| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. J D Yoon vs J Bird |
| 1-0 | 50 | 2024 | London Classic Masters | D45 Queen's Gambit Declined Semi-Slav |
| 27. P Roberson vs J D Yoon |
| 1-0 | 23 | 2024 | London Classic Masters | B13 Caro-Kann, Exchange |
| 28. J D Yoon vs S Verma |
| 1-0 | 34 | 2024 | London Classic Masters | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 29. M Pert vs J D Yoon |
| ½-½ | 31 | 2024 | London Classic Masters | A40 Queen's Pawn Game |
| 30. J D Yoon vs Y Zhou |
| 0-1 | 54 | 2024 | London Classic Masters | E94 King's Indian, Orthodox |
| 31. J D Yoon vs B N Dong |
| 1-0 | 41 | 2025 | 4NCL 2024/25 | A04 Reti Opening |
| 32. J D Yoon vs G Zhao |
| 1-0 | 43 | 2025 | 4NCL 2024/25 | E41 Nimzo-Indian |
| 33. T Carroll vs J D Yoon |
| 1-0 | 56 | 2025 | 4NCL 2024/25 | D07 Queen's Gambit Declined, Chigorin Defense |
| 34. J D Yoon vs D H Maycock Bates |
| ½-½ | 62 | 2025 | 4NCL 2024/25 | E00 Queen's Pawn Game |
| 35. A Golding vs J D Yoon |
| 1-0 | 55 | 2025 | 4NCL 2024/25 | B12 Caro-Kann Defense |
| 36. J D Yoon vs L Cyborowski |
| ½-½ | 39 | 2025 | 4NCL 2024/25 | D37 Queen's Gambit Declined |
| 37. J D Yoon vs M Wadsworth |
| 0-1 | 56 | 2025 | 4NCL 2024/25 | E11 Bogo-Indian Defense |
| 38. Z Varney vs J D Yoon |
| 0-1 | 39 | 2025 | 4NCL 2024/25 | B10 Caro-Kann |
| 39. J D Yoon vs N Berry |
| 0-1 | 55 | 2025 | 4NCL 2024/25 | A06 Reti Opening |
Kibitzing
