| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 451. J F Benito Colmenares vs J E Ostos |
| ½-½ | 10 | 2018 | Venezuelan Championship 2017 | C01 French, Exchange |
| 452. J E Ostos vs P A Ruiz Aguilar |
| 1-0 | 21 | 2018 | San Cristobal ITT | B43 Sicilian, Kan, 5.Nc3 |
| 453. I Vidal vs J E Ostos |
| 1-0 | 35 | 2018 | San Cristobal ITT | A56 Benoni Defense |
| 454. J E Ostos vs I Rivera |
| 1-0 | 29 | 2018 | San Cristobal ITT | B94 Sicilian, Najdorf |
| 455. A Gamboa Gonzalez vs J E Ostos |
| 0-1 | 44 | 2018 | San Cristobal ITT | A16 English |
| 456. J E Ostos vs E Valderrama Quiceno |
| ½-½ | 16 | 2018 | San Cristobal ITT | B06 Robatsch |
| 457. R J Brizuela Abreu vs J E Ostos |
| 1-0 | 48 | 2018 | San Cristobal ITT | A56 Benoni Defense |
| 458. J E Ostos vs O Zavarce |
| ½-½ | 30 | 2018 | San Cristobal ITT | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 459. J E Ostos vs J A Martinez |
| 1-0 | 47 | 2018 | San Cristobal ITT | B42 Sicilian, Kan |
| 460. R Diaz Leon vs J E Ostos |
| ½-½ | 6 | 2018 | San Cristobal ITT | A05 Reti Opening |
| 461. G Valderrama Espinosa vs J E Ostos |
| 0-1 | 40 | 2018 | San Pedro del Rio FVA Cup | A46 Queen's Pawn Game |
| 462. J E Ostos vs S F Sanchez |
| ½-½ | 35 | 2018 | San Pedro del Rio FVA Cup | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 463. K A Sanchez Alvarez vs J E Ostos |
| 0-1 | 65 | 2018 | San Pedro del Rio FVA Cup | C05 French, Tarrasch |
| 464. J E Ostos vs R J Brizuela Abreu |
| 0-1 | 55 | 2018 | San Pedro del Rio FVA Cup | C04 French, Tarrasch, Guimard Main line |
| 465. O Zavarce vs J E Ostos |
| ½-½ | 76 | 2018 | San Pedro del Rio FVA Cup | E60 King's Indian Defense |
| 466. J E Ostos vs J J Romero Barreto |
| ½-½ | 12 | 2018 | San Pedro del Rio FVA Cup | C49 Four Knights |
| 467. P A Ruiz Aguilar vs J E Ostos |
| ½-½ | 13 | 2018 | San Pedro del Rio FVA Cup | C05 French, Tarrasch |
| 468. J E Ostos vs F E Vivas Zamora |
| ½-½ | 43 | 2018 | San Pedro del Rio FVA Cup | B94 Sicilian, Najdorf |
| 469. R Diaz Leon vs J E Ostos |
| ½-½ | 10 | 2018 | San Pedro del Rio FVA Cup | A56 Benoni Defense |
| 470. A Marichal Gonzalez vs J E Ostos |
| 0-1 | 35 | 2018 | Porlamar Margarita | A56 Benoni Defense |
| 471. J E Ostos vs R Diaz Leon |
| ½-½ | 10 | 2018 | Porlamar Margarita | C46 Three Knights |
| 472. G Valderrama Espinosa vs J E Ostos |
| ½-½ | 42 | 2018 | Porlamar Margarita | C01 French, Exchange |
| 473. V Descarrega Zacarias vs J E Ostos |
| 0-1 | 36 | 2018 | Porlamar Margarita | C05 French, Tarrasch |
| 474. J E Ostos vs R M Espinosa Escala |
| 0-1 | 45 | 2018 | Porlamar Margarita | C46 Three Knights |
| 475. H Gomez Perez vs J E Ostos |
| 0-1 | 21 | 2018 | Porlamar Margarita | C01 French, Exchange |
Kibitzing
