Joao Antonio Bertolu Mariot Vaz vs Cesar Oliveira Orsini
Joao Antonio Bertolu Mariot Vaz (22, BRA) and Cesar Oliveira Orsini (16, BRA) have met 5 times in classical OTB plus 6 rapid/blitz games. Mariot Vaz leads the classical series 4–0 (1 draw). With current classical ratings of 1984 and 1842, the Elo model gives Mariot Vaz a 66% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 1984 vs 1842 (Δ +142)
With Joao Antonio Bertolu Mariot Vaz as white
66% Joao15% draw19% Cesar
With Cesar Oliveira Orsini as white
56% Joao18% draw26% Cesar
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Joao Antonio Bertolu Mariot Vaz | Cesar Oliveira Orsini | |
|---|---|---|
| Current rating (STD) | 1984 | 1842 |
| Peak rating | 2027 · Oct 2025 | 1882 · Mar 2026 |
| Peak age | 21 | 16 |
| World rank now | #30,115 | #63,638 |
| World rank peak | #22,992 | #53,835 |
| Federation rank now | #352 | #953 |
| Games (career, STD) | 330 | 191 |
| Months active | 116 | 41 |
| % white wins | 53% | 43% |
| % black wins | 45% | 40% |
| TPR last 12m (STD) | 1953 | 1769 |
| Activity 12m (games) | 132 | 129 |
Best Win
Joao Antonio Bertolu Mariot Vaz
Cesar Oliveira Orsini
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (11)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Joao Antonio Bertolu Mariot Vaz
Cesar Oliveira Orsini