| Boy's 14 years 100m Butterfly | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | MC PS | Splits | Ranking | 
	
		|  | 1. | 1:00.27 | Charlie S | Westside Christ Church Aquatic | 14 | 554 |  | Splits | 
 | 
	
		|  | 2. | 1:01.79 | Leo G | Fremantle Port | 14 | 514 |  | Splits | 
 | 
	
		|  | 3. | 1:01.81 | Beau M | Western Sprint | 14 | 513 |  | Splits | 
 | 
	
		|  | 4. | 1:03.20 | Sam R | UWA West Coast | 13 | 480 |  | Splits | 
 | 
	
		|  | 5. | 1:03.40 | Ali A | Riverton Aquanauts | 14 | 475 |  | Splits | 
 | 
	
		|  | 6. | 1:03.84 | Max P | UWA West Coast | 14 | 466 |  | Splits | 
 | 
	
		|  | 7. | 1:04.77 | Joshua P | Breakers WA | 14 | 446 |  | Splits | 
 | 
	
		|  | 8. | 1:05.14 | George G | Westside Christ Church Aquatic | 13 | 438 |  | Splits | 
 | 
	
		|  | 9. | 1:05.17 | Billy H | North Coast | 13 | 438 |  | Splits | 
 | 
	
		|  | 10. | 1:05.80 | Kaiyo T | Kwinana | 14 | 425 |  | Splits | 
 | 
	
		|  | 11. | 1:05.98 | Beau F | Broome Barracudas | 14 | 422 |  | Splits | 
 | 
	
		|  | 12. | 1:07.40 | Nicholas S | Southside Penrhos Wesley SC In | 14 | 396 |  | Splits | 
 | 
	
		|  | 13. | 1:08.26 | Yani D | Karratha | 14 | 381 |  | Splits | 
 | 
	
		|  | 14. | 1:10.01 | Eli H | South Shore | 13 | 353 |  | Splits | 
 | 
	
		| Boy's 15 years 100m Butterfly | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | MC PS | Splits | Ranking | 
	
		|  | 1. | 58.43 | Romeo Z | Rockingham | 15 | 608 |  | Splits | 
 | 
	
		|  | 2. | 58.89 | Sam C | Breakers WA | 15 | 593 |  | Splits | 
 | 
	
		|  | 3. | 1:00.16 | Tristan L | Riverton Aquanauts | 15 | 557 |  | Splits | 
 | 
	
		|  | 4. | 1:00.43 | Boston Y | South Shore | 15 | 549 |  | Splits | 
 | 
	
		|  | 5. | 1:02.47 | Jacob R | Riverton Aquanauts | 15 | 497 |  | Splits | 
 | 
	
		|  | 6. | 1:03.53 | Hudson M | Western Sprint | 15 | 473 |  | Splits | 
 | 
	
		|  | 7. | 1:03.66 | Fred N | United World College | 15 | 470 |  | Splits |  | 
	
		|  | 8. | 1:03.89 | Griffin S | Southside Penrhos Wesley SC In | 15 | 465 |  | Splits | 
 | 
	
		|  | 9. | 1:05.20 | Jurgens W | Fenix Swim Club Inc. | 15 | 437 |  | Splits | 
 | 
	
		|  | 10. | 1:06.80 | Lucas F | Scarborough Beach | 15 | 406 |  | Splits | 
 | 
	
		|  | 11. | 1:07.79 | Danilo B | South Lake Dolphins | 15 | 389 |  | Splits | 
 | 
	
		|  | 12. | 1:17.01 | John W | South Shore | 15 | 265 |  | Splits | 
 | 
	
		| Men's 16 years 100m Butterfly | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | MC PS | Splits | Ranking | 
	
		|  | 1. | 55.33 | Sean A | St Hilda's | 16 | 716 |  | Splits | 
 | 
	
		|  | 2. | 58.11 | Alexander S | South Lake Dolphins | 16 | 618 |  | Splits | 
 | 
	
		|  | 3. | 58.70 | Fletcher B | Highlanders | 16 | 599 |  | Splits | 
 | 
	
		|  | 4. | 58.82 | Withheld W | Highlanders | 16 | 595 |  | Splits | 
 | 
	
		|  | 5. | 59.50 | Lachlin W | Westside Christ Church Aquatic | 16 | 575 |  | Splits | 
 | 
	
		|  | 6. | 59.70 | Keoni L | Nexus International School | 16 | 570 |  | Splits |  | 
	
		|  | 7. | 59.80 | Callum H | Breakers WA | 16 | 567 |  | Splits | 
 | 
	
		|  | 8. | 1:00.55 | James N | Breakers WA | 16 | 546 |  | Splits | 
 | 
	
		|  | 9. | 1:02.30 | Lochlan P | Broome Barracudas | 16 | 501 |  | Splits | 
 | 
	
		|  | 10. | 1:02.71 | James S | United World College | 16 | 491 |  | Splits |  | 
	
		|  | 11. | 1:03.10 | Allen M | South Shore | 16 | 482 |  | Splits | 
 | 
	
		|  | 12. | 1:03.50 | Liam B | South Shore | 16 | 473 |  | Splits | 
 | 
	
		|  | 13. | 1:05.93 | Sean C | Broome Barracudas | 16 | 423 |  | Splits | 
 | 
	
		| Men's 17 years 100m Butterfly | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | MC PS | Splits | Ranking | 
	
		|  | 1. | 58.69 | Lachlan I | Westside Christ Church Aquatic | 17 | 599 |  | Splits | 
 | 
	
		|  | 2. | 1:00.72 | Daniel B | Fenix Swim Club Inc. | 17 | 541 |  | Splits | 
 | 
	
		|  | 3. | 1:00.86 | Ethan B | South Lake Dolphins | 17 | 538 |  | Splits | 
 | 
	
		|  | 4. | 1:02.72 | Matthew L | Southside Penrhos Wesley SC In | 17 | 491 |  | Splits | 
 | 
	
		| Men's 18 years and over 100m Butterfly | 
	
		| Final | 
	
		|  | Time | Name | Club | Age | FINA PS | MC PS | Splits | Ranking | 
	
		|  | 1. | 54.70 | Damian B | Rockingham | 20 | 741 |  | Splits | 
 | 
	
		|  | 2. | 54.92 | Daniel B | Highlanders | 18 | 732 |  | Splits | 
 | 
	
		|  | 3. | 55.80 | Jayden Y | UWA West Coast | 19 | 698 |  | Splits | 
 | 
	
		|  | 4. | 56.78 | Harrison H | Southside Penrhos Wesley SC In | 21 | 662 |  | Splits | 
 | 
	
		|  | 5. | 57.05 | Thomas M | Westside Christ Church Aquatic | 19 | 653 |  | Splits | 
 | 
	
		|  | 6. | 57.77 | Alec M | South Shore | 20 | 629 |  | Splits | 
 | 
	
		|  | 7. | 58.00 | Jett W | Southside Penrhos Wesley SC In | 21 | 621 |  | Splits | 
 | 
	
		|  | 8. | 58.61 | Kelton R | Southside Penrhos Wesley SC In | 19 | 602 |  | Splits | 
 | 
	
		|  | 9. | 59.22 | Alex S | Bunbury Swimming Club Incorpor | 18 | 583 | 764 | Splits | 
 | 
	
		|  | 10. | 59.67 | Nathan S | Riverton Aquanauts | 18 | 570 |  | Splits | 
 | 
	
		|  | 11. | 59.88 | Joshua P | Guildford & Kalamunda District | 21 | 564 |  | Splits | 
 | 
	
		|  | 12. | 59.93 | William L | Fenix Swim Club Inc. | 23 | 563 |  | Splits | 
 | 
	
		|  | 13. | 1:00.20 | Tyrone C | Southside Penrhos Wesley SC In | 22 | 555 |  | Splits | 
 | 
	
		|  | 14. | 1:00.85 | Hayden F | Westside Christ Church Aquatic | 18 | 538 |  | Splits | 
 | 
	
		|  | 15. | 1:01.03 | Lucas W | UWA West Coast | 19 | 533 |  | Splits | 
 |