Via Christmas Invitational (Challengers)
Round-RobinStandard
8 players participated in this 7-round tournament, held from 26 Dec 2025 to 28 Dec 2025 in Seongnam, South Korea. Top 10 Elo average was 1579, and top seed was Artem Serg Li (🇰🇷 KOR, 1724).
Artem Serg Li (🇰🇷 KOR, 1724) won with 7.0/7, ahead of Hajoon Kim (6.0) and Jinwoo Lee (5.0). Li won solo starting round 3.
The biggest upset came in round 1: Taehyun Ahn (1520) beat Chabeen Park (1664), a +144-point gap.
Location
🇰🇷Seongnam, South Korea
Dates
26 Dec 2025 → 28 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Round-robin · 7 rounds
Federations · 1 represented
🇰🇷South Korea×8
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 8 · 7 roundsArtem Serg Li led from R3 onwards, the runner-up race stayed tight.
Co-leaders
4
2
1
1
1
1
1
R3–R7 · LEAD HELD
Artem Serg Li never relinquished the lead after R3; final gap +1.0 over the runner-up.
R1 · HEAD-TO-HEAD · WINNER VS 2ND
Artem Serg Li beat Hajoon Kim (White).
WIN STREAKS · 2 top finishers
Artem Serg Li 7 wins (R1–R7)Hajoon Kim 6 wins (R2–R7)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇰🇷Li, Artem Serg | 1724 | * | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7.0 | 21.00 | 21.0 | +78.8 | 2350 |
| 2 | 🇰🇷Kim, Hajoon | 1683 | 0 | * | 1 | 1 | 1 | 1 | 1 | 1 | 6.0 | 15.00 | 22.0 | +55.6 | 1866 |
| 3 | 🇰🇷Lee, Jinwoo | 1620 | 0 | 0 | * | 1 | 1 | 1 | 1 | 1 | 5.0 | 10.00 | 23.0 | +39.6 | 1723 |
| 4 | 🇰🇷Ahn, Taehyun | 1520 | 0 | 0 | 0 | * | 1 | ½ | ½ | 1 | 3.0 | 5.00 | 25.0 | +2.8 | 1530 |
| 5 | 🇰🇷Park, Chabeen | 1664 | 0 | 0 | 0 | 0 | * | 1 | 1 | 1 | 3.0 | 4.00 | 25.0 | -56.8 | 1509 |
| 6 | 🇰🇷Kim, Rian | 1490 | 0 | 0 | 0 | ½ | 0 | * | 1 | 1 | 2.5 | 3.00 | 25.5 | +13.6 | 1489 |
| 7 | 🇰🇷Lim, Jihyuk | 1483 | 0 | 0 | 0 | ½ | 0 | 0 | * | 1 | 1.5 | 1.50 | 26.5 | -48.4 | 1353 |
| 8 | 🇰🇷Yang, Jin | 1448 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | * | 0.0 | 0.00 | 28.0 | -85.2 | 791 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Li, Artem SergKOR+78.87.0 pts · #1
- 2Kim, HajoonKOR+55.66.0 pts · #2
- 3Lee, JinwooKOR+39.65.0 pts · #3
Top rating losers
- 1Yang, JinKOR-85.20.0 pts · #8
- 2Park, ChabeenKOR-56.83.0 pts · #5
- 3Lim, JihyukKOR-48.41.5 pts · #7
Biggest upsets
- R1+144 Elo gap