4th Rigo Janos Memorial Open
Open SwissStandard
39 players participated in this 9-round tournament, held from 21 Jun 2025 to 27 Jun 2025 in Balatonlelle, Hungary. 8 titled players from 8 federations. Top 10 Elo average was 2044, and top seed was Mariya Zubova (🇺🇦 UKR, WIM, 2120).
Vlad Petroff (🇷🇴 ROU, FM, 1971) won with 7.0/9, ahead of Jonas H Rasmussen (7.0) and Barnabas Apro (7.0). Petroff shared the lead from round 2, winning on tie-break.
The biggest upset came in round 9: Zsofia Bolla (1629) beat Luomeng Wang (1989), a +360-point gap.
Location
🇭🇺Balatonlelle, Hungary
Dates
21 Jun 2025 → 27 Jun 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 9 rounds
Titled players · 8
IM×1
FM×1
CM×1
WIM×1
WFM×2
WCM×2
Federations · 8 represented
🇭🇺Hungary×31
🇷🇴Romania×2
🇺🇦Ukraine×1
🇳🇴Norway×1
🇬🇧England×1
🇨🇭Switzerland×1
🇮🇱Israel×1
🇮🇳India×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsTight race until R9; 3 players tied at 7.0/9, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.
Co-leaders
12
3
4
2
1
1
3
1
3
R9 · TIEBREAK CLUSTER
3 players finish on 7.0/9. Petroff takes the title on Buchholz Cut1 (47.0).
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Jonas H Rasmussen drew with FM Vlad Petroff (White).
R4–R6 · WIN STREAK
FM Vlad Petroff won 3 in a row (R4–R6).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jonas H Rasmussen | * | ½ | ½ | — |
| 2FMVlad Petroff | ½ | * | 0 | ½ |
| 3Barnabas Apro | ½ | 1 | * | ½ |
| 4Marko Bardics | — | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Petroff, VladFM | 1971 | ROU | +30N | +9B | =2N | +6B | +11N | +8B | −3N | +7B | =4N | 7.0 | 47.0 | 50.5 | 37.00 | 2201 | +106.0 |
| 2 | Rasmussen, Jonas H | 1992 | NOR | +19B | +24N | =1B | +34N | =3B | =7N | +6N | =11B | +13B | 7.0 | 43.5 | 46.5 | 34.25 | 2194 | +45.8 |
| 3 | Apro, Barnabas | 2115 | HUN | =32N | +29B | =4N | +28B | =2N | +22B | +1B | =5N | +12B | 7.0 | 42.0 | 45.5 | 34.25 | 2174 | +26.8 |
| 4 | Bardics, Marko | 1970 | HUN | +21B | =27N | =3B | +18N | =12N | −6B | +22N | +8B | =1B | 6.0 | 43.0 | 46.5 | 29.75 | 2094 | +63.2 |
| 5 | Kossela, Peter | 1994 | HUN | =33N | +17B | −6N | =14B | +26N | =10B | +27N | =3B | +11N | 6.0 | 40.0 | 43.0 | 27.25 | 2078 | +41.2 |
| 6 | Albrecht, Akos | 2022 | HUN | +25B | =13N | +5B | −1N | +27B | +4N | −2B | =12N | =10N | 5.5 | 45.5 | 49.0 | 27.25 | 2050 | +7.6 |
| 7 | Pellicoro, Nathalie | 2021 | SUI | +26N | −34B | +29N | +9B | =8N | =2B | =11B | −1N | +17B | 5.5 | 42.0 | 45.0 | 26.25 | 2003 | -3.0 |
| 8 | Stembridge, Ed | 2041 | ENG | F | +33B | +20N | +24N | =7B | −1N | +17B | −4N | +18B | 5.5 | 39.0 | 39.0 | 23.25 | 2057 | +4.0 |
| 9 | Jokai, Bence | 1889 | HUN | +37B | −1N | +19B | −7N | =18B | −17N | +24B | +28N | +22B | 5.5 | 37.5 | 39.0 | 19.75 | 1978 | +47.2 |
| 10 | Zubova, MariyaWIM | 2120 | UKR | =23B | =31N | =27B | +25N | =34B | =5N | =12B | +15N | =6B | 5.5 | 36.5 | 39.5 | 24.25 | 1980 | -27.8 |
| 11 | Kahn, Evarth Dr.IM | 2053 | HUN | +20B | F | +23N | +13N | −1B | +14B | =7N | =2N | −5B | 5.0 | 44.0 | 44.0 | 24.75 | 2045 | -0.9 |
| 12 | Trajber, Daniel | 2039 | HUN | F | +21N | =25B | +31N | =4B | +34B | =10N | =6B | −3N | 5.0 | 39.0 | 39.0 | 21.50 | 2023 | -1.0 |
| 13 | Larion, IustinCM | 1962 | ROU | +35N | =6B | =22N | −11B | =28N | =29B | +16N | +14B | −2N | 5.0 | 38.5 | 41.0 | 20.75 | 1948 | -2.4 |
| 14 | Kovacs, RekaWFM | 1975 | HUN | =15B | =23N | =31B | =5N | +24B | −11N | +36B | −13N | +25B | 5.0 | 36.5 | 38.5 | 19.25 | 1901 | -30.8 |
| 15 | Kasa, Barnabas | 1764 | HUN | =14N | −22B | −17N | +32B | =20N | +35B | +34N | −10B | +33N | 5.0 | 33.0 | 35.5 | 16.75 | 1923 | +55.8 |
| 16 | Prakash Vaishnavi | 1702 | IND | F | F | +35N | =23B | +33B | =28N | −13B | +36N | +24B | 5.0 | 24.0 | 24.0 | 15.25 | 1969 | +48.8 |
| 17 | Jankovics, Emod | 1819 | HUN | =18B | −5N | +15B | +33N | −22N | +9B | −8N | +23B | −7N | 4.5 | 40.0 | 43.0 | 19.75 | 1934 | +52.8 |
| 18 | Hangyal, Anna | 2035 | HUN | =17N | +32B | =34N | −4B | =9N | =23B | =29N | +27B | −8N | 4.5 | 36.0 | 39.0 | 17.25 | 1890 | -51.0 |
| 19 | Dorner, Ilona | 1789 | HUN | −2N | +39B | −9N | =30B | −23N | +32B | =20N | =21B | +27N | 4.5 | 36.0 | 36.5 | 13.75 | 1784 | -3.6 |
| 20 | Kincses, EmmaWCM | 1819 | HUN | −11N | +35B | −8B | =21N | =15B | −36N | =19B | +38N | +30N | 4.5 | 32.5 | 34.0 | 14.50 | 1753 | -23.7 |
| 21 | Bolla, Zsofia | 1629 | HUN | −4N | −12B | +36N | =20B | =37B | =25N | =33B | =19N | +28B | 4.5 | 32.5 | 34.0 | 14.25 | 1813 | +77.2 |
| 22 | Fodor, Kornel | 2003 | HUN | =31B | +15N | =13B | =27N | +17B | −3N | −4B | =25N | −9N | 4.0 | 40.5 | 44.0 | 17.50 | 1846 | -37.0 |
| 23 | Pergel, Bence | 1863 | HUN | =10N | =14B | −11B | =16N | +19B | =18N | =28B | −17N | =26N | 4.0 | 38.0 | 41.5 | 18.25 | 1879 | +7.6 |
| 24 | Nemeth, Attila Janos | 1898 | HUN | +36N | −2B | +37N | −8B | −14N | +26B | −9N | +29B | −16N | 4.0 | 37.5 | 39.0 | 11.00 | 1770 | -27.2 |
| 25 | Gyorgy, Balazs | 1817 | HUN | −6N | +36B | =12N | −10B | =29N | =21B | +30N | =22B | −14N | 4.0 | 36.5 | 38.5 | 14.00 | 1830 | +4.0 |
| 26 | Illes-Nagy, Nora | 1817 | HUN | −7B | +38N | −28B | +37N | −5B | −24N | =31B | +35N | =23B | 4.0 | 30.5 | 32.0 | 9.25 | 1772 | -20.0 |
| 27 | Ruska, Zoltan | 1865 | HUN | +39N | =4B | =10N | =22B | −6N | +30B | −5B | −18N | −19B | 3.5 | 39.5 | 40.0 | 11.75 | 1816 | -11.0 |
| 28 | Wang, Luomeng | 1989 | HUN | −29N | +30B | +26N | −3N | =13B | =16B | =23N | −9B | −21N | 3.5 | 38.5 | 42.0 | 14.50 | 1752 | -103.7 |
| 29 | Berezovskii, ArinaWCM | 1787 | ISR | +28B | −3N | −7B | +39N | =25B | =13N | =18B | −24N | −32B | 3.5 | 37.0 | 37.5 | 10.75 | 1818 | +8.8 |
| 30 | Hangyal, Dora | 1725 | HUN | −1B | −28N | +38B | =19N | +31B | −27N | −25B | +39N | −20B | 3.5 | 32.0 | 32.5 | 7.75 | 1690 | -13.2 |
| 31 | Nagy, Lajos | 1801 | HUN | =22N | =10B | =14N | −12B | −30N | =37B | =26N | F | +36B | 3.5 | 30.5 | 30.5 | 12.00 | 1806 | -0.4 |
| 32 | Kiss, InezWFM | 1838 | HUN | =3B | −18N | −33B | −15N | +38B | −19N | F | +37B | +29N | 3.5 | 30.5 | 30.5 | 10.00 | 1761 | -34.4 |
| 33 | Kato, Bence Teodor | 1793 | HUN | =5B | −8N | +32N | −17B | −16N | +39B | =21N | F | −15B | 3.0 | 37.0 | 37.5 | 9.25 | 1669 | -48.4 |
| 34 | Szakolczai, Alex | 1937 | HUN | +38B | +7N | =18B | −2B | =10N | −12N | −15B | F | F | 3.0 | 37.0 | 37.0 | 12.00 | 1888 | -15.6 |
| 35 | Sopsits, Aron | 1619 | HUN | −13B | −20N | −16B | =38N | F | −15N | +39B | −26B | +37N | 2.5 | 27.0 | 27.0 | 2.75 | 1515 | -36.8 |
| 36 | Kiss, Villo | 1558 | HUN | −24B | −25N | −21B | F | +39N | +20B | −14N | −16B | −31N | 2.0 | 31.0 | 31.0 | 5.00 | 1494 | -18.8 |
| 37 | Kiralyhazi, Mate Ferenc | 1553 | HUN | −9N | F | −24B | −26B | =21N | =31N | =38B | −32N | −35B | 1.5 | 29.0 | 29.0 | 4.75 | 1510 | -20.4 |
| 38 | Bardics, Mirko Janos | 1597 | HUN | −34N | −26B | −30N | =35B | −32N | F | =37N | −20B | =39B | 1.5 | 23.0 | 23.0 | 2.25 | 1449 | -44.8 |
| 39 | Karadi, Dorian | 0 | HUN | −27B | −19N | F | −29B | −36B | −33N | −35N | −30B | =38N | 0.5 | 24.0 | 24.0 | 0.75 | 1273 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Petroff, VladFMROU+106.07.0 pts · #2
- 2Bolla, ZsofiaHUN+77.24.5 pts · #20
- 3Bardics, MarkoHUN+63.26.0 pts · #4
Top rating losers
- 1Wang, LuomengHUN-103.73.5 pts · #26
- 2Hangyal, AnnaHUN-51.04.5 pts · #19
- 3Kato, Bence TeodorHUN-48.43.0 pts · #34
Biggest upsets
- R9+360 Elo gap
- R6+261 Elo gap
- R1+202 Elo gap