Orlando Andres Leon Archibaldo vs Ruben Abraham Ulloa Castillo
Orlando Andres Leon Archibaldo (34, FM, PAN) and Ruben Abraham Ulloa Castillo (31, CM, PAN) have met 19 times in classical OTB. Ulloa Castillo leads with 9 wins to 7, with 3 draws — a 16% draw rate. Their last meeting at Campeonato Nacional Blitz 2025 - Absoluto saw Leon Archibaldo prevail. With current classical ratings of 2186 and 2176, the Elo model gives Leon Archibaldo a 45% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2186 vs 2176 (Δ +10)
With Orlando Andres Leon Archibaldo as white
45% Orlando24% draw32% Ruben
With Ruben Abraham Ulloa Castillo as white
34% Orlando25% draw41% Ruben
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Orlando Andres Leon Archibaldo | Ruben Abraham Ulloa Castillo | |
|---|---|---|
| Current rating (STD) | 2186 | 2176 |
| Peak rating | 2254 · Dec 2019 | 2238 · Apr 2018 |
| Peak age | 27 | 23 |
| World rank now | #8,926 | #9,512 |
| World rank peak | #6,698 | #7,754 |
| Federation rank now | #4 | #6 |
| Games (career, STD) | 604 | 489 |
| Months active | 170 | 165 |
| % white wins | 59% | 57% |
| % black wins | 61% | 51% |
| TPR last 12m (STD) | 2153 | 2174 |
| Activity 12m (games) | 61 | 53 |
Best Win
Orlando Andres Leon Archibaldo
Ruben Abraham Ulloa Castillo
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (37)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Orlando Andres Leon Archibaldo
Ruben Abraham Ulloa Castillo