 USA: W35 Arcadia, CA - Singles - Main |
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| 1/8-finals | Chang H. | Douglas E. | 2:0 (7:62, 6:2) | details | 04.01.2024 |
| 1/16-finals | Douglas E. | McCray M. | 2:0 (6:3, 6:3) | details | 03.01.2024 |
 Mexico: W40 Veracruz - Singles - Main |
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| 1/16-finals | Chang H. | Douglas E. | 2:0 (6:3, 6:3) | details | 28.11.2023 |
| USA: W25 Austin, TX - Singles - Main |
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| Quarter-finals | Douglas E. | Chang H. | 0:2 (4:6, 0:6) | details | 17.11.2023 |
| 1/8-finals | Min G. | Douglas E. | 0:2 (4:6, 0:6) | details | 16.11.2023 |
| 1/16-finals | Han J. | Douglas E. | 1:2 (62:7, 6:1, 2:6) | details | 14.11.2023 |
| USA: W100 Charleston, SC 2 - Singles - Main |
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| 1/16-finals | Douglas E. | Mandlik E. | 0:2 (4:6, 65:7) | details | 08.11.2023 |
| USA: W80 Tyler, TX - Singles - Main |
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| 1/16-finals | Douglas E. | Kessler M. | 1:2 (6:4, 1:6, 3:6) | details | 24.10.2023 |
| USA: W60 Rancho Santa Fe, CA - Singles - Main |
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| 1/8-finals | Douglas E. | Sun L. | 0:2 (3:6, 66:7) | details | 12.10.2023 |
| 1/16-finals | Douglas E. | Ly-Nguyen S. | 2:0 (7:62, 7:63) | details | 11.10.2023 |
| USA: W25 Redding, CA - Singles - Main |
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| 1/16-finals | Douglas E. | Jovic I. | 0:2 (67:7, 4:6) | details | 04.10.2023 |
| USA: W60 Berkeley, CA - Singles - Main |
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| Semi-finals | Stakusic M. | Douglas E. | 2:0 (6:3, 6:2) | details | 23.09.2023 |
| Quarter-finals | Douglas E. | Defalco J. | 2:1 (66:7, 6:4, 6:3) | details | 22.09.2023 |
| 1/8-finals | Sebov K. | Douglas E. | 0:2 (2:6, 63:7) | details | 21.09.2023 |
| 1/16-finals | Douglas E. | Ma L. | 2:0 (7:5, 6:2) | details | 20.09.2023 |
 Peru: W40 Arequipa - Singles - Main |
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| 1/8-finals | Douglas E. | Muntean V. | 0:2 (5:7, 0:6) | details | 17.08.2023 |
| 1/16-finals | Romero C. | Douglas E. | 0:2 (2:6, 3:6) | details | 15.08.2023 |
| USA: W25 Dallas, TX - Singles - Main |
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| 1/16-finals | Manasse M. | Douglas E. | 2:0 (6:4, 6:0) | details | 27.07.2022 |
| USA: W60 Evansville, IN - Singles - Main |
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| 1/16-finals | Day K. | Douglas E. | 2:0 (6:2, 7:64) | details | 20.07.2022 |
| USA: W100 Charleston, SC 2 - Singles - Main |
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| 1/16-finals | Douglas E. | Papamichail D. | 1:2 (7:65, 3:6, 4:6) | details | 29.06.2022 |
| USA: W25 Sumter, SC - Singles - Main |
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| Quarter-finals | Douglas E. | Chang S. | 0:2 (3:6, 1:6) | details | 17.06.2022 |
| 1/8-finals | Douglas E. | Miroshnichenko V. | 2:0 (6:4, 6:4) | details | 16.06.2022 |
| 1/16-finals | Douglas E. | Vasilescu A. | 2:0 (6:2, 6:2) | details | 14.06.2022 |
| USA: W60 Orlando, FL 2 - Singles - Main |
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| Quarter-finals | Vickery S. | Douglas E. | 2:0 (6:2, 6:1) | details | 27.05.2022 |
| 1/8-finals | Douglas E. | Loeb J. | 2:1 (4:6, 7:62, 6:2) | details | 26.05.2022 |
| 1/16-finals | Kalieva E. | Douglas E. | 0:2 (4:6, 0:6) | details | 25.05.2022 |
| USA: W60 Pelham, AL - Singles - Main |
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| 1/8-finals | Douglas E. | Kolodynska J. | 0:2 (0:6, 4:6) | details | 19.05.2022 |
| 1/16-finals | Douglas E. | Kononova M. | 2:0 (6:2, 6:1) | details | 18.05.2022 |
| USA: W100 Bonita Springs, FL - Singles - Main |
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| 1/8-finals | Kawa K. | Douglas E. | 2:0 (6:1, 6:3) | details | 05.05.2022 |
| 1/16-finals | Douglas E. | Norin F. | 2:0 (6:3, 6:0) | details | 04.05.2022 |
| USA: W60 Charlottesville, VA - Singles - Main |
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| Quarter-finals | Douglas E. | Stefanini L. | 0:2 (2:6, 5:7) | details | 22.04.2022 |
| 1/8-finals | Douglas E. | Osuigwe W. | 2:1 (4:6, 6:4, 7:5) | details | 21.04.2022 |
| 1/16-finals | Parks A. | Douglas E. | 0:2 (4:6, 1:6) | details | 20.04.2022 |
| USA: Charleston - Singles - Qualification |
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| Semi-finals | Douglas E. | Lee G. | 0:2 (65:7, 4:6) | details | 02.04.2022 |
| Mexico: W60+H Irapuato - Singles - Main |
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| Quarter-finals | Alves C. | Douglas E. | 2:1 (4:6, 7:65, 6:1) | details | 11.03.2022 |
| 1/8-finals | Douglas E. | Hartono A. | 2:1 (7:5, 5:7, 6:0) | details | 10.03.2022 |
| 1/16-finals | Douglas E. | Christian K. | 2:0 (7:62, 6:2) | details | 08.03.2022 |
| USA: W60 Arcadia, CA - Singles - Main |
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| Semi-finals | Douglas E. | Marino R. | 0:2 (3:6, 2:6) | details | 05.03.2022 |
| Quarter-finals | Hon P. | Douglas E. | 0:2 (2:6, 2:6) | details | 04.03.2022 |
| 1/8-finals | Douglas E. | Krunic A. | 2:0 (6:2, 6:1) | details | 03.03.2022 |
| 1/16-finals | Douglas E. | Codd K. | 2:0 (6:3, 6:3) | details | 02.03.2022 |
| USA: W25 Naples, FL 2 - Singles - Main |
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| 1/16-finals | Dmitruk K. | Douglas E. | 2:0 (7:5, 7:62) | details | 17.11.2021 |
| USA: W25 Daytona Beach, FL - Singles - Main |
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| 1/16-finals | Uchijima M. | Douglas E. | 2:0 (6:4, 6:3) | details | 10.11.2021 |
| USA: W100 Charleston, SC 2 - Doubles - Main |
|---|
| 1/8-finals | Smith A./Vickery S. | Bennett D./Douglas E. | 2:0 (6:3, 6:4) | details | 07.11.2023 |
| USA: W25 Dallas, TX - Doubles - Main |
|---|
| Quarter-finals | Rogers A. S./Rosca C. | Douglas E./Stearns P. | 2:1 (3:6, 6:1, 10:6) | details | 28.07.2022 |
| 1/8-finals | Douglas E./Stearns P. | Doyle H./Mavor L. | 2:0 (6:3, 6:1) | details | 26.07.2022 |
| USA: W100 Charleston, SC 2 - Doubles - Main |
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| 1/8-finals | Douglas E./Jokic K. | Mateas M./Papamichail D. | 1:2 (6:3, 4:6, 7:10) | details | 01.07.2022 |
| USA: W100 Palm Harbor, FL - Doubles - Main |
|---|
| Semi-finals | Bara I./Stefanini L. | Day K./Douglas E. | 2:0 (6:3, 6:1) | details | 15.04.2022 |
| Quarter-finals | Chirico L./Min G. | Day K./Douglas E. | 0:2 (4:6, 63:7) | details | 14.04.2022 |
| 1/8-finals | Day K./Douglas E. | Bektas E./Moore T. | 1:0 RET. (7:5, 1:0) | details | 12.04.2022 |