| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. C H Umetsubo vs J F Cubas |
| 1-0 | 36 | 2017 | 4th Floripa Masters | D36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc2 |
| 52. C H Umetsubo vs G D Borges |
| ½-½ | 29 | 2017 | Zonal 2.4 | A48 King's Indian |
| 53. M H Andrade Fiaes vs C H Umetsubo |
| ½-½ | 63 | 2017 | Zonal 2.4 | E12 Queen's Indian |
| 54. A Ramirez Alvarez vs C H Umetsubo |
| 1-0 | 40 | 2017 | 12th American Continental | A13 English |
| 55. Pichot vs C H Umetsubo |
| 1-0 | 31 | 2017 | 12th American Continental | C42 Petrov Defense |
| 56. C H Umetsubo vs C Cruz |
| 1-0 | 60 | 2017 | 12th American Continental | E24 Nimzo-Indian, Samisch |
| 57. Kaidanov vs C H Umetsubo |
| 1-0 | 30 | 2017 | 12th American Continental | D32 Queen's Gambit Declined, Tarrasch |
| 58. C H Umetsubo vs Antonio Emilio Shibata |
| ½-½ | 40 | 2017 | 1st AXPG Brazil Open | B01 Scandinavian |
| 59. G de Borba vs C H Umetsubo |
| 0-1 | 36 | 2017 | 1st AXPG Brazil Open | B18 Caro-Kann, Classical |
| 60. C H Umetsubo vs T F Medeiros |
| 1-0 | 46 | 2017 | 1st AXPG Brazil Open | C48 Four Knights |
| 61. S Mareco vs C H Umetsubo |
| 1-0 | 30 | 2017 | 1st AXPG Brazil Open | A06 Reti Opening |
| 62. C H Umetsubo vs J R Braga S Vieira |
| ½-½ | 47 | 2017 | 1st AXPG Brazil Open | C49 Four Knights |
| 63. P A Acosta vs C H Umetsubo |
| 0-1 | 30 | 2017 | 1st AXPG Brazil Open | B14 Caro-Kann, Panov-Botvinnik Attack |
| 64. C H Umetsubo vs Jonathan De Oliveira |
| 1-0 | 42 | 2017 | 1st AXPG Brazil Open | D02 Queen's Pawn Game |
| 65. E Matsuura vs C H Umetsubo |
| 1-0 | 44 | 2018 | Floripa Masters | B14 Caro-Kann, Panov-Botvinnik Attack |
| 66. C H Umetsubo vs J D Mandetta |
| 1-0 | 40 | 2018 | Floripa Masters | A45 Queen's Pawn Game |
| 67. S A Languidey vs C H Umetsubo |
| 1-0 | 58 | 2018 | Floripa Masters | A07 King's Indian Attack |
| 68. D Di Berardino vs C H Umetsubo |
| ½-½ | 42 | 2018 | Floripa Masters | D55 Queen's Gambit Declined |
| 69. C H Umetsubo vs J F Cubas |
| 0-1 | 35 | 2018 | Floripa Masters | E26 Nimzo-Indian, Samisch |
| 70. A Rodriguez Vila vs C H Umetsubo |
| 1-0 | 26 | 2018 | Floripa Masters | B18 Caro-Kann, Classical |
| 71. C H Umetsubo vs C Gauche |
| 1-0 | 34 | 2018 | Floripa Masters | D85 Grunfeld |
| 72. E M Sobrinho vs C H Umetsubo |
| 0-1 | 48 | 2018 | Floripa Masters | D60 Queen's Gambit Declined, Orthodox Defense |
| 73. C H Umetsubo vs L Perdomo |
| 1-0 | 68 | 2018 | Floripa Masters | E67 King's Indian, Fianchetto |
| 74. C H Umetsubo vs V H Ribeiro Carrico |
| 1-0 | 17 | 2021 | Brazilian Championship | E32 Nimzo-Indian, Classical |
| 75. T Bandeira vs C H Umetsubo |
| 0-1 | 42 | 2021 | Brazilian Championship | B86 Sicilian, Fischer-Sozin Attack |
Kibitzing
