Seebach Weekend Open Classic B
Open SwissStandard
51 players participated in this 7-round tournament, held from 18 Oct 2025 to 19 Oct 2025 in Zurich, Switzerland. 2 federations represented. Top 10 Elo average was 1717, and top seed was Ruben Unsworth (🇨🇭 SUI, 1776).
Marco Eigenmann (🇨🇭 SUI, 1771) won with 3.5/7, ahead of Gianin Nicola Richter (3.5) and Fernando Giraudo (3.0). Eigenmann won on tie-break after catching the field in the final round.
The biggest upset came in round 7: Elie Dinerchtein (1520) beat Robert Mollet (1760), a +240-point gap.
Location
🇨🇭Zurich, Switzerland
Dates
18 Oct 2025 → 19 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Federations · 2 represented
🇨🇭Switzerland×43
🇬🇧England×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R7; 2 players tied at 3.5/7, decided on Buchholz. Title race narrowed from 22 co-leaders at R4 to 2 at the finish.
Co-leaders
61
61
61
22
7
2
2
R7 · TIEBREAK CLUSTER
2 players finish on 3.5/7. Eigenmann takes the title on Buchholz Cut1 (6.0).
R5–R7 · WIN STREAK
Marco Eigenmann won 3 in a row (R5–R7).
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Eigenmann, Marco | 1771 | SUI | F | F | F | =31N | +47B | +36N | +6N | 3.5 | 6.0 | 6.0 | 5.25 | 2515 | +8.4 |
| 2 | Richter, Gianin Nicola | 0 | SUI | F | F | F | +22N | =?N | +37B | +23N | 3.5 | 5.0 | 5.0 | 5.00 | 1691 | 0.0 |
| 3 | Giraudo, Fernando | 1482 | SUI | F | F | F | +5B | =4N | +32N | =19B | 3.0 | 10.0 | 10.0 | 7.25 | 1862 | +78.4 |
| 4 | Guggisberg, Sebastian | 1623 | SUI | F | F | F | +33N | =3B | =16N | +13B | 3.0 | 10.0 | 10.0 | 7.25 | 1744 | +19.2 |
| 5 | Amstalden, Julian | 1639 | SUI | F | F | F | −3N | +33B | +12N | +31B | 3.0 | 9.0 | 9.0 | 6.00 | 1445 | -20.0 |
| 6 | Huettinger, Jonathan | 1715 | SUI | F | F | F | +40N | +20B | +31N | −1B | 3.0 | 8.0 | 8.0 | 4.50 | 1762 | +7.6 |
| 7 | Klein, Michael | 1639 | SUI | F | F | F | +38N | −11B | +18N | +36B | 3.0 | 7.5 | 7.5 | 4.50 | 2293 | +6.0 |
| 8 | Stalder, Daniel | 1655 | SUI | F | F | F | +51B | +14N | −20B | +28N | 3.0 | 7.0 | 7.0 | 5.00 | 1560 | -5.2 |
| 9 | Cavigelli, Jonas | 1612 | SUI | F | F | F | +30B | =18N | +44B | =32B | 3.0 | 7.0 | 7.0 | 5.00 | 1648 | +2.0 |
| 10 | Ram, Sanjay | 1630 | SUI | F | F | F | +39B | +35N | =17B | =15B | 3.0 | 7.0 | 7.0 | 4.50 | 1717 | +9.6 |
| 11 | Berrada, Abel | 0 | SUI | F | F | F | +?B | +7N | −15N | +39B | 3.0 | 6.5 | 6.5 | 4.00 | 1703 | 0.0 |
| 12 | Roethlin, Lara | 1407 | SUI | F | F | F | +48B | +24N | −5B | +37N | 3.0 | 6.0 | 6.0 | 3.00 | 1749 | +52.8 |
| 13 | Keller, Mike | 1633 | SUI | F | F | F | +41B | +49N | +21B | −4N | 3.0 | 6.0 | 6.0 | 3.00 | 1572 | -6.4 |
| 14 | Gremaud, Logan | 1554 | SUI | F | F | F | +43B | −8B | +49N | +22B | 3.0 | 6.0 | 6.0 | 3.00 | 1666 | +12.4 |
| 15 | Unsworth, Ruben | 1776 | SUI | F | F | F | F | +16B | +11B | =10N | 2.5 | 9.5 | 9.5 | 7.00 | 1880 | +10.4 |
| 16 | Ram, Karthik | 1744 | SUI | F | F | F | +47B | −15N | =4B | +20N | 2.5 | 8.0 | 8.0 | 4.00 | 1654 | -14.4 |
| 17 | Miro Hoppe, Nils | 1658 | SUI | F | F | F | =32N | +21B | =10N | =35N | 2.5 | 7.5 | 7.5 | 4.75 | 1724 | +10.4 |
| 18 | Frasseck, Lars | 0 | SUI | F | F | F | +?N | =9B | −7B | +38N | 2.5 | 7.0 | 7.0 | 2.50 | 1582 | 0.0 |
| 19 | Stolper, Felix | 1764 | SUI | F | F | F | =36B | +39N | =35B | =3N | 2.5 | 6.0 | 6.0 | 3.50 | 1482 | -13.6 |
| 20 | Minacci, Matteo | 1564 | SUI | F | F | F | +23B | −6N | +8N | −16B | 2.0 | 10.5 | 10.5 | 5.00 | 1691 | +13.6 |
| 21 | Dinerchtein, Elie | 1520 | SUI | F | F | F | +24B | −17N | −13N | +25B | 2.0 | 9.5 | 9.5 | 4.00 | 1673 | +32.0 |
| 22 | Fuchs, Roman | 1678 | SUI | F | F | F | −2B | +29N | +42B | −14N | 2.0 | 9.5 | 9.5 | 3.00 | 755 | -26.8 |
| 23 | Sigg, David | 1650 | SUI | F | F | F | −20N | +27B | +40N | −2B | 2.0 | 8.5 | 8.5 | 3.00 | 1570 | -8.8 |
| 24 | Hally, Ewan | 1640 | SUI | F | F | F | −21N | −12B | +26N | +47B | 2.0 | 7.5 | 7.5 | 2.50 | 664 | -58.0 |
| 25 | Mollet, Robert | 1760 | SUI | F | F | F | +26N | −40B | +41N | −21N | 2.0 | 6.0 | 6.0 | 3.00 | 748 | -30.8 |
| 26 | FIDE 1378180 | 0 | — | F | F | F | −25B | +50N | −24B | +43N | 2.0 | 5.0 | 5.0 | 1.00 | 900 | 0.0 |
| 27 | Blaser, Beatrice | 0 | SUI | F | F | F | +50B | −23N | −33B | +42N | 2.0 | 4.5 | 4.5 | 1.00 | 850 | 0.0 |
| 28 | Matsokis Arroyo, Nikolaos | 0 | SUI | F | F | F | =?N | +38B | =?N | −8B | 2.0 | 4.0 | 4.0 | 1.00 | 1562 | 0.0 |
| 29 | Mansour, Shahram | 0 | SUI | F | F | F | F | −22B | +48N | +41B | 2.0 | 3.0 | 3.0 | 1.00 | 878 | 0.0 |
| 30 | Kassube, Kevin | 0 | SUI | F | F | F | −9N | +?B | +?B | F | 2.0 | 3.0 | 3.0 | 0.00 | 1623 | 0.0 |
| 31 | Gisler, Jan | 0 | SUI | F | F | F | =1B | +37N | −6B | −5N | 1.5 | 10.5 | 10.5 | 2.75 | 1592 | 0.0 |
| 32 | Nikolic, Lazar | 1646 | SUI | F | F | F | =17B | =36N | −3B | =9N | 1.5 | 9.5 | 9.5 | 3.25 | 1459 | -30.4 |
| 33 | Kulatheepan, Aatavan | 0 | SUI | F | F | F | −4B | −5N | +27N | =?B | 1.5 | 8.0 | 8.0 | 2.00 | 1319 | 0.0 |
| 34 | Alkurdi, Laith | 0 | ENG | F | F | F | −?B | +?B | =47N | F | 1.5 | 0.5 | 0.5 | 0.25 | 1596 | 0.0 |
| 35 | Richner, Hans | 0 | SUI | F | F | F | F | −10B | =19N | =17B | 1.0 | 10.5 | 10.5 | 2.50 | 1559 | 0.0 |
| 36 | Krempke, Florian | 0 | SUI | F | F | F | =19N | =32B | −1B | −7N | 1.0 | 10.5 | 10.5 | 2.00 | 1513 | 0.0 |
| 37 | Galiash, Irina | 1587 | SUI | F | F | F | +44N | −31B | −2N | −12B | 1.0 | 9.0 | 9.0 | 1.00 | 607 | -29.6 |
| 38 | Na, Nick | 1492 | SUI | F | F | F | −7B | −28N | +45N | −18B | 1.0 | 8.5 | 8.5 | 1.00 | 840 | -12.0 |
| 39 | Shen, Mark | 0 | SUI | F | F | F | −10N | −19B | +?B | −11N | 1.0 | 8.5 | 8.5 | 0.00 | 1541 | 0.0 |
| 40 | Hochstrasser, Sylvain | 1576 | SUI | F | F | F | −6B | +25N | −23B | F | 1.0 | 7.0 | 7.0 | 2.00 | 1583 | +1.2 |
| 41 | Kakoyan, Narek | 0 | SUI | F | F | F | −13N | +48N | −25B | −29N | 1.0 | 7.0 | 7.0 | 0.00 | 896 | 0.0 |
| 42 | Kukkerabettu, Viraj | 0 | SUI | F | F | F | +45B | F | −22N | −27B | 1.0 | 5.0 | 5.0 | 1.00 | 878 | 0.0 |
| 43 | FIDE 1375555 | 0 | — | F | F | F | −14N | −?B | +50N | −26B | 1.0 | 5.0 | 5.0 | 0.00 | 734 | 0.0 |
| 44 | Straszak, Damian | 0 | SUI | F | F | F | −37B | +?N | −9N | −?B | 1.0 | 4.0 | 4.0 | 0.00 | 1417 | 0.0 |
| 45 | FIDE 1375288 | 0 | — | F | F | F | −42N | +46N | −38B | F | 1.0 | 3.0 | 3.0 | 1.00 | 693 | 0.0 |
| 46 | Eberle, Pema Garwang | 0 | SUI | F | F | F | −?N | −45B | F | +48B | 1.0 | 1.0 | 1.0 | 0.00 | 713 | 0.0 |
| 47 | FIDE 1373838 | 0 | — | F | F | F | −16N | −1N | =34B | −24N | 0.5 | 9.5 | 9.5 | 0.75 | 918 | 0.0 |
| 48 | FIDE 1376160 | 0 | — | F | F | F | −12N | −41B | −29B | −46N | 0.0 | 7.0 | 7.0 | 0.00 | 607 | 0.0 |
| 49 | FIDE 1377086 | 0 | — | F | F | F | F | −13B | −14B | −?N | 0.0 | 6.0 | 6.0 | 0.00 | 807 | 0.0 |
| 50 | FIDE 1375350 | 0 | — | F | F | F | −27N | −26B | −43B | −?N | 0.0 | 5.0 | 5.0 | 0.00 | 789 | 0.0 |
| 51 | Haeberli, Chantal | 0 | SUI | F | F | F | −8N | F | F | F | 0.0 | 4.0 | 4.0 | 0.00 | 854 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Giraudo, FernandoSUI+78.43.0 pts · #2
- 2Roethlin, LaraSUI+52.83.0 pts · #10
- 3Dinerchtein, ElieSUI+32.02.0 pts · #9
Top rating losers
- 1Hally, EwanSUI-58.02.0 pts · #48
- 2Mollet, RobertSUI-30.82.0 pts · #35
- 3Nikolic, LazarSUI-30.41.5 pts · #17
Biggest upsets
- R7+240 Elo gap
- R5+233 Elo gap
- R5+184 Elo gap