Sebastian Alessandro Cortez Requena vs Gian Marcos Valencia Marin
Sebastian Alessandro Cortez Requena (17, PER) and Gian Marcos Valencia Marin (15, PER) have never met in classical OTB, but played 9 rapid/blitz games on record. They share 11 common opponents with at least 3 games each side, providing a calibration of relative strength. With current classical ratings of 1475 and 1626, the Elo model gives Valencia Marin a 59% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 1475 vs 1626 (Δ -151)
With Sebastian Alessandro Cortez Requena as white
27% Sebastian14% draw59% Gian
With Gian Marcos Valencia Marin as white
20% Sebastian12% draw69% Gian
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Sebastian Alessandro Cortez Requena | Gian Marcos Valencia Marin | |
|---|---|---|
| Current rating (STD) | 1475 | 1626 |
| Peak rating | 1475 · Mar 2024 | 1626 · Apr 2026 |
| Peak age | 15 | 15 |
| World rank now | #142,359 | #136,557 |
| World rank peak | #127,926 | #136,557 |
| Federation rank now | #661 | #731 |
| Games (career, STD) | 35 | 23 |
| Months active | 81 | 15 |
| % white wins | 45% | 56% |
| % black wins | 46% | 51% |
| TPR last 12m (STD) | — | 1249 |
| Activity 12m (games) | 20 | 46 |
Best Win
Sebastian Alessandro Cortez Requena
Gian Marcos Valencia Marin
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (9)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Sebastian Alessandro Cortez Requena
Gian Marcos Valencia Marin