| Boy's 14 years 200m Backstroke | 
	
		| Heat | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 2:21.27 | Charles W | Guildford & Kalamunda District | 14 | 497 | Splits | 
 | 
	
		|  | 2. | 2:24.41 | Adam S | City of Perth | 14 | 465 | Splits | 
 | 
	
		|  | 3. | 2:25.84 | Quinn B | Westside Christ Church Aquatic | 14 | 451 | Splits | 
 | 
	
		|  | 4. | 2:27.10 | Aldrich F | South Lake Dolphins | 14 | 440 | Splits | 
 | 
	
		|  | 5. | 2:27.18 | Rhys F | North Coast | 14 | 439 | Splits | 
 | 
	
		|  | 6. | 2:28.15 | Monty S | Southside Penrhos Wesley SC In | 14 | 431 | Splits | 
 | 
	
		|  | 7. | 2:30.79 | Jackson C | Rockingham | 14 | 408 | Splits | 
 | 
	
		|  | 8. | 2:32.42 | Saxon C | Fremantle Port | 14 | 395 | Splits | 
 | 
	
		|  | 9. | 2:35.12 | Jack K | Highlanders | 13 | 375 | Splits | 
 | 
	
		|  | 10. | 2:36.77 | Seight S | South Lake Dolphins | 14 | 363 | Splits | 
 | 
	
		|  | 11. | 2:37.28 | Benny Z | UWCSEA-EAST | 14 | 360 | Splits | 
 | 
	
		| Boy's 15 years 200m Backstroke | 
	
		| Heat | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 2:10.49 | Tadhg S | Arena | 15 | 630 | Splits | 
 | 
	
		|  | 2. | 2:16.53 | Yani D | Karratha | 15 | 550 | Splits | 
 | 
	
		|  | 3. | 2:18.44 | Joseph B | Arena | 15 | 528 | Splits | 
 | 
	
		|  | 4. | 2:18.72 | Zach O | UWA West Coast | 15 | 525 | Splits | 
 | 
	
		|  | 5. | 2:21.11 | Frederick C | Highlanders | 15 | 498 | Splits | 
 | 
	
		|  | 6. | 2:22.29 | Christian W | South Shore | 15 | 486 | Splits | 
 | 
	
		|  | 7. | 2:22.72 | Tighe O | UWA West Coast | 15 | 482 | Splits | 
 | 
	
		|  | 8. | 2:28.09 | Cambel C | Southside Penrhos Wesley SC In | 15 | 431 | Splits | 
 | 
	
		|  | 9. | 2:29.74 | Daniel A | Riverside | 15 | 417 | Splits | 
 | 
	
		|  | 10. | 2:30.98 | Samanyu V | South Lake Dolphins | 15 | 407 | Splits | 
 | 
	
		|  | 11. | 2:34.41 | Brian H | Riverton Aquanauts | 15 | 380 | Splits | 
 | 
	
		| Men's 16 years 200m Backstroke | 
	
		| Heat | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 2:13.71 | Benjamin M | UWA West Coast | 16 | 586 | Splits | 
 | 
	
		|  | 2. | 2:16.87 | Jack A | Highlanders | 16 | 546 | Splits | 
 | 
	
		|  | 3. | 2:17.06 | Tristan v | Rockingham | 16 | 544 | Splits | 
 | 
	
		|  | 4. | 2:20.10 | Danilo B | South Lake Dolphins | 16 | 509 | Splits | 
 | 
	
		|  | 5. | 2:20.98 | Sean N | South Lake Dolphins | 16 | 500 | Splits | 
 | 
	
		|  | 6. | 2:21.99 | Nikolay D | Westside Christ Church Aquatic | 16 | 489 | Splits | 
 | 
	
		|  | 7. | 2:24.46 | Tyson J | Breakers WA | 16 | 465 | Splits | 
 | 
	
		|  | 8. | 2:24.98 | Kyle J | Australind | 16 | 460 | Splits | 
 | 
	
		|  | 9. | 2:26.85 | James T | Westside Christ Church Aquatic | 16 | 442 | Splits | 
 | 
	
		|  | 10. | 2:32.90 | Keno P | South Lake Dolphins | 16 | 392 | Splits | 
 | 
	
		| Men's 17 years 200m Backstroke | 
	
		| Heat | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 2:12.87 | Bailey B | Guildford & Kalamunda District | 17 | 597 | Splits | 
 | 
	
		|  | 2. | 2:19.45 | Luke O | UWA West Coast | 17 | 516 | Splits | 
 | 
	
		|  | 3. | 2:22.31 | James N | Arena | 17 | 486 | Splits | 
 | 
	
		|  | 4. | 2:24.23 | Royce T | UWA West Coast | 17 | 467 | Splits | 
 | 
	
		|  | 5. | 2:26.06 | Lochlan P | Westside Christ Church Aquatic | 17 | 449 | Splits | 
 | 
	
		|  | 6. | 2:32.19 | Parker S | Nexus International School | 17 | 397 | Splits |  | 
	
		| Men's 18 years and over 200m Backstroke | 
	
		| Heat | 
	
		|  | Time | Name | Club | Age | FINA PS | Splits | Ranking | 
	
		|  | 1. | 2:06.16 | Thomas P | Highlanders | 19 | 698 | Splits | 
 | 
	
		|  | 2. | 2:09.44 | William P | Nunawading | 20 | 646 | Splits | 
 | 
	
		|  | 3. | 2:16.76 | Daniel E | South Shore | 18 | 548 | Splits | 
 | 
	
		|  | 4. | 2:20.64 | Harrison G | South Lake Dolphins | 18 | 503 | Splits | 
 |