ACC Winter Cup 2025 Rounds 8-9
Open SwissStandard
69 players participated in this 9-round tournament, held from 04 Aug 2025 to 11 Aug 2025 in Auckland, New Zealand. 8 titled players from 4 federations. Top 10 Elo average was 1958, and top seed was Alphaeus Wei Ern Ang (🇳🇿 NZL, FM, 2377).
Yanbo Jin (🇳🇿 NZL, 1973) won with 2.0/9, ahead of Emily Cathay Gan (2.0) and Vera Jintian Xu (2.0). Jin shared the lead from round 1, winning on tie-break.
The biggest upset came in round 8: Preeyansh Roul (1937) beat Alphaeus Wei Ern Ang (FM, 2377), a +440-point gap.
Location
🇳🇿Auckland, New Zealand
Dates
04 Aug 2025 → 11 Aug 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Titled players · 8
FM×1
CM×3
WCM×4
Federations · 4 represented
🇳🇿New Zealand×66
🇰🇷South Korea×1
🇬🇧England×1
🇷🇸Serbia×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsTight race until R9; 8 players tied at 2.0/9, decided on Buchholz. Title race narrowed from 82 co-leaders at R4 to 8 at the finish.
Co-leaders
82
82
82
82
82
82
82
23
8
R9 · TIEBREAK CLUSTER
8 players finish on 2.0/9. Jin takes the title on Buchholz Cut1 (1.0).
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Jin, Yanbo | 1973 | NZL | F | F | F | F | F | F | F | +53N | +31B | 2.0 | 1.0 | 1.0 | 1.00 | 2598 | +20.0 |
| 2 | Gan, Emily CathayWCM | 1745 | NZL | F | F | F | F | F | F | F | +51B | +19N | 2.0 | 1.0 | 1.0 | 1.00 | 2457 | +32.8 |
| 3 | Xu, Vera Jintian | 0 | NZL | F | F | F | F | F | F | F | +32N | +60N | 2.0 | 1.0 | 1.0 | 1.00 | 2294 | +46.4 |
| 4 | Saunders, Dean | 1520 | NZL | F | F | F | F | F | F | F | +20B | +58B | 2.0 | 1.0 | 1.0 | 1.00 | 2319 | +42.8 |
| 5 | Powlesland, Brogan | 1652 | NZL | F | F | F | F | F | F | F | +54N | +62B | 2.0 | 0.0 | 0.0 | 0.00 | 2558 | +26.6 |
| 6 | Zhang, Lucas Boyu | 1632 | NZL | F | F | F | F | F | F | F | +55B | +51N | 2.0 | 0.0 | 0.0 | 0.00 | 2409 | +40.4 |
| 7 | Wang, Zi Yao (kelvin) | 1876 | NZL | F | F | F | F | F | F | F | +52N | +56B | 2.0 | 0.0 | 0.0 | 0.00 | 2508 | +25.2 |
| 8 | Meng, Harrison Xiang Zhi | 1601 | NZL | F | F | F | F | F | F | F | +57B | +61N | 2.0 | 0.0 | 0.0 | 0.00 | 2221 | +10.0 |
| 9 | Baker, Ilias Angelo (Leo)CM | 1992 | NZL | F | F | F | F | F | F | F | +38B | =12N | 1.5 | 2.5 | 2.5 | 1.75 | 2115 | +2.8 |
| 10 | Po`e-Tofaeono, Grayson | 1869 | NZL | F | F | F | F | F | F | F | =15B | +22N | 1.5 | 2.5 | 2.5 | 1.75 | 1828 | +4.0 |
| 11 | Hwang, Ryan | 1685 | NZL | F | F | F | F | F | F | F | +39B | =21N | 1.5 | 2.0 | 2.0 | 1.50 | 1751 | +2.8 |
| 12 | Tew, Yao Zen MarkisCM | 1936 | NZL | F | F | F | F | F | F | F | +45B | =9B | 1.5 | 2.0 | 2.0 | 1.25 | 2148 | +7.2 |
| 13 | Nagorski, AlexCM | 1956 | NZL | F | F | F | F | F | F | F | =16B | +46N | 1.5 | 2.0 | 2.0 | 1.25 | 1934 | -0.6 |
| 14 | Preeyansh Roul | 1937 | NZL | F | F | F | F | F | F | F | +23N | =45B | 1.5 | 1.5 | 1.5 | 1.25 | 2313 | +29.2 |
| 15 | Hoang, Lucas | 1654 | NZL | F | F | F | F | F | F | F | =10N | +52B | 1.5 | 1.5 | 1.5 | 0.75 | 1907 | +26.8 |
| 16 | Tao, Junqing Jerome | 1784 | NZL | F | F | F | F | F | F | F | =13N | +53B | 1.5 | 1.5 | 1.5 | 0.75 | 2077 | +33.2 |
| 17 | McConnell, Jack | 1791 | NZL | F | F | F | F | F | F | F | =46B | +64N | 1.5 | 0.5 | 0.5 | 0.25 | 1978 | +9.8 |
| 18 | Pei, Yanshuo | 1727 | NZL | F | F | F | F | F | F | F | +63B | =49N | 1.5 | 0.5 | 0.5 | 0.25 | 1948 | +21.2 |
| 19 | Michael, Andrew | 1573 | NZL | F | F | F | F | F | F | F | +26N | −2B | 1.0 | 3.0 | 3.0 | 1.00 | 1669 | +5.6 |
| 20 | Wang, Zi Hao (Johnny) | 1468 | NZL | F | F | F | F | F | F | F | −4N | +42B | 1.0 | 3.0 | 3.0 | 1.00 | 1549 | +11.2 |
| 21 | Wang, Linyu | 1550 | NZL | F | F | F | F | F | F | F | =27N | =11B | 1.0 | 2.5 | 2.5 | 1.25 | 1683 | +11.2 |
| 22 | Zhou, Martin | 1654 | NZL | F | F | F | F | F | F | F | +29N | −10B | 1.0 | 2.5 | 2.5 | 1.00 | 1657 | +4.0 |
| 23 | Ang, Alphaeus Wei ErnFM | 2377 | NZL | F | F | F | F | F | F | F | −14B | +25B | 1.0 | 2.5 | 2.5 | 1.00 | 1991 | -8.4 |
| 24 | Balakeyan, Raj | 1744 | NZL | F | F | F | F | F | F | F | +30N | −29B | 1.0 | 2.0 | 2.0 | 1.00 | 1523 | -10.0 |
| 25 | Hettiarachchi, Buthsara | 1850 | NZL | F | F | F | F | F | F | F | +36B | −23N | 1.0 | 2.0 | 2.0 | 1.00 | 1985 | +8.8 |
| 26 | Dann, Huw | 1665 | NZL | F | F | F | F | F | F | F | −19B | +41N | 1.0 | 2.0 | 2.0 | 1.00 | 1532 | -4.6 |
| 27 | Guo, Anne Xuduo | 1622 | NZL | F | F | F | F | F | F | F | =21B | =33N | 1.0 | 2.0 | 2.0 | 1.00 | 1681 | +3.6 |
| 28 | Fan, Eric | 1559 | NZL | F | F | F | F | F | F | F | +37B | −40N | 1.0 | 2.0 | 2.0 | 1.00 | 1518 | +0.8 |
| 29 | Zhao, Nicole Xiaoyin | 1509 | NZL | F | F | F | F | F | F | F | −22B | +24N | 1.0 | 2.0 | 2.0 | 1.00 | 1666 | +14.4 |
| 30 | Hawke, Amy | 1585 | NZL | F | F | F | F | F | F | F | −24B | +43B | 1.0 | 2.0 | 2.0 | 1.00 | 913 | -9.6 |
| 31 | Guo, Benjamin | 1795 | NZL | F | F | F | F | F | F | F | +69B | −1N | 1.0 | 2.0 | 2.0 | 0.00 | 1876 | +4.8 |
| 32 | Smith, Peter K | 0 | NZL | F | F | F | F | F | F | F | −3B | +59N | 1.0 | 2.0 | 2.0 | 0.00 | 635 | -27.6 |
| 33 | Ha, Timothy Huy Minh | 1746 | NZL | F | F | F | F | F | F | F | =47N | =27B | 1.0 | 1.5 | 1.5 | 0.75 | 1641 | -7.4 |
| 34 | Steiner, Michael | 0 | NZL | F | F | F | F | F | F | F | =48N | =35N | 1.0 | 1.5 | 1.5 | 0.75 | 1484 | 0.0 |
| 35 | Smith, Jeremy D S | 1474 | NZL | F | F | F | F | F | F | F | =50N | =34B | 1.0 | 1.5 | 1.5 | 0.75 | 1678 | +5.4 |
| 36 | Holdo, Karl | 1712 | NZL | F | F | F | F | F | F | F | −25N | +47B | 1.0 | 1.5 | 1.5 | 0.50 | 1748 | +2.0 |
| 37 | Ma, Roy | 1406 | NZL | F | F | F | F | F | F | F | −28N | +48B | 1.0 | 1.5 | 1.5 | 0.50 | 1507 | +10.8 |
| 38 | Xu, Luna YuexiuWCM | 1778 | NZL | F | F | F | F | F | F | F | −9N | +67B | 1.0 | 1.5 | 1.5 | 0.00 | 1884 | +4.8 |
| 39 | Thompson, Michael | 1524 | ENG | F | F | F | F | F | F | F | −11N | +66B | 1.0 | 1.5 | 1.5 | 0.00 | 920 | -5.2 |
| 40 | Chen, Anderson | 1663 | NZL | F | F | F | F | F | F | F | F | +28B | 1.0 | 1.0 | 1.0 | 1.00 | 2310 | +13.6 |
| 41 | Nguyen, Kane | 1521 | NZL | F | F | F | F | F | F | F | +68N | −26B | 1.0 | 1.0 | 1.0 | 0.00 | 1529 | +3.6 |
| 42 | Youn, Laeho | 1577 | KOR | F | F | F | F | F | F | F | +65N | −20N | 1.0 | 1.0 | 1.0 | 0.00 | 1482 | -13.2 |
| 43 | McClory, John | 0 | NZL | F | F | F | F | F | F | F | +59B | −30N | 1.0 | 1.0 | 1.0 | 0.00 | 715 | 0.0 |
| 44 | Kirschbaum, Asher | 1539 | NZL | F | F | F | F | F | F | F | F | +54B | 1.0 | 0.0 | 0.0 | 0.00 | 2457 | +26.4 |
| 45 | Feng, SophiaWCM | 1791 | NZL | F | F | F | F | F | F | F | −12N | =14N | 0.5 | 3.0 | 3.0 | 0.75 | 1807 | -4.0 |
| 46 | Xu, Huankai (eden) | 1712 | NZL | F | F | F | F | F | F | F | =17N | −13B | 0.5 | 3.0 | 3.0 | 0.75 | 1677 | -5.2 |
| 47 | Barry, Jacob | 1606 | NZL | F | F | F | F | F | F | F | =33B | −36N | 0.5 | 2.0 | 2.0 | 0.50 | 1553 | -4.2 |
| 48 | Milne, Virginia | 1502 | NZL | F | F | F | F | F | F | F | =34B | −37N | 0.5 | 2.0 | 2.0 | 0.50 | 610 | -12.6 |
| 49 | Yue, Annie | 1692 | NZL | F | F | F | F | F | F | F | F | =18B | 0.5 | 1.5 | 1.5 | 0.75 | 1744 | +2.4 |
| 50 | Grubic, Bogdan | 1742 | SRB | F | F | F | F | F | F | F | =35B | F | 0.5 | 1.0 | 1.0 | 0.50 | 1465 | -10.8 |
| 51 | Pan, Alexander Hanrui | 1661 | NZL | F | F | F | F | F | F | F | −2N | −6B | 0.0 | 4.0 | 4.0 | 0.00 | 865 | -48.8 |
| 52 | Song, Quinn | 1567 | NZL | F | F | F | F | F | F | F | −7B | −15N | 0.0 | 3.5 | 3.5 | 0.00 | 952 | -29.2 |
| 53 | Po`e-Tofaeono, Hunter | 1749 | NZL | F | F | F | F | F | F | F | −1B | −16N | 0.0 | 3.5 | 3.5 | 0.00 | 1074 | -34.0 |
| 54 | Yay, Coskun | 0 | NZL | F | F | F | F | F | F | F | −5B | −44N | 0.0 | 3.0 | 3.0 | 0.00 | 784 | -48.0 |
| 55 | Sun, Mingjun Elvin | 1493 | NZL | F | F | F | F | F | F | F | −6N | F | 0.0 | 2.0 | 2.0 | 0.00 | 808 | -12.8 |
| 56 | Xu, Jeremy Xi | 1776 | NZL | F | F | F | F | F | F | F | F | −7N | 0.0 | 2.0 | 2.0 | 0.00 | 1052 | -15.6 |
| 57 | Arun, Swarun | 1456 | NZL | F | F | F | F | F | F | F | −8N | F | 0.0 | 2.0 | 2.0 | 0.00 | 818 | -10.0 |
| 58 | Zhou, Adele | 1559 | NZL | F | F | F | F | F | F | F | F | −4N | 0.0 | 2.0 | 2.0 | 0.00 | 694 | -25.6 |
| 59 | Goble, Darryn Clifford | 0 | NZL | F | F | F | F | F | F | F | −43N | −32B | 0.0 | 2.0 | 2.0 | 0.00 | 774 | 0.0 |
| 60 | Upadhyay, Akshat | 0 | NZL | F | F | F | F | F | F | F | F | −3B | 0.0 | 2.0 | 2.0 | 0.00 | 635 | -18.8 |
| 61 | Zhou, Guangzhao (allison) | 0 | NZL | F | F | F | F | F | F | F | −?N | −8B | 0.0 | 2.0 | 2.0 | 0.00 | 803 | 0.0 |
| 62 | Liu, Richard Jingjie | 1812 | NZL | F | F | F | F | F | F | F | F | −5N | 0.0 | 2.0 | 2.0 | 0.00 | 830 | -31.6 |
| 63 | Sun, Wanyao SarahWCM | 1818 | NZL | F | F | F | F | F | F | F | −18N | F | 0.0 | 1.5 | 1.5 | 0.00 | 944 | -23.6 |
| 64 | Jiang, Patrick Di | 1673 | NZL | F | F | F | F | F | F | F | F | −17B | 0.0 | 1.5 | 1.5 | 0.00 | 989 | -23.2 |
| 65 | Green, Nathan | 0 | NZL | F | F | F | F | F | F | F | −42B | F | 0.0 | 1.0 | 1.0 | 0.00 | 804 | -15.2 |
| 66 | Wong, Eric | 0 | NZL | F | F | F | F | F | F | F | F | −39N | 0.0 | 1.0 | 1.0 | 0.00 | 736 | 0.0 |
| 67 | Hettiarachchi, Kisara | 1590 | NZL | F | F | F | F | F | F | F | F | −38N | 0.0 | 1.0 | 1.0 | 0.00 | 1032 | -13.2 |
| 68 | Tang, Kevin | 1442 | NZL | F | F | F | F | F | F | F | −41B | F | 0.0 | 1.0 | 1.0 | 0.00 | 695 | -8.6 |
| 69 | Sun, Oliver | 1712 | NZL | F | F | F | F | F | F | F | −31N | F | 0.0 | 1.0 | 1.0 | 0.00 | 979 | -18.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Xu, Vera JintianNZL+46.42.0 pts · #4
- 2Saunders, DeanNZL+42.82.0 pts · #6
- 3Zhang, Lucas BoyuNZL+40.42.0 pts · #5
Top rating losers
- 1Pan, Alexander HanruiNZL-48.80.0 pts · #69
- 2Yay, CoskunNZL-48.00.0 pts · #47
- 3Po`e-Tofaeono, HunterNZL-34.00.0 pts · #66
Biggest upsets
- R8+440 Elo gap
- R9+235 Elo gap
- R9+160 Elo gap