| Norman ITF | Round | Result | H | A | 
		
			| 14.11. |  | Maltb / Lee G - Muell / Weinh | R16 | 66-7, 6-4, 10-6 | 2.46 | 1.48 | 
		
			| Waco ITF | Round | Result | H | A | 
		
			| 09.11. |  | Gonca / Maran - Chang / Muell | QF | 6-3, 2-6, 13-11 | 1.95 | 1.71 | 
		
			| 08.11. |  | Chang / Muell - Gabue / Kukha | R16 | 6-3, 6-3 | 1.18 | 4.03 | 
		
			| Tyler ITF | Round | Result | H | A | 
		
			| 02.11. |  | Pegul / Towns - Chang / Muell | QF | 6-4, 4-6, 10-6 | 1.63 | 2.07 | 
		
			| 02.11. |  | Chang / Muell - Marda / Racik | R16 | 6-2, 6-0 |  |  | 
		
			| Macon 2 ITF | Round | Result | H | A | 
		
			| 27.10. |  | Chris / Santa - Chang / Muell | SF | 6-3, 6-2 | 1.98 | 1.71 | 
		
			| 26.10. |  | Chang / Muell - Eiker / Kosto | QF | 6-3, 7-67 | 1.82 | 1.82 | 
		
			| 25.10. |  | Chang / Muell - Day K / Kratz | R16 | 7-610, 2-6, 10-7 | 1.66 | 2.03 | 
		
			| Florence (USA) ITF | Round | Result | H | A | 
		
			| 18.10. |  | Apple / Di Lo - Chang / Muell | R16 | 7-5, 6-4 | 2.54 | 1.45 | 
		
			| Sumter 2 ITF | Round | Result | H | A | 
		
			| 14.10. |  | Pegul / Towns - Muell / Whori | F | 4-6, 7-5, 10-5 | 1.60 | 2.15 | 
		
			| 13.10. |  | Muell / Whori - Borth / Moore | SF | 6-2, 6-2 | 1.52 | 2.34 | 
		
			| 12.10. |  | Muell / Whori - Gamar / Pigos | QF | 6-4, 7-61 | 1.37 | 2.93 | 
		
			| 11.10. |  | Muell / Whori - Eiker / Zacar | R16 | 7-64, 6-2 | 1.40 | 2.68 | 
		
			| Albuquerque ITF | Round | Result | H | A | 
		
			| 23.09. |  | Golub / Sadik - Chang / Muell | SF | 6-3, 7-65 | 1.67 | 2.03 | 
		
			| 23.09. |  | Chang / Muell - Santa / Zhao | QF | 5-7, 6-4, 10-8 | 1.63 | 2.08 | 
		
			| 21.09. |  | Chang / Muell - Gleas / Kobel | R16 | 2-6, 6-3, 10-8 | 1.41 | 2.63 | 
		
			| Las Vegas ITF | Round | Result | H | A | 
		
			| 17.09. |  | Mesta / Robso - Chang / Muell | F | 7-67, 7-62 | 1.79 | 1.85 | 
		
			| 15.09. |  | Chang / Muell - Carri / Smith | SF | 6-1, 6-1 | 1.06 | 6.89 | 
		
			| 15.09. |  | Chang / Muell - Gordo / Van N | QF | 6-4, 6-1 | 1.33 | 2.95 | 
		
			| 14.09. |  | Chang / Muell - Bonda / Nefed | R16 | 6-2, 6-1 | 1.08 | 6.11 | 
		
			| Landisville 2 ITF | Round | Result | H | A | 
		
			| 13.08. |  | Chang / Muell - Lykin / Weble | F | 4-6, 6-3, 10-5 | 1.97 | 1.71 | 
		
			| 12.08. |  | Chang / Muell - Imani / Sema | SF | 6-4, 66-7, 10-8 | 1.71 | 1.98 | 
		
			| 10.08. |  | Chang / Muell - Hibi / Whori | QF | 6-3, 6-2 | 1.90 | 1.79 | 
		
			| 09.08. |  | Chang / Muell - Elie / Weinh | R16 | 6-3, 6-3 | 1.82 | 1.82 | 
		
			| Washington | Round | Result | H | A | 
		
			| 01.08. |  | Aoyam / Vorac - Chang / Muell | R16 | 4-6, 6-1, 10-6 | 1.18 | 4.33 | 
		
			| Sacramento ITF | Round | Result | H | A | 
		
			| 28.07. |  | Kratz / Simmo - Muell / Wacni | QF | 6-4, 6-4 | 1.83 | 1.82 | 
		
			| 26.07. |  | Muell / Wacni - Kozac / Wise | R16 | 6-1, 6-3 | 1.02 | 11.00 | 
		
			| Stockton ITF | Round | Result | H | A | 
		
			| 20.07. |  | Chris / Shiba - Chang / Muell | QF | 6-3, 5-7, 11-9 | 2.86 | 1.35 | 
		
			| 19.07. |  | Chang / Muell - Falco / Min G | R16 | 6-4, 6-3 | 1.42 | 2.58 | 
		
			| Winnipeg ITF | Round | Result | H | A | 
		
			| 14.07. |  | Kuwat / Savin - Muell / Perez | SF | 6-4, 6-3 | 1.58 | 2.18 | 
		
			| 13.07. |  | Muell / Perez - Imani / Zacar | QF | 6-1, 7-5 | 1.57 | 2.25 | 
		
			| 10.07. |  | Muell / Perez - Faill / Leduc | R16 | 6-3, 6-2 | 1.10 | 5.53 | 
		
			| Sumter ITF | Round | Result | H | A | 
		
			| 16.06. |  | Perez / Stefa - Chang / Muell | SF | 7-5, 7-64 | 2.13 | 1.61 | 
		
			| 15.06. |  | Chang / Muell - Facey / Kratz | QF | 6-1, 3-6, 10-6 | 1.21 | 3.81 | 
		
			| 14.06. |  | Chang / Muell - Carte / Daave | R16 | 6-4, 7-61 | 1.28 | 3.23 | 
		
			| Bethany Beach ITF | Round | Result | H | A | 
		
			| 10.06. |  | Santa / Tere - Chang / Muell | F | 6-4, 6-0 | 2.15 | 1.61 | 
		
			| 09.06. |  | Chang / Muell - Chris / Halba | SF | 7-5, 6-3 | 1.57 | 2.21 | 
		
			| 08.06. |  | Chang / Muell - Aney / Graha | QF | 7-63, 6-2 | 1.16 | 4.42 | 
		
			| 06.06. |  | Chang / Muell - Ooste / Parks | R16 | 6-2, 6-0 | 1.16 | 4.45 | 
		
			| Naples 3 ITF | Round | Result | H | A | 
		
			| 09.05. |  | Mayne / Sanch - Kobel / Muell | R16 | 6-4, 3-6, 10-8 | 2.45 | 1.49 | 
		
			| Charleston ITF | Round | Result | H | A | 
		
			| 04.05. |  | Bekta / Guara - Muell / Wacni | QF | 6-1, 6-4 | 1.35 | 2.89 | 
		
			| 02.05. |  | Muell / Wacni - Arcon / Kratz | R16 | 7-64, 6-3 | 2.67 | 1.39 | 
		
			| Charlottesville ITF | Round | Result | H | A | 
		
			| 25.04. |  | Robil / Zhao - Kosto / Muell | R16 | 1-6, 7-63, 10-8 | 2.23 | 1.56 | 
		
			| Dothan ITF | Round | Result | H | A | 
		
			| 21.04. |  | Bekta / Maran - Morgi / Muell | QF | 6-1, 6-4 | 1.65 | 2.05 | 
		
			| 18.04. |  | Morgi / Muell - Elbab / Zaraz | R16 | 7-64, 6-1 |  |  | 
		
			| Tampa Bay ITF | Round | Result | H | A | 
		
			| 16.03. |  | Guara / Hsu C - Chang / Muell | QF | 6-3, 2-6, 10-3 | 1.82 | 1.83 | 
		
			| 15.03. |  | Chang / Muell - Klase / Koelz | R16 | 6-2, 6-4 | 1.35 | 2.95 | 
		
			| Orlando 2 ITF | Round | Result | H | A | 
		
			| 09.03. |  | Schol / Zacar - Chang / Muell | QF | 4-6, 6-2, 10-2 | 1.83 | 1.82 | 
		
			| 08.03. |  | Chang / Muell - Kisse / Nefed | R16 | 6-1, 6-1 | 1.06 | 7.39 | 
		
			| Midland ITF | Round | Result | H | A | 
		
			| 04.02. |  | Day K / Doleh - Chang / Muell | SF | 6-2, 3-6, 10-2 | 1.70 | 2.00 | 
		
			| 02.02. |  | Chang / Muell - Ceped / Gonza | QF | 4-1 | 2.71 | 1.39 | 
		
			| 02.02. |  | Chang / Muell - Crawf / Sanch | R16 | 3-6, 6-2, 10-3 | 2.67 | 1.39 | 
		
			| Wesley Chapel ITF | Round | Result | H | A | 
		
			| 24.01. |  | Ivano / Werne - Chang / Muell | R16 | 6-3, 6-4 | 3.14 | 1.32 |