National Interstate Chess Championship 2025
Open SwissStandard
54 players participated in this 6-round tournament, held from 03 Oct 2025 to 06 Oct 2025 in Pontian, Johor, Malaysia. 3 titled players. Top 10 Elo average was 2045, and top seed was Mun Wan Leong (🇲🇾 MAS, 2155).
Hong Jun Lai (🇲🇾 MAS, CM, 2010) won with 5.5/6, ahead of Nik Ahmad Farouqi Nik (5.0) and Shu Heng Ng (5.0). Lai shared the lead from round 4 and broke clear in the final round.
The biggest upset came in round 1: Zaharul Azam Zainal Abidin (1591) beat Zhia Chen Zachary Lee (2025), a +434-point gap.
Location
🇲🇾Pontian, Johor, Malaysia
Dates
03 Oct 2025 → 06 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Titled players · 3
CM×3
Federations · 1 represented
🇲🇾Malaysia×54
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsCM Hong Jun Lai led from R6; +0.5-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R6.
Co-leaders
16
6
1
4
2
1
R6 · LEADER CHANGE06 Oct
CM Hong Jun Lai takes the sole lead (5.5/6).
R4–R6 · WIN STREAK
CM Hong Jun Lai won 3 in a row (R4–R6).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1CMHong Jun Lai | * | — | — | — |
| 2Rittesh Muraley | — | * | ½ | — |
| 3Nik Ahmad Farouqi Nik | — | ½ | * | — |
| 4Shu Heng Ng | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Lai, Hong JunCM | 2010 | MAS | +38N | +27B | =5N | +26B | +35N | +11B | 5.5 | 13.0 | 14.5 | 12.25 | 2267 | +50.8 |
| 2 | Nik, Nik Ahmad Farouqi | 1918 | MAS | +28B | +14N | =47B | +34N | =4B | +9B | 5.0 | 15.0 | 15.5 | 12.75 | 2197 | +30.2 |
| 3 | Ng, Shu Heng | 1803 | MAS | +46N | +20B | −7N | +44B | +10N | +12B | 5.0 | 14.0 | 15.0 | 11.00 | 2103 | +75.6 |
| 4 | Muraley, Rittesh | 1953 | MAS | +44B | +34B | =9N | +36B | =2N | +25B | 5.0 | 13.5 | 14.5 | 10.25 | 2070 | +35.6 |
| 5 | Abd Aziz, A Qil A Lauddin | 2005 | MAS | =16N | +19N | =1B | +45N | =11B | +22N | 4.5 | 16.5 | 17.5 | 11.75 | 1973 | -2.0 |
| 6 | Tin, Shan Wen | 2001 | MAS | +41B | +18N | +40B | =24N | +8B | −13N | 4.5 | 13.5 | 15.0 | 10.75 | 2197 | +31.2 |
| 7 | Tan, Yi Xun | 2022 | MAS | F | +39N | +3B | +15N | −12B | +28N | 4.0 | 14.5 | 14.5 | 11.50 | 1998 | -1.4 |
| 8 | Yusof, Kamaluddin | 1935 | MAS | +49N | −13B | +37N | +18B | −6N | +29B | 4.0 | 13.5 | 13.5 | 6.00 | 1979 | +9.4 |
| 9 | Looi, Xin HaoCM | 2048 | MAS | +31B | +47N | =4B | −16N | +14B | −2N | 3.5 | 18.0 | 18.5 | 8.00 | 1875 | -21.6 |
| 10 | Ibnu, Iwan Schani | 1828 | MAS | F | +12N | +34N | +23N | −3B | =15N | 3.5 | 15.0 | 15.0 | 8.50 | 1887 | +8.6 |
| 11 | Erowan, Masrin | 1912 | MAS | +25N | −35B | +27N | =19B | =5N | −1N | 3.0 | 16.5 | 18.0 | 7.50 | 1757 | -19.2 |
| 12 | Leong, Ee Hern | 1840 | MAS | +52N | −10B | −20N | +39B | +7N | −3N | 3.0 | 16.5 | 16.5 | 5.50 | 1783 | -16.4 |
| 13 | Lee, Zhia Chen Zachary | 2025 | MAS | −21B | +8N | =18B | =37N | −40B | +6B | 3.0 | 15.0 | 16.5 | 10.50 | 1909 | -13.8 |
| 14 | Ishak, Mohd Hafizul | 1835 | MAS | −30N | −2B | +19B | +47B | −9N | +36B | 3.0 | 14.5 | 15.0 | 4.50 | 1824 | -0.8 |
| 15 | Chong Jin Ci | 1770 | MAS | =23N | F | +50B | −7B | +32N | =10B | 3.0 | 12.0 | 12.0 | 5.00 | 1802 | +5.2 |
| 16 | Zainudin, Mohd Afif | 1701 | MAS | =5B | =22B | F | +9B | +45B | F | 3.0 | 11.5 | 11.5 | 8.00 | 2069 | +36.4 |
| 17 | Abd Aziz, ANiq ARiffin | 1840 | MAS | =26B | +37B | F | =29B | F | +21B | 3.0 | 8.0 | 8.0 | 6.00 | 1886 | +5.4 |
| 18 | Leong, Mun Wan | 2155 | MAS | F | −6B | =13N | −8N | +37B | +51B | 2.5 | 13.0 | 13.0 | 3.00 | 1842 | -31.6 |
| 19 | Soh, Joo Sheng Judson | 1548 | MAS | F | −5B | −14N | =11N | +47B | +42B | 2.5 | 12.5 | 12.5 | 3.50 | 1739 | +30.8 |
| 20 | Tukiran, Taulani | 1886 | MAS | +45B | −3N | +12B | F | =34B | −41N | 2.5 | 12.0 | 12.0 | 4.75 | 1707 | -22.2 |
| 21 | Zainal Abidin, Zaharul Azam | 1591 | MAS | +13N | −26B | F | =41N | +49B | −17N | 2.5 | 9.5 | 9.5 | 3.75 | 1810 | +25.0 |
| 22 | Mohd Azmi, Muhd Suhaib | 1816 | MAS | F | =16N | F | +38B | +53N | −5B | 2.5 | 9.0 | 9.0 | 3.00 | 1891 | +7.8 |
| 23 | Ishak, Izzul Imanuddin | 1712 | MAS | =15B | F | F | −10B | +39N | +48N | 2.5 | 8.5 | 8.5 | 3.50 | 1810 | +20.8 |
| 24 | Shahar, Uzair | 2099 | MAS | =40B | F | +51B | =6B | =29N | F | 2.5 | 8.0 | 8.0 | 4.00 | 1939 | -21.2 |
| 25 | Bakal, Mohd Bakri | 1727 | MAS | −11B | +44B | F | =31N | =30B | −4N | 2.0 | 13.0 | 13.0 | 3.00 | 1805 | +6.6 |
| 26 | Sulaiman, Muhd Rifqi Azfar | 1875 | MAS | =17N | +21N | =38N | −1N | F | F | 2.0 | 12.5 | 12.5 | 4.75 | 1825 | -9.2 |
| 27 | Chow, Ming Jack | 0 | MAS | +29N | −1N | −11B | +35B | F | F | 2.0 | 12.0 | 12.0 | 3.50 | 1871 | 0.0 |
| 28 | Wan Mat Yusof, Wan Ismail | 1755 | MAS | −2N | −32N | F | +46B | +54N | −7B | 2.0 | 12.0 | 12.0 | 1.00 | 1557 | -40.0 |
| 29 | Beh, Yap Long Roger | 1702 | MAS | −27B | F | +49N | =17N | =24B | −8N | 2.0 | 11.5 | 11.5 | 2.75 | 1879 | +32.0 |
| 30 | Yong, Qing Sheng | 0 | MAS | +14B | =48N | −36B | F | =25N | −34B | 2.0 | 8.5 | 8.5 | 4.25 | 1647 | 0.0 |
| 31 | Ibni Hajar, Amri | 1966 | MAS | −9N | +42N | =44N | =25B | F | F | 2.0 | 8.0 | 8.0 | 3.00 | 1781 | -17.4 |
| 32 | Zukefeli, Muhd Zulkarnain | 1628 | MAS | F | +28B | +46N | F | −15B | F | 2.0 | 6.0 | 6.0 | 3.00 | 1763 | +14.4 |
| 33 | Shee, Jia Wee | 1779 | MAS | +36N | F | F | F | F | +38B | 2.0 | 3.0 | 3.0 | 3.00 | 2621 | +44.4 |
| 34 | Choong, Ee Jay | 1563 | MAS | F | −4N | −10B | −2B | =20N | +30N | 1.5 | 18.0 | 18.0 | 3.25 | 1575 | -0.4 |
| 35 | Razman, Muhd Asyraf | 1858 | MAS | −42B | +11N | F | −27N | −1B | =45N | 1.5 | 13.0 | 13.0 | 3.50 | 1705 | -16.2 |
| 36 | Yap, Kah Yii | 1788 | MAS | −33B | F | +30N | −4N | =44B | −14N | 1.5 | 13.0 | 13.0 | 2.50 | 1504 | -51.6 |
| 37 | Tan, Hong Jun | 1594 | MAS | F | −17N | −8B | =13B | −18N | +49N | 1.5 | 12.5 | 12.5 | 1.50 | 1732 | +23.2 |
| 38 | Abdullah, Muhd Rafiquzzaman | 1854 | MAS | −1B | +49B | =26B | −22N | F | −33N | 1.5 | 12.0 | 12.0 | 1.00 | 1675 | -47.2 |
| 39 | Gunasekaran, Grijes | 1583 | MAS | F | −7B | =43N | −12N | −23B | +50B | 1.5 | 11.0 | 11.0 | 0.75 | 1645 | +6.0 |
| 40 | Zulkipli, ZaidanCM | 2111 | MAS | =24N | F | −6N | F | +13N | F | 1.5 | 10.0 | 10.0 | 4.25 | 2042 | -5.8 |
| 41 | Mohd Khalil, Ahmad Syukri | 1696 | MAS | −6N | F | F | =21B | F | +20B | 1.5 | 9.5 | 9.5 | 3.75 | 1829 | +18.8 |
| 42 | Lee, San Seng | 1612 | MAS | +35N | −31B | =45N | F | F | −19N | 1.5 | 7.0 | 7.0 | 2.00 | 1663 | +5.2 |
| 43 | Yasnain, Mohd Yusof | 1974 | MAS | +50B | F | =39B | F | F | F | 1.5 | 1.5 | 1.5 | 0.75 | 1772 | -13.2 |
| 44 | Zulkifli, Muhd Hafizuddin | 1736 | MAS | −4N | −25N | =31B | −3N | =36N | F | 1.0 | 15.5 | 15.5 | 1.75 | 1608 | -15.6 |
| 45 | Pang, Chow Ping | 1633 | MAS | −20N | F | =42B | −5B | −16N | =35B | 1.0 | 13.0 | 13.0 | 1.50 | 1573 | -18.0 |
| 46 | Mat, Marzuki | 0 | MAS | −3B | +50N | −32B | −28N | F | F | 1.0 | 9.0 | 9.0 | 0.00 | 1469 | 0.0 |
| 47 | Mohd Shamsudin, Mohd Faizal | 0 | MAS | F | −9B | =2N | −14N | −19N | F | 0.5 | 14.0 | 14.0 | 2.50 | 1514 | 0.0 |
| 48 | Azham, Muhd Samih | 1677 | MAS | F | =30B | F | F | F | −23B | 0.5 | 4.5 | 4.5 | 1.00 | 911 | -18.0 |
| 49 | Adjmain, Mohd Yusri | 1643 | MAS | −8B | −38N | −29B | F | −21N | −37B | 0.0 | 11.5 | 11.5 | 0.00 | 937 | -38.2 |
| 50 | Ahmad Jamali, Muhd Sollihin | 1462 | MAS | −43N | −46B | −15N | F | F | −39N | 0.0 | 7.0 | 7.0 | 0.00 | 939 | -22.0 |
| 51 | Ahmad, Darwis | 0 | MAS | F | F | −24N | F | F | −18N | 0.0 | 5.0 | 5.0 | 0.00 | 1327 | 0.0 |
| 52 | Abdullah, Ammar | 1578 | MAS | −12B | F | F | F | F | F | 0.0 | 3.0 | 3.0 | 0.00 | 1041 | -7.2 |
| 53 | Abd Rahman, Syazrin | 1619 | MAS | F | F | F | F | −22B | F | 0.0 | 2.5 | 2.5 | 0.00 | 1016 | -5.0 |
| 54 | Pani, Ahmad Jais | 1438 | MAS | F | F | F | F | −28B | F | 0.0 | 2.0 | 2.0 | 0.00 | 955 | -5.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ng, Shu HengMAS+75.65.0 pts · #7
- 2Lai, Hong JunCMMAS+50.85.5 pts · #2
- 3Shee, Jia WeeMAS+44.42.0 pts · #23
Top rating losers
- 1Yap, Kah YiiMAS-51.61.5 pts · #45
- 2Abdullah, Muhd RafiquzzamanMAS-47.21.5 pts · #29
- 3Wan Mat Yusof, Wan IsmailMAS-40.02.0 pts · #40
Biggest upsets
- R1+434 Elo gap
- R4+347 Elo gap
- R1+246 Elo gap