| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Xiong vs J D Williams |
| 1-0 | 40 | 2014 | ch-USA Junior | B40 Sicilian |
| 27. J D Williams vs S Azarov |
 | 1-0 | 40 | 2014 | Millionaire Chess Open | A06 Reti Opening |
| 28. J D Williams vs L Milman |
| 0-1 | 23 | 2014 | Millionaire Chess Open | A09 Reti Opening |
| 29. J D Williams vs A Barnett |
| 1-0 | 42 | 2014 | Millionaire Chess Open | A04 Reti Opening |
| 30. R Barcenilla vs J D Williams |
| 1-0 | 36 | 2014 | Millionaire Chess Open | A30 English, Symmetrical |
| 31. J Bryant vs J D Williams |
| 1-0 | 34 | 2015 | North American op 25th | B22 Sicilian, Alapin |
| 32. I Nyzhnyk vs J D Williams |
| 1-0 | 32 | 2016 | SPICE Cup Open | A38 English, Symmetrical |
| 33. J D Williams vs Swiercz |
| 0-1 | 39 | 2016 | Pan-Am Intercollegiate | E62 King's Indian, Fianchetto |
| 34. J Borisek vs J D Williams |
| 1-0 | 59 | 2017 | PRO League Group Stage | B27 Sicilian |
| 35. J D Williams vs J Banawa |
| 0-1 | 64 | 2017 | St Louis Winter IM | A36 English |
| 36. J D Williams vs B Moon |
| 0-1 | 57 | 2017 | Chicago op 26th | E62 King's Indian, Fianchetto |
| 37. J D Williams vs L Bruzon Batista |
| 0-1 | 65 | 2017 | SPICE Cup Open | A63 Benoni, Fianchetto, 9...Nbd7 |
| 38. E Cordova vs J D Williams |
| 1-0 | 34 | 2017 | SPICE Cup Open | A46 Queen's Pawn Game |
| 39. J D Williams vs Yermolinsky |
| 0-1 | 22 | 2017 | SPICE Cup Open | A04 Reti Opening |
| 40. J D Williams vs J Furfine |
| ½-½ | 61 | 2017 | SPICE Cup Open | A06 Reti Opening |
| 41. Sevian vs J D Williams |
| 1-0 | 30 | 2019 | Bay Area International Open | B92 Sicilian, Najdorf, Opocensky Variation |
| 42. J D Williams vs T Kung |
| 1-0 | 33 | 2019 | Bay Area International Open | A28 English |
| 43. S Zierk vs J D Williams |
| ½-½ | 39 | 2019 | Bay Area International Open | A45 Queen's Pawn Game |
| 44. L Harmon-Vellotti vs J D Williams |
| 0-1 | 60 | 2019 | Bay Area International Open | B32 Sicilian |
| 45. J D Williams vs J D Ruiz Castillo |
| ½-½ | 30 | 2019 | Bay Area International Open | A46 Queen's Pawn Game |
| 46. J D Williams vs A Ostrovskiy |
| ½-½ | 30 | 2019 | Bay Area International Open | A06 Reti Opening |
| 47. A Katz vs J D Williams |
| 1-0 | 25 | 2019 | Bay Area International Open | B22 Sicilian, Alapin |
| 48. C A Hevia Alejano vs J D Williams |
| 1-0 | 77 | 2019 | Bay Area International Open | A30 English, Symmetrical |
| 49. J D Williams vs K Ghazarian |
| 1-0 | 59 | 2019 | Bay Area International Open | A37 English, Symmetrical |
| 50. K Korley vs J D Williams |
| ½-½ | 70 | 2022 | New York Summer Invitational | E15 Queen's Indian |
Kibitzing
