Torneo ONA Ajedrez Supremo Del Sur- Este under 1750
Open SwissStandard
11 players participated in this 5-round tournament, held from 10 Oct 2025 to 12 Oct 2025 in Patillas, Puerto Rico. Top 10 Elo average was 490, and top seed was Michael E. Orr (🇵🇷 PUR, 1720).
Michael E. Orr (🇵🇷 PUR, 1720) won with 3.5/5, ahead of Siddhant Tavhare (3.5) and Jerry Velez Vazquez (3.0). Orr won on tie-break after catching the field in the final round.
Location
🇵🇷Patillas, Puerto Rico
Dates
10 Oct 2025 → 12 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇵🇷Puerto Rico×5
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R5; 2 players tied at 3.5/5, decided on Buchholz.
Co-leaders
5
2
1
1
2
R4 · LEADER CHANGE12 Oct
Suraj Tavhare Mashere takes the sole lead (3.0/4).
R5 · TIEBREAK CLUSTER
2 players finish on 3.5/5. Orr takes the title on Buchholz Cut1 (10.5).
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Siddhant Tavhare beat Michael E. Orr (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Siddhant Tavhare | * | 1 | ½ | — |
| 2Michael E. Orr | 0 | * | ½ | — |
| 3Jerry Velez Vazquez | ½ | ½ | * | 0 |
| 4Suraj Tavhare Mashere | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Orr, Michael E. | 1720 | PUR | +9B | =3N | +6B | −2N | +5B | 3.5 | 10.5 | 11.5 | 6.50 | 1397 | -33.6 |
| 2 | Tavhare, Siddhant | 1660 | PUR | +11N | F | =3B | +1B | +7N | 3.5 | 8.5 | 8.5 | 7.00 | 1813 | +15.6 |
| 3 | Velez Vazquez, Jerry | 1519 | PUR | +10N | =1B | =2N | −4B | +8N | 3.0 | 11.5 | 11.5 | 5.00 | 1691 | +18.0 |
| 4 | Tavhare Mashere, Suraj | 0 | PUR | −5N | +11B | +10N | +3N | −6B | 3.0 | 7.0 | 7.0 | 3.00 | 1539 | 0.0 |
| 5 | FIDE 3119009 | 0 | — | +4B | −6N | +8B | F | −1N | 2.0 | 10.5 | 12.0 | 4.50 | 920 | 0.0 |
| 6 | FIDE 3119327 | 0 | — | F | +5B | −1N | F | +4N | 2.0 | 8.5 | 8.5 | 5.00 | 920 | 0.0 |
| 7 | Blanco Segarra, Victor | 0 | PUR | −?N | +10B | +?N | F | −2B | 2.0 | 5.5 | 5.5 | 0.00 | 825 | 0.0 |
| 8 | FIDE 3119238 | 0 | — | F | =?B | −5N | +9N | −3B | 1.5 | 6.0 | 6.0 | 1.00 | 719 | 0.0 |
| 9 | FIDE 3118347 | 0 | — | −1N | F | F | −8B | +11B | 1.0 | 5.0 | 5.0 | 0.00 | 920 | 0.0 |
| 10 | FIDE 3118398 | 0 | — | −3B | −7N | −4B | F | −?N | 0.0 | 8.0 | 8.0 | 0.00 | 719 | 0.0 |
| 11 | FIDE 3119343 | 0 | — | −2B | −4N | F | −?B | −9N | 0.0 | 7.5 | 7.5 | 0.00 | 861 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Velez Vazquez, JerryPUR+18.03.0 pts · #2
- 2Tavhare, SiddhantPUR+15.63.5 pts · #1
- 3Blanco Segarra, VictorPUR0.02.0 pts · #7
Top rating losers
- 1Orr, Michael E.PUR-33.63.5 pts · #4
- 2Blanco Segarra, VictorPUR0.02.0 pts · #7
- 3Tavhare Mashere, SurajPUR0.03.0 pts · #3