Bundesturnier Sen-2
Open SwissStandard
23 players participated in this 5-round tournament, held from 14 May 2026 to 17 May 2026 in Basel, Switzerland. 4 federations represented. Top 10 Elo average was 1690, and top seed was Slavoljub Andjelkovic (🇨🇠SUI, 1730).
Jean-Louis Mackels (🇫🇷 FRA, 1713) won with 5.0/5, ahead of Slavoljub Andjelkovic (4.5) and Nicolas Thomas (3.5). Mackels won solo starting round 4.
The biggest upset came in round 5: Franz Both (1555) beat Werner Koch (1717), a +162-point gap.
Location
🇨ðŸ‡Basel, Switzerland
Dates
14 May 2026 → 17 May 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Federations · 4 represented
🇨ðŸ‡Switzerland×20
🇫🇷France×1
🇱🇮Liechtenstein×1
🇩🇪Germany×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsJean-Louis Mackels led from R4; +0.5-point edge over the runner-up.
Co-leaders
8
4
2
1
1
R4–R5 · LEAD HELD
Jean-Louis Mackels held the sole lead from R4 through R5 without losing it.
R1–R5 · WIN STREAK
Jean-Louis Mackels won 5 in a row (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jean-Louis Mackels | * | — | 1 | — |
| 2Slavoljub Andjelkovic | — | * | — | 1 |
| 3Nicolas Thomas | 0 | — | * | — |
| 4Heinz Laska | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mackels, Jean-Louis | 1713 | FRA | +14B | +10N | +3B | +4N | +9B | 5.0 | 11.5 | 14.0 | 14.00 | 2446 | +32.8 |
| 2 | Andjelkovic, Slavoljub | 1730 | SUI | +13B | +15N | =9B | +8N | +5B | 4.5 | 10.5 | 12.5 | 11.25 | 2004 | +27.4 |
| 3 | Thomas, Nicolas | 1657 | SUI | =18N | +11B | −1N | +12B | +4B | 3.5 | 13.0 | 14.5 | 8.75 | 1716 | +12.4 |
| 4 | Dinerchtein, Boris | 0 | SUI | +20B | +7N | +5B | −1B | −3N | 3.0 | 14.5 | 15.5 | 7.00 | 1697 | 0.0 |
| 5 | Laska, Heinz | 1712 | SUI | +12N | +6B | −4N | +15B | −2N | 3.0 | 13.0 | 15.0 | 7.50 | 1825 | +11.4 |
| 6 | Klaus, Ortwin | 1610 | SUI | +23B | −5N | =8B | =11B | +17N | 3.0 | 10.0 | 10.5 | 5.00 | 1674 | +18.0 |
| 7 | Corbat, Philippe (19925) | 1699 | SUI | =16N | −4B | =18N | +22B | +20N | 3.0 | 7.5 | 8.5 | 3.75 | 1737 | +3.6 |
| 8 | Winter, Martin | 1534 | SUI | =11N | +16B | =6N | −2B | =10B | 2.5 | 12.5 | 14.5 | 6.00 | 1644 | +28.8 |
| 9 | Zimmermann, Stefan SUI | 1711 | SUI | F | +17B | =2N | +20B | −1N | 2.5 | 12.5 | 12.5 | 5.25 | 1754 | +4.2 |
| 10 | Stalder, Heinz | 1631 | SUI | +21N | −1B | =12N | =17B | =8N | 2.5 | 12.0 | 13.0 | 4.50 | 1577 | -7.2 |
| 11 | Frey, Rudolf | 1699 | GER | =8B | −3N | +14B | =6N | =13B | 2.5 | 11.5 | 14.0 | 6.50 | 1597 | -14.0 |
| 12 | Both, Franz | 1555 | SUI | −5B | +23N | =10B | −3N | +19B | 2.5 | 10.5 | 11.0 | 3.25 | 1638 | +11.0 |
| 13 | Meier, Herbert | 1600 | SUI | −2N | =22B | =16N | +21B | =11N | 2.5 | 10.0 | 11.0 | 3.75 | 1596 | -0.4 |
| 14 | Halm, Bruno | 1585 | SUI | −1N | +21B | −11N | =18B | +23N | 2.5 | 10.0 | 10.5 | 2.25 | 1579 | -0.8 |
| 15 | Schaedler, Gerold Heinz | 1631 | LIE | +22B | −2B | =17N | −5N | =16B | 2.0 | 11.5 | 12.5 | 3.00 | 1545 | -11.8 |
| 16 | Rothenfluh, Marcel | 1550 | SUI | =7B | −8N | =13B | =19N | =15N | 2.0 | 10.0 | 11.5 | 4.50 | 1564 | +1.6 |
| 17 | Schuler, Agatha | 1588 | SUI | +19B | −9N | =15B | =10N | −6B | 2.0 | 10.0 | 11.5 | 3.75 | 1588 | -0.2 |
| 18 | Wipf, Armin | 1516 | SUI | =3B | −19N | =7B | =14N | −21N | 1.5 | 10.5 | 11.5 | 4.50 | 1481 | -4.8 |
| 19 | Koch, Werner | 1717 | SUI | −17N | +18B | −20N | =16B | −12N | 1.5 | 8.0 | 9.0 | 2.50 | 1414 | -40.2 |
| 20 | Birbaum, Hans | 1604 | SUI | −4N | F | +19B | −9N | −7B | 1.0 | 10.0 | 10.0 | 1.50 | 1584 | -1.4 |
| 21 | Filli, Claude | 1494 | SUI | −10B | −14N | F | −13N | +18B | 1.0 | 9.0 | 9.0 | 1.50 | 1390 | -21.2 |
| 22 | Egli, Arnold | 1507 | SUI | −15N | =13N | =23B | −7N | F | 1.0 | 8.0 | 8.0 | 1.50 | 1408 | -9.8 |
| 23 | Koeppel, Paul | 1475 | SUI | −6N | −12B | =22N | F | −14B | 0.5 | 9.0 | 9.0 | 0.50 | 1242 | -40.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Mackels, Jean-LouisFRA+32.85.0 pts · #2
- 2Winter, MartinSUI+28.82.5 pts · #10
- 3Andjelkovic, SlavoljubSUI+27.44.5 pts · #1
Top rating losers
- 1Koeppel, PaulSUI-40.80.5 pts · #23
- 2Koch, WernerSUI-40.21.5 pts · #19
- 3Filli, ClaudeSUI-21.21.0 pts · #21
Biggest upsets
- R5+162 Elo gap
- R1+129 Elo gap
- R3+113 Elo gap