IRT Sub 1800 Ciudad de San Luis 2025
Open SwissStandard
11 players participated in this 5-round tournament, held on 05 Oct 2025 in San Luis - San Luis, Argentina. Top 10 Elo average was 1130, and top seed was Jeremias Savanco Trento (🇦🇷 ARG, 1796).
Luis Alberto Costa (🇦🇷 ARG, 0) won with 4.0/5, ahead of Jeremias Savanco Trento (4.0) and Santiago Agustin Paiz Rivero (3.5). Costa shared the lead from round 2, winning on tie-break.
Location
🇦🇷San Luis - San Luis, Argentina
Dates
05 Oct 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇦🇷Argentina×11
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R3; 2 players tied at 4.0/5, decided on Buchholz.
Co-leaders
4
2
1
1
2
R3–R5 · LEAD HELD
Luis Alberto Costa held the sole lead from R3 through R5 without losing it.
R5 · TIEBREAK CLUSTER
2 players finish on 4.0/5. Costa takes the title on Buchholz Cut1 (13.5).
R2 · HEAD-TO-HEAD · WINNER VS 2ND
Luis Alberto Costa beat Jeremias Savanco Trento (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Luis Alberto Costa | * | 1 | ½ | 1 |
| 2Jeremias Savanco Trento | 0 | * | — | 1 |
| 3Santiago Agustin Paiz Rivero | ½ | — | * | 0 |
| 4Axel Ryban | 0 | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Costa, Luis Alberto | 0 | ARG | +5N | +2B | +4B | =3N | =6N | 4.0 | 13.5 | 16.5 | 13.25 | 1730 | 0.0 |
| 2 | Savanco Trento, Jeremias | 1796 | ARG | +8B | −1N | +10B | +4N | +5B | 4.0 | 11.5 | 11.5 | 7.50 | 2420 | +33.6 |
| 3 | Paiz Rivero, Santiago Agustin | 1533 | ARG | +11B | −4N | +7B | =1B | +10N | 3.5 | 9.0 | 9.0 | 4.00 | 901 | -11.2 |
| 4 | Ryban, Axel | 1700 | ARG | +9N | +3B | −1N | −2B | +7N | 3.0 | 13.5 | 14.5 | 6.50 | 1720 | +4.4 |
| 5 | Paz, Maximiliano | 1670 | ARG | −1B | +6N | +9B | +10N | −2N | 3.0 | 12.0 | 12.0 | 4.00 | 1760 | +14.8 |
| 6 | Gatica, Alejandro | 1650 | ARG | =7N | −5B | +8N | +9N | =1B | 3.0 | 10.5 | 11.5 | 5.50 | 1664 | +2.8 |
| 7 | Rivitti, Gael Mateo | 0 | ARG | =6B | =8N | −3N | +11B | −4B | 2.0 | 11.0 | 11.0 | 2.25 | 1400 | 0.0 |
| 8 | Valverde, Valentina Emma | 1493 | ARG | −2N | =7B | −6B | F | +11N | 1.5 | 9.0 | 9.0 | 1.00 | 923 | -17.2 |
| 9 | Valverde, Melina | 1459 | ARG | −4B | +11N | −5N | −6B | F | 1.0 | 9.0 | 9.0 | 0.00 | 874 | -27.2 |
| 10 | Sosa Mattioli, Santino Nicolas | 0 | ARG | F | F | −2N | −5B | −3B | 0.0 | 10.5 | 10.5 | 0.00 | 866 | 0.0 |
| 11 | Sandaza, Emma | 0 | ARG | −3N | −9B | F | −7N | −8B | 0.0 | 8.0 | 8.0 | 0.00 | 693 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Savanco Trento, JeremiasARG+33.64.0 pts · #2
- 2Paz, MaximilianoARG+14.83.0 pts · #5
- 3Ryban, AxelARG+4.43.0 pts · #3
Top rating losers
- 1Valverde, MelinaARG-27.21.0 pts · #9
- 2Valverde, Valentina EmmaARG-17.21.5 pts · #11
- 3Paiz Rivero, Santiago AgustinARG-11.23.5 pts · #7