a3Ds Chess-Open 2025 A-Open
Open SwissStandard
56 players participated in this 7-round tournament, held on 10 Jul 2025 in Braunschweig, Germany. 3 titled players from 2 federations. Top 10 Elo average was 2060, and top seed was Fabian Stotyn (🇩🇪 GER, CM, 2161).
Dennis Martin (🇩🇪 GER, 2016) won with 6.0/7, ahead of Antal Mimkes (6.0) and Maximilian Vogel (5.5). Martin shared the lead from round 3, winning on tie-break.
The biggest upset came in round 1: Kyllian Gotthold Tanukusuma (1711) beat Hartmut Porth (2013), a +302-point gap.
Location
🇩🇪Braunschweig, Germany
Dates
10 Jul 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 7 rounds
Titled players · 3
FM×1
CM×2
Federations · 2 represented
🇩🇪Germany×55
🇺🇦Ukraine×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R7; 2 players tied at 6.0/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Co-leaders
24
10
3
2
3
1
2
R7 · TIEBREAK CLUSTER
2 players finish on 6.0/7. Martin takes the title on Buchholz Cut1 (29.0).
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Antal Mimkes drew with Dennis Martin (Black).
WIN STREAKS · 3 top finishers
Antal Mimkes 4 wins (R1–R4)Dennis Martin 4 wins (R1–R4)Maximilian Vogel 4 wins (R3–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Antal Mimkes | * | ½ | — | — |
| 2Dennis Martin | ½ | * | ½ | — |
| 3Maximilian Vogel | — | ½ | * | — |
| 4CMSergej Bogomolow | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Martin, Dennis | 2016 | GER | +18N | +32B | +16N | +9B | =2B | +5N | =3B | 6.0 | 29.0 | 32.0 | 26.25 | 2225 | +33.4 |
| 2 | Mimkes, Antal | 2089 | GER | +27N | +17B | +24N | +4B | =1N | =6B | +9N | 6.0 | 28.0 | 31.5 | 26.00 | 2274 | +27.4 |
| 3 | Vogel, Maximilian | 2078 | GER | +23N | −16B | +18N | +32B | +17B | +4N | =1N | 5.5 | 26.5 | 29.5 | 22.50 | 2128 | +20.4 |
| 4 | Stotyn, FabianCM | 2161 | GER | +55B | +26N | +6B | −2N | +25B | −3B | +17N | 5.0 | 27.5 | 28.5 | 17.00 | 2096 | -7.2 |
| 5 | Stoy, Ulf | 1930 | GER | +41N | +35B | =22N | +11B | +8N | −1B | =6N | 5.0 | 26.5 | 29.0 | 18.75 | 2003 | +14.2 |
| 6 | Nuerenberg, Marius | 1897 | GER | +52N | +31B | −4N | +27B | +16N | =2N | =5B | 5.0 | 26.5 | 27.5 | 17.00 | 2121 | +41.6 |
| 7 | Bogomolow, SergejCM | 2081 | GER | +38N | +37B | =11N | −8B | =13N | +16B | +19B | 5.0 | 24.5 | 27.5 | 18.50 | 2029 | -7.0 |
| 8 | Schramm, Kilian | 1850 | GER | =21B | +34N | +20B | +7N | −5B | −17N | +22B | 4.5 | 25.5 | 28.5 | 17.50 | 1989 | +26.8 |
| 9 | Bangert, Jonas | 1970 | GER | +48B | =28N | +33B | −1N | +26B | +25N | −2B | 4.5 | 25.5 | 27.5 | 13.75 | 2007 | +15.6 |
| 10 | Sviridov, Vitaliy | 1794 | GER | +14B | −24N | −17N | +47B | +32N | +26B | =12N | 4.5 | 23.0 | 25.0 | 15.25 | 1992 | +38.0 |
| 11 | Graf, David | 1863 | GER | +45N | +49B | =7B | −5N | =20B | =22N | +25B | 4.5 | 23.0 | 25.0 | 13.75 | 2030 | +62.8 |
| 12 | Hehn, Hartmut | 2015 | GER | −35B | +41N | =23B | +28N | +29B | =19N | =10B | 4.5 | 22.0 | 24.5 | 15.50 | 1928 | -13.4 |
| 13 | Chakhalov, Mikael | 1868 | GER | −33B | =46N | +34B | +31N | =7B | =29N | +18B | 4.5 | 21.5 | 23.5 | 15.25 | 1908 | +17.2 |
| 14 | Czeisz, Luca | 1879 | GER | −10N | =44B | −36N | +52B | +41N | +31B | +27N | 4.5 | 19.0 | 20.0 | 11.25 | 1958 | +31.2 |
| 15 | Bundan, EdwardFM | 2010 | GER | −31B | =52N | +46B | =43N | =22B | +23N | +29B | 4.5 | 18.0 | 19.0 | 12.50 | 1888 | -35.6 |
| 16 | Klinke, Roland, Dr. | 1873 | GER | +30B | +3N | −1B | +49N | −6B | −7N | +34B | 4.0 | 28.0 | 30.0 | 14.00 | 2006 | +24.6 |
| 17 | Thieme-Garmann, Alexander | 1950 | GER | +53N | −2N | +10B | +42B | −3N | +8B | −4B | 4.0 | 28.0 | 29.0 | 12.50 | 1983 | +7.0 |
| 18 | Ponyrko, Matviy | 1662 | UKR | −1B | +51N | −3B | +54N | +42N | +24B | −13N | 4.0 | 23.5 | 24.5 | 8.50 | 1931 | +92.4 |
| 19 | Porth, Hartmut | 2013 | GER | −22B | =43N | +52B | +23N | +21B | =12B | −7N | 4.0 | 23.0 | 24.0 | 12.00 | 1905 | -17.0 |
| 20 | Neuendorf, Max | 1996 | GER | =50N | +36B | −8N | +37B | =11N | =27B | =21N | 4.0 | 22.5 | 24.0 | 12.75 | 1889 | -18.6 |
| 21 | Petersen, Malte | 1732 | GER | =8N | =50B | =37N | +36B | −19N | +28N | =20B | 4.0 | 22.0 | 23.5 | 13.00 | 1954 | +81.6 |
| 22 | Tanukusuma, Kyllian Gotthold | 1711 | GER | +19N | +42B | =5B | −25N | =15N | =11B | −8N | 3.5 | 26.0 | 28.5 | 13.50 | 1922 | +73.6 |
| 23 | Marzik, Arne | 1795 | GER | −3B | +30N | =12N | −19B | +33N | −15B | +42N | 3.5 | 25.0 | 27.5 | 11.25 | 1912 | +20.6 |
| 24 | Neumann, Ingo | 1933 | GER | +44N | +10B | −2B | −29N | +43B | −18N | =30B | 3.5 | 24.0 | 26.5 | 11.25 | 1779 | -27.0 |
| 25 | Kettner-Nikolaus, Frank | 1926 | GER | +46B | =33N | +28B | +22B | −4N | −9B | −11N | 3.5 | 24.0 | 26.0 | 10.50 | 1855 | -13.0 |
| 26 | Harms, Friedjof | 1868 | GER | +39N | −4B | =31N | +33B | −9N | −10N | +44B | 3.5 | 23.0 | 25.5 | 10.00 | 1877 | +1.0 |
| 27 | Martetschlaeger, Hubert | 1826 | GER | −2B | +53N | +54B | −6N | +45B | =20N | −14B | 3.5 | 22.5 | 23.5 | 6.00 | 1856 | +9.2 |
| 28 | Poelig, Juergen | 1864 | GER | +47N | =9B | −25N | −12B | +44N | −21B | +32N | 3.5 | 22.0 | 24.0 | 9.75 | 1859 | -0.8 |
| 29 | Netuschil, Marvin | 1743 | GER | −49N | +45B | +47N | +24B | −12N | =13B | −15N | 3.5 | 21.0 | 23.0 | 9.75 | 1922 | +59.6 |
| 30 | Baumann, Simon | 1665 | GER | −16N | −23B | +38N | =41B | +35N | =42B | =24N | 3.5 | 19.5 | 22.0 | 10.25 | 1839 | +62.8 |
| 31 | Stukemeier, Ralf | 1931 | GER | +15N | −6N | =26B | −13B | +36N | −14N | =35B | 3.0 | 25.0 | 28.0 | 10.75 | 1845 | -16.8 |
| 32 | Juergenpott, Maximilian | 1812 | GER | +51B | −1N | +39B | −3N | −10B | +53N | −28B | 3.0 | 24.0 | 25.0 | 5.50 | 1795 | -5.2 |
| 33 | Klebsch, Tobias | 1740 | GER | +13N | =25B | −9N | −26N | −23B | =38B | +43N | 3.0 | 22.5 | 25.0 | 10.25 | 1805 | +22.0 |
| 34 | Wetterau, Jonathan | 1811 | GER | =36N | −8B | −13N | =38B | +51N | +37B | −16N | 3.0 | 22.0 | 23.5 | 7.50 | 1789 | -4.8 |
| 35 | Tittmann, Julian | 1792 | GER | +12N | −5N | −49B | =39N | −30B | +41B | =31N | 3.0 | 21.5 | 23.5 | 10.00 | 1839 | +10.4 |
| 36 | Grosselohmann, Gerhard | 1950 | GER | =34B | −20N | +14B | −21N | −31B | +45N | =39B | 3.0 | 21.5 | 23.5 | 9.50 | 1782 | -31.6 |
| 37 | Freise, Linus | 1797 | GER | +54B | −7N | =21B | −20N | =39B | −34N | +45B | 3.0 | 21.0 | 22.0 | 6.50 | 1781 | -9.6 |
| 38 | Wirries, Frank-Michael, Dr. | 1835 | GER | −7B | −54N | −30B | =34N | +46B | =33N | +47B | 3.0 | 18.5 | 19.5 | 7.00 | 1732 | -20.2 |
| 39 | Bruehe, Martin | 1764 | GER | −26B | +55N | −32N | =35B | =37N | =43B | =36N | 3.0 | 18.0 | 19.0 | 6.75 | 1752 | -2.8 |
| 40 | Flucke, Felix | 1797 | GER | F | F | F | F | +56B | +48N | +53B | 3.0 | 3.0 | 3.0 | 3.00 | 2579 | +57.2 |
| 41 | Grabowski, Petra | 1778 | GER | −5B | −12B | +51N | =30N | −14B | −35N | +50B | 2.5 | 22.0 | 23.5 | 4.75 | 1733 | -9.4 |
| 42 | Burnus, Finn Crispin | 1864 | GER | +43B | −22N | +50B | −17N | −18B | =30N | −23B | 2.5 | 21.0 | 22.5 | 5.75 | 1664 | -76.0 |
| 43 | Rabe, Fabian | 1721 | GER | −42N | =19B | +44N | =15B | −24N | =39N | −33B | 2.5 | 20.5 | 23.0 | 8.25 | 1770 | +6.4 |
| 44 | Wahono, Richard | 1783 | GER | −24B | =14N | −43B | +46N | −28B | +50N | −26N | 2.5 | 19.5 | 21.0 | 5.75 | 1726 | -11.4 |
| 45 | Gottwald, Siegmar | 1711 | GER | −11B | −29N | +48B | +50N | −27N | −36B | −37N | 2.0 | 19.5 | 21.0 | 3.50 | 1680 | -6.4 |
| 46 | Wittig, Georg | 1676 | GER | −25N | =13B | −15N | −44B | −38N | =52B | +51N | 2.0 | 19.5 | 20.5 | 4.25 | 1706 | +6.0 |
| 47 | Balint, Levente | 1774 | GER | −28B | +48N | −29B | −10N | =50B | =51B | −38N | 2.0 | 18.0 | 19.5 | 3.50 | 1646 | -48.4 |
| 48 | Hoyer, Olaf | 1832 | GER | −9N | −47B | −45N | −51B | +52N | −40B | +56N | 2.0 | 14.0 | 14.0 | 1.00 | 1656 | -33.4 |
| 49 | Langenberg, Magnus | 2141 | GER | +29B | −11N | +35N | −16B | — | — | — | 2.0 | 12.0 | 15.0 | 6.50 | 1819 | -58.4 |
| 50 | Carsten, Juergen | 1858 | GER | =20B | =21N | −42N | −45B | =47N | −44B | −41N | 1.5 | 17.5 | 19.5 | 5.00 | 1575 | -50.0 |
| 51 | von Renesse, Hans-Konstantin | 1703 | GER | −32N | −18B | −41B | +48N | −34B | =47N | −46B | 1.5 | 16.5 | 18.5 | 3.00 | 1534 | -57.2 |
| 52 | Becker, Joerg | 1928 | GER | −6B | =15B | −19N | −14N | −48B | =46N | F | 1.0 | 22.0 | 22.0 | 3.25 | 1611 | -46.4 |
| 53 | Salim, Florian | 1692 | GER | −17B | −27B | −55N | +56N | F | −32B | −40N | 1.0 | 15.5 | 15.5 | 0.00 | 1538 | -43.2 |
| 54 | Wohlrabe, Joerg | 1723 | GER | −37N | +38B | −27N | −18B | F | — | — | 1.0 | 13.5 | 14.5 | 3.00 | 1587 | -14.0 |
| 55 | Juettner, Anton | 1671 | GER | −4N | −39B | +53B | — | — | — | — | 1.0 | 8.0 | 9.0 | 1.00 | 1718 | +3.2 |
| 56 | Koths, Peter | 1812 | GER | F | F | F | −53B | −40N | F | −48B | 0.0 | 6.0 | 6.0 | 0.00 | 974 | -33.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ponyrko, MatviyUKR+92.44.0 pts · #18
- 2Petersen, MalteGER+81.64.0 pts · #17
- 3Tanukusuma, Kyllian GottholdGER+73.63.5 pts · #22
Top rating losers
- 1Burnus, Finn CrispinGER-76.02.5 pts · #43
- 2Langenberg, MagnusGER-58.42.0 pts · #46
- 3von Renesse, Hans-KonstantinGER-57.21.5 pts · #51
Biggest upsets
- R1+302 Elo gap
- R2+278 Elo gap
- R6+271 Elo gap