IRT Sub 1900 Clasico Preparando el Suramericano 2025

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51 players participated in this 6-round tournament, held from 07 Nov 2025 to 10 Nov 2025 in Bucaramanga - SAN, Colombia. Top 10 Elo average was 1814, and top seed was Greidy Jhoner Sanchez Ortiz (🇨🇴 COL, 1894).

Benjamin Marquez (🇨🇴 COL, 1886) won with 5.5/6, ahead of Angel David Berdugo Santoya (5.0) and Santiago Sanabria Calderon (5.0). Marquez won solo starting round 5.

The biggest upset came in round 4: Silvia Nathalia Hernandez Sandoval (1581) beat Greidy Jhoner Sanchez Ortiz (1894), a +313-point gap.

Location

🇨🇴Bucaramanga - SAN, Colombia

Dates

07 Nov 2025 → 10 Nov 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 6 rounds

Top seed

🇨🇴Greidy Jhoner Sanchez Ortiz1894

Avg top 10

1,814

Participants

Federations · 1 represented

🇨🇴Colombia×41

Top 3

🥇
Benjamin Marquez
🇨🇴COL·1886
5.5pts·2071perf+17.0
🥈
Angel David Berdugo Santoya
🇨🇴COL·1638
5.0pts·1963perf+66.8
🥉
Santiago Sanabria Calderon
🇨🇴COL·1866
5.0pts·1913perf+12.0

How it unfolded

Top 6 · 6 rounds

Benjamin Marquez led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Marquez5.5Ortega Rueda5Sanabria Calderon5Berdugo Santoya5Rojas Montaguth4.5Alvarado Santos4

R5–R6 · LEAD HELD

Benjamin Marquez held the sole lead from R5 through R6 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Benjamin Marquez beat Nicolas Ortega Rueda (Black).

WIN STREAKS · 3 top finishers

Benjamin Marquez 5 wins (R1–R5)Nicolas Ortega Rueda 4 wins (R1–R4)Santiago Sanabria Calderon 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Benjamin Marquez	*	1	—	—
2Nicolas Ortega Rueda	0	*	—	1
3Santiago Sanabria Calderon	—	—	*	0
4Angel David Berdugo Santoya	—	0	1	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Marquez, Benjamin	1886	COL	+20N	+7B	+14N	+19B	+4N	=5B	5.5	19.5	22.5	20.25	2071	+17.0
2	Berdugo Santoya, Angel David	1638	COL	+42N	+35B	+3N	−4N	+6B	+28B	5.0	18.5	20.0	15.00	1963	+66.8
3	Sanabria Calderon, Santiago	1866	COL	+22B	+11N	−2B	+15N	+14B	+9N	5.0	18.0	21.0	16.00	1913	+12.0
4	Ortega Rueda, Nicolas	1777	COL	+37N	+17B	+31N	+2B	−1B	+39N	5.0	17.5	19.5	14.00	1882	+25.6
5	Rojas Montaguth, Juan Angel	1598	COL	+44B	+6N	F	+16B	+10N	=1N	4.5	17.0	17.0	14.25	2104	+93.6
6	Rico Hernandez, Edgar	1851	COL	+21N	−5B	+20N	+31B	−2N	+10B	4.0	19.0	21.0	11.50	1597	-24.4
7	Camacho Casalinas, Said Gabriel	1625	COL	+38B	−1N	+45B	+23N	−9B	+15N	4.0	17.0	18.0	9.00	1700	+14.8
8	Alvarado Santos, Juan Carlos	0	COL	−17N	+37B	−43N	+50B	+31N	+33B	4.0	10.0	10.0	6.00	1571	0.0
9	Cardenas Angarita, Juan Pablo	1815	COL	+34B	F	=28N	+21B	+7N	−3B	3.5	16.5	16.5	10.25	1691	-9.4
10	Carreno Poveda, Esteban David	1678	COL	+45B	=40N	+32B	+33N	−5B	−6N	3.5	14.5	15.5	6.00	1646	-6.8
11	Maldonado, Marcos Felipe	1547	COL	+46N	−3B	=29N	+42B	−16N	+34B	3.5	14.0	15.0	5.75	962	-19.2
12	Santos Caballero, Edna Liliana	1701	COL	+48N	−31B	−21N	+38B	+22N	=30B	3.5	12.5	13.5	7.25	672	-15.8
13	Rios Dussan, Andres Ramiro	1446	COL	−18N	=42B	+50N	−39B	+48N	+31B	3.5	9.5	9.5	3.75	1639	+36.0
14	Correa Quintero, Juan Sebastian	1755	COL	+30B	+23N	−1B	+43N	−3N	−24B	3.0	19.0	20.0	6.50	1695	-10.8
15	Centeno Oviedo, Leonhard Andrey	1607	COL	+29N	−18B	+47N	−3B	+40N	−7B	3.0	16.5	17.5	5.50	995	-32.8
16	Torres Martinez, Francisco Jose	1657	COL	F	+24N	+40B	−5N	+11B	−26B	3.0	16.0	16.0	8.50	1532	-20.4
17	Angarita Santos, Luis Carlos	1551	COL	+8B	−4N	F	+34B	−26N	+32B	3.0	16.0	16.0	8.00	1580	+1.2
18	Sanchez Ortiz, Greidy Jhoner	1894	COL	+13B	+15N	−19B	−28N	+32B	−27N	3.0	15.0	17.0	8.50	1595	-82.0
19	Silva Barajas, Jose Alejandro	1764	COL	+25N	+43B	+18N	−1N	F	F	3.0	15.0	15.0	7.00	1896	+22.4
20	Burgos Dominguez, Gerardo Alonso	0	COL	−1B	+44N	−6B	+36N	−?B	+38N	3.0	14.5	14.5	5.00	1035	0.0
21	Nino, Bladymir	0	COL	−6B	+?N	+12B	−9N	−27B	+50N	3.0	14.0	14.0	3.50	1638	0.0
22	FIDE 144448864	0	—	−3N	−29B	+?N	+47B	−12B	+36N	3.0	14.0	14.0	3.00	983	0.0
23	Mendez Zuluaga, Jeronimo	1493	COL	+51N	−14B	+35N	−7B	−24N	+47B	3.0	13.0	13.0	3.00	890	-20.0
24	Serrano Murillo, Maria Tatiana	0	COL	−31N	−16B	F	+45N	+23B	+14N	3.0	12.0	12.0	7.00	1595	0.0
25	Guarin Rondon, Andres Santiago	0	COL	−19B	+36N	+27B	−26N	+43B	−?N	3.0	12.0	12.0	6.00	1629	0.0
26	Moreno Hernandez, Andres Mauricio	1827	COL	F	F	−33N	+25B	+17B	+16N	3.0	11.0	11.0	9.00	1736	-12.4
27	Lizcano Bautista, Brayan Yesid	1614	COL	F	F	−25N	+44B	+21N	+18B	3.0	10.0	10.0	7.00	2694	+33.6
28	Hernandez Sandoval, Silvia Nathalia	1581	COL	F	+41N	=9B	+18B	F	−2N	2.5	16.5	16.5	6.75	1783	+14.6
29	Diaz Jimenez, Ian Josue	0	COL	−15B	+22N	=11B	−32N	F	+42N	2.5	13.0	13.0	6.25	1281	0.0
30	Manrique Mejia, Jozy Zahid	0	COL	−14N	+46B	−?N	+35B	F	=12N	2.5	9.5	9.5	4.75	1468	0.0
31	Ortiz Contreras, Samuel	1472	COL	+24B	+12N	−4B	−6N	−8B	−13N	2.0	20.0	23.0	6.50	1502	+1.2
32	Carreno Poveda, Noah David	1509	COL	+36B	F	−10N	+29B	−18N	−17N	2.0	14.0	14.0	4.50	908	-32.4
33	Gonzalez Suarez, Nelson	1626	COL	F	+49N	+26B	−10B	−39N	−8N	2.0	13.5	13.5	4.00	1598	-2.4
34	Rincon Vanegas, Yenny Katherine	0	COL	−9N	F	+41B	−17N	+42B	−11N	2.0	13.5	13.5	3.50	838	0.0
35	FIDE 144472978	0	—	+?B	−2N	−23B	−30N	−41B	+45N	2.0	13.5	13.5	1.00	766	0.0
36	FIDE 144472986	0	—	−32N	−25B	+37N	−20B	+44N	−22B	2.0	13.0	14.0	3.00	708	0.0
37	Aranguren Romero, Victoria Alejandra	0	COL	−4B	−8N	−36B	+41N	−?B	+51N	2.0	13.0	13.0	2.00	981	0.0
38	FIDE 144459874	0	—	−7N	−?B	+46N	−12N	+51B	−20B	2.0	11.5	11.5	1.00	897	0.0
39	Galvis Gomez, Jaime	1664	COL	F	F	F	+13N	+33B	−4B	2.0	10.5	10.5	5.50	1743	+13.2
40	Castellanos Arias, Steven Jair	0	COL	+?N	=10B	−16N	=?B	−15B	F	2.0	10.5	10.5	1.75	1574	0.0
41	Capacho Nunez, Fabio Daniel	0	COL	F	−28B	−34N	−37B	+35N	+48B	2.0	9.5	9.5	3.00	781	0.0
42	Ortiz Rueda, Saul Alejandro	0	COL	−2B	=13N	+49B	−11N	−34N	−29B	1.5	16.5	17.5	2.75	1271	0.0
43	Rueda Hernandez, Gibran Camilo	1533	COL	F	−19N	+8B	−14B	−25N	F	1.0	15.0	15.0	4.00	960	-17.2
44	FIDE 144433174	0	—	−5N	−20B	+51N	−27N	−36B	−46B	1.0	13.5	13.5	0.00	806	0.0
45	FIDE 144468008	0	—	−10N	+51B	−7N	−24B	−47N	−35B	1.0	13.5	13.5	0.00	851	0.0
46	FIDE 144472960	0	—	−11B	−30N	−38B	−?B	−49N	+44N	1.0	10.0	10.0	1.00	747	0.0
47	FIDE 144472951	0	—	F	F	−15B	−22N	+45B	−23N	1.0	10.0	10.0	1.00	750	0.0
48	Morales Burgos, Caleb Santiago	0	COL	−12B	F	−?N	+49N	−13B	−41N	1.0	10.0	10.0	1.00	755	0.0
49	FIDE 144448414	0	—	F	−33B	−42N	−48B	+46B	−?N	1.0	5.5	5.5	1.00	826	0.0
50	Osma Abaunza, Maria Antonia	1571	COL	F	F	−13B	−8N	F	−21B	0.0	13.0	13.0	0.00	647	-26.8
51	FIDE 144472994	0	—	−23B	−45N	−44B	F	−38N	−37B	0.0	9.0	9.0	0.00	693	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Rojas Montaguth, Juan AngelCOL
+93.6
4.5 pts · #4
2Berdugo Santoya, Angel DavidCOL
+66.8
5.0 pts · #6
3Rios Dussan, Andres RamiroCOL
+36.0
3.5 pts · #18

Top rating losers

1Sanchez Ortiz, Greidy JhonerCOL
-82.0
3.0 pts · #5
2Centeno Oviedo, Leonhard AndreyCOL
-32.8
3.0 pts · #40
3Carreno Poveda, Noah DavidCOL
-32.4
2.0 pts · #42

Biggest upsets

R4+313 Elo gap
Hernandez Sandoval, Silvia Nathalia1581 beat Sanchez Ortiz, Greidy Jhoner1894
R6+280 Elo gap
Lizcano Bautista, Brayan Yesid1614 beat Sanchez Ortiz, Greidy Jhoner1894
R2+253 Elo gap
Rojas Montaguth, Juan Angel1598 beat Rico Hernandez, Edgar1851