Torneo North American Junior Chess Championship U20 Abs
SwissStandard
34 players participated in this 9-round tournament, held from 01 Dec 2025 to 06 Dec 2025 in MOR, Oaxtepec, Mexico. 12 titled players from 3 federations. Top 10 Elo average was 2255, and top seed was Jingyun (ryan) Yang (🇨🇦 CAN, FM, 2319).
Julian Colville (🇺🇸 USA, IM, 2301) won with 8.5/9, ahead of Donald Johnson (6.5) and Jingyun (ryan) Yang (6.5). Colville won solo starting round 5.
The biggest upset came in round 3: Emmanuel Diaz Gonzalez Jardon (1970) beat Jingyun (ryan) Yang (FM, 2319), a +349-point gap.
Location
🇲🇽MOR, Oaxtepec, Mexico
Dates
01 Dec 2025 → 06 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 12
IM×1
FM×9
CM×2
Federations · 3 represented
🇲🇽Mexico×26
🇺🇸United States of America×5
🇨🇦Canada×3
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsIM Julian Colville led from R5; +2.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
15
7
4
2
1
1
1
1
1
R5–R9 · LEAD HELD
IM Julian Colville never relinquished the lead after R5; final gap +2.0 over the runner-up.
R6 · HEAD-TO-HEAD · WINNER VS 2ND
IM Julian Colville beat FM Miguel Angel Montes Orozco (Black).
WIN STREAKS · 2 top finishers
IM Julian Colville 8 wins (R1–R8)FM Donald Johnson 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMJulian Colville | * | 1 | 1 | ½ |
| 2FMMiguel Angel Montes Orozco | 0 | * | 1 | — |
| 3FMDonald Johnson | 0 | 0 | * | ½ |
| 4FMJingyun (ryan) Yang | ½ | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Colville, JulianIM | 2301 | USA | +15N | +10B | +13N | +2N | +22B | +4N | +5B | +6B | =3N | 8.5 | 45.5 | 49.5 | 46.25 | 2631 | +56.8 |
| 2 | Johnson, DonaldFM | 2317 | USA | +19N | +9B | +5N | −1B | +7N | +6B | =3N | −4B | +16N | 6.5 | 49.0 | 53.5 | 35.25 | 2360 | +13.0 |
| 3 | Yang, Jingyun (ryan)FM | 2319 | CAN | +18B | =7N | −14B | +17N | +8B | +22N | =2B | +9N | =1B | 6.5 | 45.0 | 49.0 | 34.00 | 2303 | +2.2 |
| 4 | Montes Orozco, Miguel AngelFM | 2281 | MEX | +24N | +20B | −22N | +13B | +14N | −1B | +10B | +2N | =5B | 6.5 | 43.5 | 47.5 | 32.00 | 2286 | +7.2 |
| 5 | Venkatesh, NarayanFM | 2288 | USA | +17B | +26N | −2B | =7N | +18B | +16N | −1N | +22B | =4N | 6.0 | 45.0 | 48.5 | 27.25 | 2268 | 0.0 |
| 6 | Zacarias Rodriguez, SantiagoFM | 2264 | MEX | +23B | −14N | +8B | +11N | +16B | −2N | +22B | −1N | +9B | 6.0 | 43.5 | 47.5 | 28.00 | 2244 | +0.8 |
| 7 | Taylor Rodriguez, Juan JoseCM | 2144 | MEX | +25N | =3B | +33N | =5B | −2B | −10N | +15N | +19B | +26N | 6.0 | 40.0 | 41.0 | 23.25 | 2155 | +8.0 |
| 8 | Fogo Esquivel, Levi Kalani AlexanderFM | 2190 | MEX | +12N | =33B | −6N | +28B | −3N | +11B | −9B | +17N | +18B | 5.5 | 39.0 | 40.0 | 22.00 | 2058 | -43.6 |
| 9 | Guntaka, AayanshFM | 2144 | USA | +28B | −2N | −11B | +12B | +15N | +14B | +8N | −3B | −6N | 5.0 | 43.5 | 46.0 | 22.00 | 2082 | -19.6 |
| 10 | Chavez Dominguez, Lenin Odin | 2050 | MEX | +31B | −1N | =17B | +23N | =20B | +7B | −4N | =18N | =11B | 5.0 | 43.5 | 45.0 | 20.75 | 2036 | -1.8 |
| 11 | Carrillo Fonseca, Miguel Angel | 1898 | MEX | −22N | +25B | +9N | −6B | =13N | −8N | +27B | +14B | =10N | 5.0 | 38.0 | 40.5 | 20.25 | 2066 | +71.6 |
| 12 | Murali, Dhruv | 1773 | CAN | −8B | +29N | =18B | −9N | +25B | +20N | =19N | =26B | =21N | 5.0 | 35.5 | 38.0 | 19.00 | 1957 | +78.0 |
| 13 | Orocio Mendoza, Egbert David | 1959 | MEX | +29B | +21N | −1B | −4N | =11B | =17N | =16B | −15N | +25B | 4.5 | 41.5 | 44.0 | 17.50 | 1925 | -16.0 |
| 14 | Diaz Gonzalez Jardon, Emmanuel | 1970 | MEX | +32N | +6B | +3N | −22B | −4B | −9N | =17B | −11N | +23B | 4.5 | 41.5 | 43.0 | 20.25 | 2055 | +17.6 |
| 15 | Vazquez Pineda, Jorge Hector | 1879 | MEX | −1B | +31N | −16B | +26N | −9B | +21N | −7B | +13B | =19N | 4.5 | 41.0 | 42.5 | 16.25 | 1990 | +46.4 |
| 16 | Gonzalez Sanchez, Ilan Said | 2087 | MEX | +30N | −22B | +15N | +24B | −6N | −5B | =13N | +25B | −2B | 4.5 | 39.0 | 41.0 | 16.25 | 2034 | -18.8 |
| 17 | Campos Gorgonio, Eduardo Arturo | 1858 | MEX | −5N | +30B | =10N | −3B | +24N | =13B | =14N | −8B | +27N | 4.5 | 38.5 | 40.5 | 15.50 | 1985 | +51.2 |
| 18 | Lerma Castillo, Juan | 1946 | MEX | −3N | +34B | =12N | +33B | −5N | =23B | +24N | =10B | −8N | 4.5 | 37.0 | 37.5 | 12.50 | 1996 | +20.0 |
| 19 | Angeles Vera, Mario Alberto | 1904 | MEX | −2B | =28N | =21B | +31N | =23B | +27N | =12B | −7N | =15B | 4.5 | 35.5 | 37.0 | 14.25 | 1851 | -27.2 |
| 20 | Agama Hernandez, Luis FernandoCM | 2014 | MEX | +27B | −4N | −23B | +21N | =10N | −12B | −25N | +30B | +28N | 4.5 | 33.5 | 35.5 | 14.00 | 1830 | -78.0 |
| 21 | Barrios Cruz, Mario Antonio | 1723 | MEX | =34N | −13B | =19N | −20B | +31N | −15B | +30B | +32N | =12B | 4.5 | 28.0 | 28.5 | 10.00 | 1840 | +50.8 |
| 22 | Gonzalez Zharikov, AndreyFM | 2305 | MEX | +11B | +16N | +4B | +14N | −1N | −3B | −6N | −5N | F | 4.0 | 47.5 | 47.5 | 20.50 | 2177 | -23.4 |
| 23 | Zuniga Samano, Pablo Javier | 1851 | MEX | −6N | +32B | +20N | −10B | =19N | =18N | −26B | +24B | −14N | 4.0 | 36.5 | 38.0 | 14.50 | 1911 | +13.2 |
| 24 | De Alba Boudreau, Pablo Elliott | 1853 | MEX | −4B | +27N | +26B | −16N | −17B | +32N | −18B | −23N | +31B | 4.0 | 31.5 | 33.0 | 9.00 | 1829 | -11.2 |
| 25 | Martinez Nestor, Ian Marco | 1730 | MEX | −7B | −11N | =27B | +29N | −12N | +33B | +20B | −16N | −13N | 3.5 | 34.5 | 35.5 | 9.25 | 1763 | +5.6 |
| 26 | Tran, Tri | 2023 | CAN | F | −5B | −24N | −15B | +33N | +28B | +23N | =12N | −7B | 3.5 | 33.0 | 33.0 | 10.00 | 1850 | -69.6 |
| 27 | Estrada, Ricardoo | 1609 | MEX | −20N | −24B | =25N | +30B | +28N | −19B | −11N | F | −17B | 2.5 | 30.5 | 30.5 | 6.25 | 1696 | +28.0 |
| 28 | Jackson, Leo Daniel Olivera | 1731 | USA | −9N | =19B | F | −8N | −27B | −26N | +29B | +31N | −20B | 2.5 | 29.5 | 30.0 | 6.25 | 1738 | -9.4 |
| 29 | Dominguez Alvarez, Blas | 1571 | MEX | −13N | −12B | −30N | −25B | F | =31B | −28N | +33B | +32N | 2.5 | 21.5 | 21.5 | 3.25 | 1570 | -4.8 |
| 30 | Diaz Servin, Luis Misael | 1721 | MEX | −16B | −17N | +29B | −27N | −32B | F | −21N | −20N | +33B | 2.0 | 25.5 | 25.5 | 3.50 | 1555 | -36.8 |
| 31 | Cruz Vargas, Olin Cuautli | 1648 | MEX | −10N | −15B | +32N | −19B | −21B | =29N | F | −28B | −24N | 1.5 | 29.0 | 29.0 | 2.75 | 1535 | -48.4 |
| 32 | Munoz Padilla, Andres | 1580 | MEX | −14B | −23N | −31B | F | +30N | −24B | =33N | −21B | −29B | 1.5 | 24.0 | 24.0 | 2.50 | 1485 | -40.0 |
| 33 | Zamora Marquez, Martin | 1550 | MEX | F | =8N | −7B | −18N | −26B | −25N | =32B | −29N | −30N | 1.0 | 29.0 | 29.0 | 3.50 | 1477 | -31.6 |
| 34 | Martinez Flores, MatiasFM | 2088 | MEX | =21B | −18N | F | F | F | F | F | F | F | 0.5 | 11.5 | 11.5 | 2.25 | 1642 | -43.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Murali, DhruvCAN+78.05.0 pts · #12
- 2Carrillo Fonseca, Miguel AngelMEX+71.65.0 pts · #10
- 3Colville, JulianIMUSA+56.88.5 pts · #1
Top rating losers
- 1Agama Hernandez, Luis FernandoCMMEX-78.04.5 pts · #16
- 2Tran, TriCAN-69.63.5 pts · #26
- 3Cruz Vargas, Olin CuautliMEX-48.41.5 pts · #31
Biggest upsets
- R3+349 Elo gap
- R2+294 Elo gap
- R7+284 Elo gap