Patrick Emilio Aizpurua vs Ruben Abraham Ulloa Castillo
Patrick Emilio Aizpurua (32, FM, PAN) and Ruben Abraham Ulloa Castillo (31, CM, PAN) have met 11 times in classical OTB. Aizpurua leads with 6 wins to 1, with 4 draws — a 36% draw rate. Their last meeting at Gran Final, Campeonato Nacional Absoluto 2020 drew. With current classical ratings of 2313 and 2176, the Elo model gives Aizpurua a 64% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2313 vs 2176 (Δ +137)
With Patrick Emilio Aizpurua as white
64% Patrick18% draw18% Ruben
With Ruben Abraham Ulloa Castillo as white
54% Patrick21% draw25% Ruben
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Patrick Emilio Aizpurua | Ruben Abraham Ulloa Castillo | |
|---|---|---|
| Current rating (STD) | 2313 | 2176 |
| Peak rating | 2348 · Jan 2020 | 2238 · Apr 2018 |
| Peak age | 26 | 23 |
| World rank now | #3,645 | #9,512 |
| World rank peak | #3,354 | #7,754 |
| Federation rank now | #2 | #6 |
| Games (career, STD) | 478 | 489 |
| Months active | 173 | 165 |
| % white wins | 60% | 57% |
| % black wins | 58% | 51% |
| TPR last 12m (STD) | — | 2174 |
| Activity 12m (games) | 0 | 53 |
Best Win
Patrick Emilio Aizpurua
Ruben Abraham Ulloa Castillo
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (20)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Patrick Emilio Aizpurua
Ruben Abraham Ulloa Castillo