Offene Wuerttembergische Meisterschaft U25 2025
Round-RobinStandard
9 players participated in this 9-round tournament, held from 18 Aug 2025 to 22 Aug 2025 in Ostfildern, Germany. Top 10 Elo average was 1674, and top seed was Yibo Zhang (🇩🇪 GER, 2119).
Yibo Zhang (🇩🇪 GER, 2119) won with 7.0/9, ahead of Yunqi Li (6.5) and Martin Weiss (5.0).
The biggest upset came in round 9: Arnav Wakankar (1715) beat Qingzhi Alexander Chen (2018), a +303-point gap.
Location
🇩🇪Ostfildern, Germany
Dates
18 Aug 2025 → 22 Aug 2025
Time control
Standard: 40 Moves in 60 Min. Incr. 30 Sec. / / 30 Min. Incr. 30 Sec.
System
Round-robin · 9 rounds
Federations · 1 represented
🇩🇪Germany×9
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 9 · 9 roundsYibo Zhang led from R3 onwards, the runner-up race stayed tight.
Co-leaders
4
1
1
1
2
1
1
1
1
R3 · LEADER CHANGE19 Aug
Yibo Zhang takes the sole lead (2.5/3).
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Yibo Zhang beat Yunqi Li (Black).
WIN STREAKS · 2 top finishers
Yibo Zhang 3 wins (R6–R9)Martin Weiss 3 wins (R6–R8)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇩🇪Zhang, Yibo | 2119 | * | 1 | ½ | 1 | 1 | ½ | 1 | 1 | 1 | 7.0 | 24.75 | 29.0 | +34.4 | 2272 |
| 2 | 🇩🇪Li, Yunqi | 2062 | 0 | * | 1 | 1 | 1 | ½ | 1 | 1 | 1 | 6.5 | 20.75 | 29.5 | +12.8 | 2087 |
| 3 | 🇩🇪Weiss, Martin | 0 | ½ | 0 | * | 1 | 0 | 1 | ½ | 1 | 1 | 5.0 | 15.25 | 31.0 | 0.0 | 1923 |
| 4 | 🇩🇪Hellriegel, Hannes | 1758 | 0 | 0 | 0 | * | ½ | 1 | 1 | 1 | 1 | 4.5 | 11.00 | 31.5 | +87.2 | 2003 |
| 6 | 🇩🇪Wang, Simon | 1865 | 0 | 0 | 1 | ½ | * | ½ | 0 | 1 | 1 | 4.0 | 11.00 | 32.0 | -14.8 | 1835 |
| 5 | 🇩🇪Grube, Olaf | 1761 | ½ | ½ | 0 | 0 | ½ | * | 0 | 1 | 1 | 3.5 | 10.75 | 32.5 | +23.0 | 1900 |
| 7 | 🇩🇪Chen, Qingzhi Alexander | 2018 | 0 | 0 | ½ | 0 | 1 | 1 | * | 0 | 1 | 3.5 | 10.00 | 32.5 | -36.2 | 1813 |
| 8 | 🇩🇪Wakankar, Arnav | 1715 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | * | 1 | 2.0 | 3.50 | 34.0 | +2.8 | 1748 |
| 9 | 🇩🇪Hornung, Ruben | 1767 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | * | 0.0 | 0.00 | 36.0 | -96.0 | 1100 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Hellriegel, HannesGER+87.24.5 pts · #4
- 2Zhang, YiboGER+34.47.0 pts · #1
- 3Grube, OlafGER+23.03.5 pts · #5
Top rating losers
- 1Hornung, RubenGER-96.00.0 pts · #9
- 2Chen, Qingzhi AlexanderGER-36.23.5 pts · #7
- 3Wang, SimonGER-14.84.0 pts · #6
Biggest upsets
- R9+303 Elo gap
- R5+260 Elo gap