Week 4 - March 27, 2018
| 2018 NJCAA DIII Baseball Poll - Week 4 | |||||
| Rank | Team | Record | Points | 1st Place Votes | Prev. Rank |
| 1 | RCSJ-Cumberland (NJ) | 17-4 | 63 | 4 | 1 |
| 2 | RCSJ-Gloucester (NJ) | 12-1 | 62 | 2 | 4 |
| 3 | Brookhaven (TX) | 18-6 | 57 | 1 | 3 |
| 4 | Bergen (NJ) | 11-3 | 44 | 0 | 5 |
| 5 | Niagara County (NY) | 10-2 | 42 | 0 | 8 |
| 6 | Coastal Bend (TX) | 24-13 | 36 | 0 | 2 |
| 7 | Eastfield (TX) | 22-7 | 33 | 0 | RV |
| 8 | Waubonsee (IL) | 12-4 | 19 | 0 | 9 |
| 9 | Oakton (IL) | 9-2 | 16 | 0 | RV |
| 10 | Herkimer (NY) | 7-5 | 7 | 0 | N/A |
Receiving Votes: Itasca (MN), Century (MN)