23rd ASEAN AGE GROUP CHESS CHAMPIONSHIP 2025 (SENIORS S50_W50_S65 Open)
SwissStandard
30 players participated in this 9-round tournament, held from 01 Jul 2025 to 11 Jul 2025 in George Town, Penang, Malaysia. 15 titled players from 8 federations. Top 10 Elo average was 2250, and top seed was Hoang Thong Tu (🇻🇳 VIE, GM, 2364).
Hoang Thong Tu (🇻🇳 VIE, GM, 2364) won with 7.0/9, ahead of Sang Cao (6.5) and Angelo Young (6.5). Tu won solo starting round 5.
The biggest upset came in round 4: Kok Onn Osric Mooi (1693) beat Seng Sun Quah (1986), a +293-point gap.
Location
🇲🇾George Town, Penang, Malaysia
Dates
01 Jul 2025 → 11 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 15
GM×4
IM×7
FM×4
Federations · 8 represented
🇲🇾Malaysia×7
🇵ðŸ‡Philippines×5
🇸🇬Singapore×4
🇮🇩Indonesia×2
FIDE (no federation)×2
🇻🇳Vietnam×2
🇮🇳India×1
🇺🇸United States of America×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsGM Hoang Thong Tu led from R3; +0.5-point edge over the runner-up.
Co-leaders
13
6
1
2
1
1
1
1
1
R3–R9 · LEAD HELD
GM Hoang Thong Tu held the sole lead from R3 through R9 without losing it.
R7 · HEAD-TO-HEAD · WINNER VS 2ND
GM Hoang Thong Tu drew with GM Sang Cao (Black).
R1–R3 · WIN STREAK
GM Hoang Thong Tu won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1GMHoang Thong Tu | * | ½ | ½ | 1 |
| 2GMSang Cao | ½ | * | ½ | ½ |
| 3GMRogelio Jr Antonio | ½ | ½ | * | ½ |
| 4IMAngelo Young | 0 | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Tu, Hoang ThongGM | 2364 | VIE | +26N | +10B | +8N | =4B | +3N | =5B | =2N | +9B | =7N | 7.0 | 46.0 | 49.5 | 37.25 | 2376 | +3.5 |
| 2 | Cao, SangGM | 2339 | VIE | +19N | +9B | =5N | =6B | =4N | =3B | =1B | +11N | +12B | 6.5 | 45.5 | 49.5 | 33.75 | 2366 | +4.8 |
| 3 | Young, AngeloIM | 2151 | PHI | +28N | +6B | =4N | +5B | −1B | =2N | =8B | +14N | +13B | 6.5 | 45.5 | 47.5 | 31.50 | 2338 | +23.9 |
| 4 | Antonio, Rogelio JrGM | 2354 | PHI | +15B | +12N | =3B | =1N | =2B | =11N | +7B | =6N | +8B | 6.5 | 45.0 | 49.5 | 34.50 | 2360 | +2.8 |
| 5 | Mascarinas, RicoIM | 2246 | PHI | +20B | +14N | =2B | −3N | +13B | =1N | +11B | =8N | =6B | 6.0 | 44.0 | 48.0 | 29.50 | 2280 | +6.2 |
| 6 | Raetsky, AlexanderGM | 2307 | FID | +21B | −3N | +14B | =2N | =12B | =9N | +16B | =4B | =5N | 5.5 | 44.0 | 48.0 | 27.25 | 2186 | -9.9 |
| 7 | Bagamasbad, EfrenIM | 1976 | PHI | +30B | −8N | +20B | −13N | +19B | +12N | −4N | +10B | =1B | 5.5 | 40.5 | 41.0 | 21.50 | 2162 | +35.8 |
| 8 | Lioe, DedeIM | 2251 | INA | +18N | +7B | −1B | =10N | =11N | +21B | =3N | =5B | −4N | 5.0 | 45.5 | 49.5 | 25.00 | 2163 | -8.2 |
| 9 | Gatus, Edmundo | 2036 | PHI | +29B | −2N | +21B | =12N | =10B | =6B | +13N | −1N | =11B | 5.0 | 41.5 | 42.5 | 19.25 | 2172 | +26.4 |
| 10 | Chan, Peng KongIM | 2087 | SGP | +23B | −1N | +19B | =8B | =9N | =16N | =14B | −7N | +22B | 5.0 | 39.5 | 43.5 | 21.50 | 2044 | -3.2 |
| 11 | Altan-Och, GendenFM | 2198 | MGL | =27B | =22N | +15B | +16N | =8B | =4B | −5N | −2B | =9N | 4.5 | 42.0 | 45.5 | 21.00 | 2063 | -25.0 |
| 12 | Gunawan, RonnyIM | 2204 | INA | +17N | −4B | +26N | =9B | =6N | −7B | =21N | +16B | −2N | 4.5 | 42.0 | 45.5 | 19.75 | 2017 | -17.2 |
| 13 | Liew, Chee-Meng JimmyIM | 2070 | MAS | =25N | =16B | =18N | +7B | −5N | +17B | −9B | +19N | −3N | 4.5 | 40.5 | 44.5 | 20.50 | 1925 | -13.0 |
| 14 | Ismail, AhmadFM | 1872 | MAS | +24N | −5B | −6N | +18B | =17N | +20B | =10N | −3B | =15N | 4.5 | 40.5 | 44.5 | 19.50 | 1941 | +9.2 |
| 15 | Choo, Tong Neo | 1841 | SGP | −4N | +17B | −11N | +28B | −21N | =23B | =20N | +25N | =14B | 4.5 | 36.0 | 38.0 | 16.75 | 1803 | -20.4 |
| 16 | Li, Jackson | 0 | HKG | +22B | =13N | =27B | −11B | +24N | =10B | −6N | −12N | +30B | 4.5 | 35.5 | 36.0 | 15.00 | 1972 | 0.0 |
| 17 | Mooi, Kok Onn Osric | 1693 | SGP | −12B | −15N | +29B | +22N | =14B | −13N | =27B | +20N | =19B | 4.5 | 33.5 | 34.5 | 15.00 | 1851 | +27.8 |
| 18 | Eggers, Paul S | 1793 | USA | −8B | +30N | =13B | −14N | −20B | =19N | +28B | =23N | +27B | 4.5 | 31.5 | 32.0 | 12.25 | 1773 | -7.0 |
| 19 | Gibbons, RobertFM | 1834 | NZL | −2B | +29N | −10N | +25B | −7N | =18B | +26N | −13B | =17N | 4.0 | 38.0 | 39.0 | 13.00 | 1816 | -7.4 |
| 20 | Hoh, Chee Chuen Steven | 1790 | MAS | −5N | +24B | −7N | =23B | +18N | −14N | =15B | −17B | +26N | 4.0 | 37.5 | 41.0 | 16.25 | 1759 | -20.4 |
| 21 | Kanda, Daigo | 1809 | JPN | −6N | +28B | −9N | +26B | +15B | −8N | =12B | −22N | =23B | 4.0 | 36.0 | 38.0 | 14.25 | 1895 | +14.8 |
| 22 | Quah, Seng Sun | 1986 | MAS | −16N | =11B | =25N | −17B | =28N | +24B | =23N | +21B | −10N | 4.0 | 34.5 | 36.5 | 15.25 | 1742 | -77.2 |
| 23 | Wong, Chin Yee | 1551 | MAS | −10N | −26B | =24N | =20N | +30B | =15N | =22B | =18B | =21N | 4.0 | 33.5 | 34.0 | 13.00 | 1753 | +58.0 |
| 24 | Tan, Eng Lee | 0 | MAS | −14B | −20N | =23B | +30N | −16B | −22N | +29B | =27N | +28B | 4.0 | 27.5 | 28.0 | 7.25 | 1611 | 0.0 |
| 25 | Sundararajan Gopalan | 1517 | IND | =13B | −27N | =22B | −19N | −26N | +28B | +30N | −15B | +29N | 4.0 | 27.0 | 27.5 | 7.75 | 1639 | +27.6 |
| 26 | Abdul Rahman, Hamzah | 1851 | MAS | −1B | +23N | −12B | −21N | +25B | =27N | −19B | +30N | −20B | 3.5 | 35.0 | 35.5 | 10.25 | 1687 | -72.8 |
| 27 | Leong, IgnatiusFM | 1666 | FID | =11N | +25B | =16N | F | F | =26B | =17N | =24B | −18N | 3.5 | 29.5 | 29.5 | 14.50 | 1785 | +13.4 |
| 28 | Bartilotti, De V R Joao Car | 1551 | MAC | −3B | −21N | +30B | −15N | =22B | −25N | −18N | =29B | −24N | 2.0 | 32.5 | 33.0 | 3.00 | 1410 | -29.6 |
| 29 | Chan, Boon Siang Philip | 0 | SGP | −9N | −19B | −17N | F | F | =30B | −24N | =28N | −25B | 1.0 | 24.0 | 24.0 | 1.25 | 1361 | 0.0 |
| 30 | FIDE 17702151 | 0 | — | −7N | −18B | −28N | −24B | −23N | =29N | −25B | −26B | −16N | 0.5 | 32.0 | 33.0 | 0.50 | 907 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Wong, Chin YeeMAS+58.04.0 pts · #22
- 2Bagamasbad, EfrenIMPHI+35.85.5 pts · #8
- 3Mooi, Kok Onn OsricSGP+27.84.5 pts · #16
Top rating losers
- 1Quah, Seng SunMAS-77.24.0 pts · #21
- 2Abdul Rahman, HamzahMAS-72.83.5 pts · #24
- 3Bartilotti, De V R Joao CarMAC-29.62.0 pts · #28
Biggest upsets
- R4+293 Elo gap
- R6+228 Elo gap
- R2+156 Elo gap