| Boy's 14 years 400m Freestyle | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 4:20.34 | Eddie D | Highlanders | 14 | 604 |  | 
 | 
	
		|  | 2. | 4:35.04 | Tighe O | UWA West Coast | 14 | 512 | Splits | 
 | 
	
		|  | 3. | 4:35.72 | Billy H | North Coast | 13 | 508 | Splits | 
 | 
	
		|  | 4. | 4:36.06 | Olly B | North Coast | 13 | 506 | Splits | 
 | 
	
		|  | 5. | 4:37.86 | Max P | UWA West Coast | 14 | 496 | Splits | 
 | 
	
		|  | 6. | 4:39.03 | Thomas B | Bunbury Swimming Club Incorpor | 14 | 490 | Splits | 
 | 
	
		|  | 7. | 4:39.71 | Cambel C | Southside Penrhos Wesley SC In | 14 | 487 | Splits | 
 | 
	
		|  | 8. | 4:40.33 | Dewi J | South Shore | 13 | 483 | Splits | 
 | 
	
		|  | 9. | 4:42.07 | Jaxon D | Guildford & Kalamunda District | 13 | 474 | Splits | 
 | 
	
		|  | 10. | 4:47.81 | Flynn C | Breakers WA | 14 | 447 | Splits | 
 | 
	
		|  | 11. | 4:54.80 | Ethan P | Westside Christ Church Aquatic | 14 | 416 | Splits | 
 | 
	
		|  | 12. | 4:56.79 | Nathan B | North Coast | 14 | 407 | Splits | 
 | 
	
		| Boy's 15 years 400m Freestyle | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 4:10.79 | Sam C | Breakers WA | 15 | 675 | Splits | 
 | 
	
		|  | 2. | 4:13.31 | Javier M | UWA West Coast | 15 | 655 | Splits | 
 | 
	
		|  | 3. | 4:17.65 | Fred N | United World College | 15 | 623 | Splits |  | 
	
		|  | 4. | 4:22.73 | Jack W | Rockingham | 15 | 587 | Splits | 
 | 
	
		|  | 5. | 4:23.55 | Jurgens W | Fenix Swim Club Inc. | 15 | 582 | Splits | 
 | 
	
		|  | 6. | 4:25.25 | Benjamin M | UWA West Coast | 15 | 571 | Splits | 
 | 
	
		|  | 7. | 4:26.31 | Tristan v | Rockingham | 15 | 564 | Splits | 
 | 
	
		|  | 8. | 4:29.24 | Lucas F | Scarborough Beach | 15 | 546 | Splits | 
 | 
	
		|  | 9. | 4:30.56 | Hudson M | Western Sprint | 15 | 538 | Splits | 
 | 
	
		|  | 10. | 4:31.90 | Nikolay D | Fenix Swim Club Inc. | 15 | 530 | Splits | 
 | 
	
		|  | 11. | 4:32.22 | Felix C | Broome Barracudas | 15 | 528 | Splits | 
 | 
	
		|  | 12. | 4:34.45 | Thomas B | South Lake Dolphins | 15 | 515 | Splits | 
 | 
	
		|  | 13. | 4:38.99 | Nicholas K | Scarborough Beach | 15 | 490 | Splits | 
 | 
	
		|  | 14. | 4:48.81 | Kyle J | Australind | 15 | 442 | Splits | 
 | 
	
		|  | 15. | 4:53.78 | Hayden H | North Coast | 15 | 420 | Splits | 
 | 
	
		|  | 16. | 4:55.80 | Noah W | Rockingham | 15 | 411 | Splits | 
 | 
	
		| Men's 16 years 400m Freestyle | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 3:55.46 | Tex C | Highlanders | 16 | 816 | Splits | 
 | 
	
		|  | 2. | 4:03.45 | Lucas F | Breakers WA | 16 | 738 | Splits | 
 | 
	
		|  | 3. | 4:17.15 | Thomas D | South Shore | 16 | 626 | Splits | 
 | 
	
		|  | 4. | 4:17.30 | Owen H | Highlanders | 16 | 625 | Splits | 
 | 
	
		|  | 5. | 4:25.35 | Samuel Z | South Shore | 16 | 570 | Splits | 
 | 
	
		|  | 6. | 4:25.46 | Fletcher B | Highlanders | 16 | 569 | Splits | 
 | 
	
		|  | 7. | 4:27.54 | James S | United World College | 16 | 556 | Splits |  | 
	
		|  | 8. | 4:35.37 | Lachlan E | Nexus International School | 16 | 510 | Splits |  | 
	
		|  | 9. | 4:35.79 | Salie D | UWA West Coast | 16 | 508 | Splits | 
 | 
	
		|  | 10. | 4:46.12 | Sean C | Broome Barracudas | 16 | 455 | Splits | 
 | 
	
		| Men's 17 years 400m Freestyle | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 4:01.32 | Xavier C | Westside Christ Church Aquatic | 17 | 758 | Splits | 
 | 
	
		|  | 2. | 4:03.77 | Braden F | UWA West Coast | 17 | 735 | Splits | 
 | 
	
		|  | 3. | 4:08.12 | Paul H | Nexus International School | 17 | 697 | Splits | 
 | 
	
		|  | 4. | 4:15.69 | Conor L | Rockingham | 17 | 637 | Splits | 
 | 
	
		|  | 5. | 4:20.43 | Harrison G | South Lake Dolphins | 17 | 603 | Splits | 
 | 
	
		|  | 6. | 4:22.03 | Kian R | Southside Penrhos Wesley SC In | 17 | 592 | Splits | 
 | 
	
		|  | 7. | 4:23.37 | Flynn C | Westside Christ Church Aquatic | 17 | 583 | Splits | 
 | 
	
		|  | 8. | 4:26.47 | Jonathon M | UWA West Coast | 17 | 563 | Splits | 
 | 
	
		|  | 9. | 4:31.59 | Ethan B | South Lake Dolphins | 17 | 532 | Splits | 
 | 
	
		|  | 10. | 4:37.63 | Itsuki T | Highlanders | 17 | 498 | Splits | 
 | 
	
		| Men's 18 years and over 400m Freestyle | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 3:57.28 | Robert B | North Coast | 21 | 797 | Splits | 
 | 
	
		|  | 2. | 3:59.69 | Kyle L | North Coast | 21 | 773 | Splits | 
 | 
	
		|  | 3. | 4:01.61 | Johann S | Highlanders | 18 | 755 | Splits | 
 | 
	
		|  | 4. | 4:06.71 | James B | UWA West Coast | 25 | 709 | Splits | 
 | 
	
		|  | 5. | 4:14.35 | Joshua P | Guildford & Kalamunda District | 21 | 647 | Splits | 
 | 
	
		|  | 6. | 4:17.95 | Max C | City of Perth | 20 | 620 | Splits | 
 | 
	
		|  | 7. | 4:18.45 | Andrew M | Westside Christ Church Aquatic | 18 | 617 | Splits | 
 | 
	
		|  | 8. | 4:23.32 | Jordan H | Loreto Normanhurst | 18 | 583 | Splits | 
 |