Vitals
- Position: Guard · Height: 6-5 · Weight: 233
- Draft: Undrafted out of Rutgers in 2022.
- Experience: 5 seasons · School: Rutgers · Nationality: United States
- Contract: Re-signed by Boston ($10M / 3 years) in the 2026 offseason.
Stats
| PTS | REB | AST | STL | BLK | FG% | 3P% | FT% |
|---|---|---|---|---|---|---|---|
| 4.2 | 1.7 | 0.8 | 0.3 | 0.3 | 41.8 | 35.0 | 75.0 |
Per-game averages. Stat sources: ESPN, 2025-26 final.
Full career stats
| Season | Team | G | PTS | REB | AST | STL | BLK | FG% | 3P% | FT% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2022-23 | TOR | 9 | 2.2 | 0.8 | 0.4 | 0.0 | 0.1 | 50.0 | 33.3 | 100.0 |
| 2023-24 | TOR | 1 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 2024-25 | TOR | 1 | 4.0 | 7.0 | 2.0 | 0.0 | 0.0 | 12.5 | 0.0 | 100.0 |
| 2025-26 | BOS | 29 | 4.2 | 1.7 | 0.8 | 0.3 | 0.3 | 41.8 | 35.0 | 75.0 |
| Career | 40 | 3.6 | 1.6 | 0.7 | 0.2 | 0.2 | 41.9 | 32.9 | 79.4 |
Role
Rotation guard off the bench. Harper is a strong, physical wing who attacks closeouts and defends with effort. Boston re-signed him for three years and $10 million in the 2026 offseason.
How he got here
Re-signed by Boston ($10M / 3 years) in the 2026 offseason. Undrafted out of Rutgers in 2022.
The Sports Nus coverage
No stories on Jr. yet. When he breaks out or the rotation changes, it lands here and on the Celtics page.
Roster and contract details via RealGM, October 2026. Stats are per-game points, rebounds and assists.