Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. S Fridthjofsdottir vs M Ocantos |
| 0-1 | 60 | 2010 | Reykjavik Open | C45 Scotch Game |
27. M Ocantos vs B Thorfinnsson |
| 0-1 | 32 | 2010 | Reykjavik Open | B42 Sicilian, Kan |
28. M Ocantos vs H Olsen |
| ½-½ | 38 | 2010 | Reykjavik Open | C45 Scotch Game |
29. O Jonsson vs M Ocantos |
| 0-1 | 28 | 2010 | Reykjavik Open | A46 Queen's Pawn Game |
30. V Sareen vs M Ocantos |
| 1-0 | 35 | 2010 | Reykjavik Open | B71 Sicilian, Dragon, Levenfish Variation |
31. M Ocantos vs H Brynjarsson |
 | 1-0 | 41 | 2010 | Reykjavik Open | C53 Giuoco Piano |
32. A Kogan vs M Ocantos |
| 1-0 | 28 | 2010 | Reykjavik Open | B70 Sicilian, Dragon Variation |
33. M Ocantos vs W Scholzen |
| 0-1 | 45 | 2010 | Reykjavik Open | B00 Uncommon King's Pawn Opening |
34. M Ocantos vs N Delgado Ramirez |
| 0-1 | 65 | 2017 | 1st Marcel Duchamp Cup | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
35. M Ocantos vs C Dolezal |
| 0-1 | 37 | 2018 | Norberto La Porta Cup Open | C15 French, Winawer |
36. A de Dovitiis vs M Ocantos |
| 1-0 | 26 | 2018 | Norberto La Porta Cup Open | C42 Petrov Defense |
37. S Fell vs M Ocantos |
| 1-0 | 49 | 2020 | Jorge Luis Borges Memorial | B43 Sicilian, Kan, 5.Nc3 |
38. H Saldano Dayer vs M Ocantos |
| 1-0 | 41 | 2020 | Jorge Luis Borges Memorial | E00 Queen's Pawn Game |
39. M Ocantos vs M J Tempone |
| ½-½ | 15 | 2020 | Jorge Luis Borges Memorial | B14 Caro-Kann, Panov-Botvinnik Attack |
40. M Ocantos vs J M Gaitan |
| 0-1 | 53 | 2020 | Jorge Luis Borges Memorial | A16 English |
41. L Liascovich vs M Ocantos |
| 1-0 | 22 | 2020 | Jorge Luis Borges Memorial | B22 Sicilian, Alapin |
42. A E Perez Candelas vs M Ocantos |
| ½-½ | 59 | 2020 | Jorge Luis Borges Memorial | B00 Uncommon King's Pawn Opening |
43. M Ocantos vs A Cuevas |
| 0-1 | 29 | 2020 | Jorge Luis Borges Memorial | A10 English |
44. T Kapitanchuk vs M Ocantos |
| 0-1 | 43 | 2020 | Jorge Luis Borges Memorial | C41 Philidor Defense |
45. M Ocantos vs C Chiarot |
| 1-0 | 61 | 2020 | Jorge Luis Borges Memorial | A49 King's Indian, Fianchetto without c4 |
46. M Ocantos vs F Fiorito |
| ½-½ | 18 | 2022 | Vicente Lopez | B32 Sicilian |
47. M Ocantos vs R Zacarias |
| 0-1 | 31 | 2022 | Vicente Lopez | B68 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7 |
48. A Villarreal vs M Ocantos |
| 1-0 | 32 | 2022 | Vicente Lopez | E90 King's Indian |
49. M Ocantos vs P I Acosta |
| 0-1 | 42 | 2022 | Vicente Lopez | B43 Sicilian, Kan, 5.Nc3 |
50. M Ocantos vs J J Romero Barreto |
| 1-0 | 55 | 2022 | Vicente Lopez | B32 Sicilian |