Juan Bosco Ruiz vs Ian Eiffel Castillo Sevilla
Juan Bosco Ruiz (NCA) and Ian Eiffel Castillo Sevilla (24, CM, NCA) have never met in classical OTB, but played 9 rapid/blitz games on record. They share 25 common opponents with at least 3 games each side, providing a calibration of relative strength. With current classical ratings of 1970 and 2110, the Elo model gives Castillo Sevilla a 55% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 1970 vs 2110 (Δ -140)
With Juan Bosco Ruiz as white
26% Juan19% draw55% Ian
With Ian Eiffel Castillo Sevilla as white
19% Juan16% draw65% Ian
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Juan Bosco Ruiz | Ian Eiffel Castillo Sevilla | |
|---|---|---|
| Current rating (STD) | 1970 | 2110 |
| Peak rating | 2098 · Jan 2007 | 2110 · Jan 2026 |
| Peak age | — | 24 |
| World rank now | #32,687 | #14,470 |
| World rank peak | #16,919 | #14,403 |
| Federation rank now | #25 | #9 |
| Games (career, STD) | 334 | 254 |
| Months active | 193 | 136 |
| % white wins | 49% | 53% |
| % black wins | 33% | 56% |
| TPR last 12m (STD) | 1926 | 1966 |
| Activity 12m (games) | 40 | 8 |
Best Win
Juan Bosco Ruiz
Ian Eiffel Castillo Sevilla
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).
Juan Bosco Ruiz
Ian Eiffel Castillo Sevilla