| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Max Spencer | Wairarapa | 1:58.74q |
| 2 | Jack Elliott | Taranaki | 1:59.58q |
| 3 | Wynton Richards | Auckland | 2:00.91q |
| 4 | Jack Paine | Wellington | 2:02.08 |
| 5 | Jack Gay | Wanganui | 2:03.22 |
| 6 | Lochie Montgomerie | Waikato Bay of Plenty | 2:04.06 |
| 7 | Jacob de Graaf | Auckland | 2:04.81 |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Patrick Dowd | Waikato Bay of Plenty | 1:57.20q |
| 2 | Todd Douglas | East Coast North Island | 1:57.43q |
| 3 | Joseph Sinclair | Wanganui | 1:57.66q |
| 4 | Patrick White | Wellington | 1:57.90q |
| 5 | Andrew Ledger | Wellington | 1:59.62q |
| 6 | Josh Spraggon | North Harbour | 1:59.90 |
| 7 | Travis Bayler | Wanganui | 2:06.28 |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Max Spencer | Wairarapa | 1:55.99 |
| 2 | Patrick Dowd | Waikato Bay of Plenty | 1:56.18 |
| 3 | Todd Douglas | East Coast North Island | 1:57.93 |
| 4 | Joseph Sinclair | Wanganui | 1:58.68 |
| 5 | Jack Elliott | Taranaki | 1:58.76 |
| 6 | Wynton Richards | Auckland | 1:59.64 |
| 7 | Patrick White | Wellington | 2:00.39 |
| 8 | Andrew Ledger | Wellington | 2:04.05 |