Therwiler Afternoon Open TAO 2025 round 5
Open SwissStandard
16 players participated in this 5-round tournament, held on 10 Dec 2025 in Therwil, Switzerland. 2 federations represented. Top 10 Elo average was 1873, and top seed was Andrew Lumsdon (🇨🇭 SUI, 1959).
Bernhard Erb (🇨🇭 SUI, 1829) won with 1.0/5, ahead of Paul Erzinger (1.0) and Stephan Bonauer (1.0).
Location
🇨🇭Therwil, Switzerland
Dates
10 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Federations · 2 represented
🇨🇭Switzerland×15
🇩🇪Germany×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R5; 6 players tied at 1.0/5, decided on Buchholz.
Co-leaders
21
21
21
1
7
R5 · TIEBREAK CLUSTER
6 players finish on 1.0/5. Erb takes the title on Buchholz Cut1 (1.5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Stephan Bonauer | * | — | — | — |
| 2Peter Polanyi | — | * | — | — |
| 3Bernhard Erb | — | — | * | 0 |
| 4Paul Erzinger | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Erb, Bernhard | 1829 | SUI | F | F | F | +7N | −2B | 1.0 | 1.5 | 1.5 | 0.50 | 1837 | +1.2 |
| 2 | Erzinger, Paul | 1943 | SUI | F | F | F | F | +1N | 1.0 | 1.0 | 1.0 | 1.00 | 2614 | +13.6 |
| 3 | Bonauer, Stephan | 1678 | SUI | F | F | F | F | +15B | 1.0 | 0.0 | 0.0 | 0.00 | 2315 | +6.0 |
| 4 | Polanyi, Peter | 1891 | SUI | F | F | F | F | +13B | 1.0 | 0.0 | 0.0 | 0.00 | 2665 | +8.2 |
| 5 | Maitre, Fabien | 1812 | SUI | F | F | F | F | +16N | 1.0 | 0.0 | 0.0 | 0.00 | 2698 | +11.6 |
| 6 | Lumsdon, Andrew | 1959 | SUI | F | F | F | F | +14N | 1.0 | 0.0 | 0.0 | 0.00 | 2605 | +6.8 |
| 7 | Willimann, Philipp | 1750 | SUI | F | F | F | −1B | =10N | 0.5 | 1.5 | 1.5 | 0.25 | 1014 | -8.0 |
| 8 | Fankhauser, Martin | 0 | SUI | F | F | F | F | =11B | 0.5 | 0.5 | 0.5 | 0.25 | 1871 | +5.2 |
| 9 | Blickle, Michael | 1733 | SUI | F | F | F | F | =12B | 0.5 | 0.5 | 0.5 | 0.25 | 1816 | +6.0 |
| 10 | Mcillmurray, John | 0 | SUI | F | F | F | F | =7B | 0.5 | 0.5 | 0.5 | 0.25 | 1741 | 0.0 |
| 11 | Meier, Franz | 1878 | SUI | F | F | F | F | =8N | 0.5 | 0.5 | 0.5 | 0.25 | 1774 | -2.6 |
| 12 | Ledermann, Wolfgang | 1833 | SUI | F | F | F | F | =9N | 0.5 | 0.5 | 0.5 | 0.25 | 1703 | -3.0 |
| 13 | Lenders, Jean-Pierre | 1860 | SUI | F | F | F | F | −4N | 0.0 | 1.0 | 1.0 | 0.00 | 1129 | -8.2 |
| 14 | Spielmann, Beat | 1869 | SUI | F | F | F | F | −6B | 0.0 | 1.0 | 1.0 | 0.00 | 1122 | -6.8 |
| 15 | Arnold, Urs | 1577 | SUI | F | F | F | F | −3N | 0.0 | 1.0 | 1.0 | 0.00 | 868 | -12.0 |
| 16 | Locher, Helmut | 1853 | GER | F | F | F | F | −5B | 0.0 | 1.0 | 1.0 | 0.00 | 1044 | -11.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Erzinger, PaulSUI+13.61.0 pts · #4
- 2Maitre, FabienSUI+11.61.0 pts · #5
- 3Polanyi, PeterSUI+8.21.0 pts · #2
Top rating losers
- 1Arnold, UrsSUI-12.00.0 pts · #15
- 2Locher, HelmutGER-11.60.0 pts · #16
- 3Lenders, Jean-PierreSUI-8.20.0 pts · #12