| USA Baseball 18U National Team | Jack McDowell | Commons | 9 | 25 |
| USA Baseball 18U National Team | Jack McDowell | PRIDE | 20 | 399 |
| USA Baseball 18U National Team | Jack McDowell | Stars and Stripes Green Ink Signatures | 14 | 2 |
| USA Baseball 18U National Team | Jack McDowell | Stars and Stripes Red Ink Signatures | 14 | 25 |
| USA Baseball 18U National Team | Jack McDowell | Stars and Stripes Signatures | 14 | 364 |
| USA Baseball 18U National Team | Jack McDowell | USA Baseball Legends Certified Die-Cuts | 16 | 699 |
| USA Baseball 18U National Team | Jack McDowell | USA Baseball Legends Certified Die-Cuts Mirror Blue | 16 | 199 |
| USA Baseball 18U National Team | Jack McDowell | USA Baseball Legends Certified Die-Cuts Mirror Gold | 16 | 25 |
| USA Baseball 18U National Team | Jack McDowell | USA Baseball Legends Certified Die-Cuts Mirror Green | 16 | 199 |
| USA Baseball 18U National Team | Jack McDowell | USA Baseball Legends Certified Die-Cuts Mirror Red | 16 | 299 |
