18th Annual Chicago Class - Class A
Open SwissStandard
48 players participated in this 5-round tournament, held from 18 Jul 2025 to 20 Jul 2025 in Wheeling, IL, United States. 4 federations represented. Top 10 Elo average was 1797, and top seed was Stephanie Ballom (🇺🇸 USA, 1893).
Jack Drucker (🇺🇸 USA, 1830) won with 4.5/5, ahead of Megan Chen (4.0) and Stephanie Ballom (4.0). Drucker clinched sole first place in the final round.
The biggest upset came in round 1: Aanya Parul Karthikeyan (1465) beat Andrew Cai (1697), a +232-point gap.
Location
🇺🇸Wheeling, IL, United States
Dates
18 Jul 2025 → 20 Jul 2025
Time control
Standard: 40 Moves in 80 Min. Del. 30 Sec. / / 30 Min. Del. 30 Sec.
System
Swiss · 5 rounds
Federations · 4 represented
🇺🇸United States of America×43
🇮🇳India×1
🇵🇱Poland×1
🇲🇽Mexico×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsJack Drucker led from R5; +0.5-point edge over the runner-up.
Co-leaders
13
3
1
1
1
R5 · LEADER CHANGE20 Jul
Jack Drucker takes the sole lead (4.5/5).
WIN STREAKS · 2 top finishers
Jack Drucker 3 wins (R3–R5)Megan Chen 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jack Drucker | * | — | 1 | — |
| 2Zachary W Nudo | — | * | — | ½ |
| 3Megan Chen | 0 | — | * | — |
| 4Stephanie Ballom | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Drucker, Jack | 1830 | USA | +20N | =7B | +22N | +8B | +2B | 4.5 | 12.0 | 14.0 | 12.50 | 2044 | +39.6 |
| 2 | Chen, Megan | 1674 | USA | +5B | +21B | +32N | +37B | −1N | 4.0 | 12.0 | 13.0 | 8.50 | 1926 | +26.2 |
| 3 | Ballom, Stephanie | 1893 | USA | +11B | =10N | +29B | +9N | =4N | 4.0 | 11.5 | 13.0 | 9.75 | 1916 | +2.4 |
| 4 | Nudo, Zachary W | 1778 | USA | +23B | =29N | +33B | +6N | =3B | 4.0 | 10.5 | 12.0 | 9.25 | 1894 | +13.0 |
| 5 | Pennington-Cross, Nicholas Lee | 1704 | USA | −2N | +31B | +20N | +12B | +37N | 4.0 | 10.0 | 11.0 | 7.00 | 1802 | +15.6 |
| 6 | Hanrahan, Paul Scott | 0 | USA | +32B | +30N | =9B | −4B | =8N | 3.0 | 11.0 | 12.5 | 5.75 | 1744 | 0.0 |
| 7 | Anand, Anirudh | 1635 | USA | +45B | =1N | =24B | +25B | −17N | 3.0 | 11.0 | 11.0 | 5.25 | 1782 | +30.8 |
| 8 | Hoffman, Jesse N | 1711 | USA | +39B | =38N | +43B | −1N | =6B | 3.0 | 9.5 | 10.0 | 3.50 | 1627 | -6.0 |
| 9 | Kabakov, Robert | 0 | USA | F | +15B | =6N | −3B | +21N | 2.5 | 11.5 | 11.5 | 6.00 | 1826 | 0.0 |
| 10 | Cheng, Gary | 0 | USA | +13B | =3B | =17N | =24N | F | 2.5 | 11.0 | 11.0 | 6.75 | 1827 | 0.0 |
| 11 | Lee, Merrill | 1657 | USA | −3N | +16B | =34B | =43N | =14B | 2.5 | 10.5 | 11.0 | 4.75 | 1715 | +14.8 |
| 12 | Hanninen, Carter James | 0 | USA | +14B | +25B | −37N | −5N | =34B | 2.5 | 10.0 | 11.0 | 5.25 | 1687 | 0.0 |
| 13 | Sridhar, Vinay | 1777 | USA | −10N | +23B | −21N | +47B | =22N | 2.5 | 8.5 | 8.5 | 3.00 | 1867 | +8.8 |
| 14 | Zurawski, Zachary | 1769 | POL | −12N | +41B | −42N | +20B | =11N | 2.5 | 8.0 | 9.0 | 4.25 | 1756 | -3.2 |
| 15 | Pham, Linda | 1759 | USA | F | −9N | =28B | +31N | +42B | 2.5 | 7.0 | 7.0 | 3.50 | 1901 | +14.4 |
| 16 | Hernandez Madrigal, Hector | 1702 | MEX | −30B | −11N | =36B | +46N | +29B | 2.5 | 7.0 | 7.0 | 2.25 | 1587 | -9.0 |
| 17 | Wallach, David R | 1753 | USA | F | F | =10B | +38N | +7B | 2.5 | 6.5 | 6.5 | 5.25 | 2322 | +18.0 |
| 18 | Thompson, Sean D | 1742 | USA | F | F | +30B | +29N | =33B | 2.5 | 4.5 | 4.5 | 3.75 | 1808 | +4.0 |
| 19 | Juric, Zvonko | 1771 | USA | F | =40B | −35N | +41N | +43B | 2.5 | 4.0 | 4.0 | 2.00 | 2434 | +12.8 |
| 20 | Stinson, Marcus | 1702 | USA | −1B | +39N | −5B | −14N | +30B | 2.0 | 12.5 | 13.5 | 2.50 | 968 | -24.8 |
| 21 | Akin, Doyle N | 0 | USA | +31B | −2N | +13B | −26N | −9B | 2.0 | 11.0 | 12.5 | 4.00 | 1591 | 0.0 |
| 22 | Wang, Chase | 1657 | USA | F | +45N | −1B | =27N | =13B | 2.0 | 9.0 | 9.0 | 2.25 | 1662 | -0.4 |
| 23 | Girish, Adarsh | 1682 | USA | −4N | −13N | +45B | +39B | F | 2.0 | 7.5 | 7.5 | 1.00 | 978 | -29.6 |
| 24 | Sapru, Agastya | 1806 | USA | F | F | =7N | =10B | +35N | 2.0 | 7.0 | 7.0 | 4.25 | 1635 | -8.8 |
| 25 | Chirukandath, Aswin | 1738 | USA | +41B | −12N | +48B | −7N | F | 2.0 | 6.5 | 6.5 | 1.00 | 1770 | +4.8 |
| 26 | Cai, Andrew | 1697 | USA | −29B | F | =38B | +21B | =32N | 2.0 | 6.0 | 6.0 | 3.25 | 1413 | -42.8 |
| 27 | Feygin, Alec | 1753 | USA | F | F | =40N | =22B | +38B | 2.0 | 4.0 | 4.0 | 2.50 | 1730 | -0.4 |
| 28 | Jayam, Srikar | 1757 | USA | F | F | =15N | =44B | +40N | 2.0 | 4.0 | 4.0 | 2.50 | 1790 | +3.6 |
| 29 | Parul Karthikeyan, Aanya | 1465 | USA | +26N | =4B | −3N | −18B | −16N | 1.5 | 13.0 | 15.0 | 4.00 | 1608 | +28.0 |
| 30 | Sahoo, Sheetansu Bhusan | 0 | USA | +16N | −6B | −18N | =36B | −20N | 1.5 | 10.0 | 11.5 | 3.25 | 1609 | 0.0 |
| 31 | Montella, James F | 0 | USA | −21N | −5N | +39B | −15B | =36N | 1.5 | 10.0 | 11.0 | 1.75 | 1427 | 0.0 |
| 32 | Wang, Gaofei | 1750 | USA | −6N | F | −2B | +42N | =26B | 1.5 | 10.0 | 10.0 | 2.00 | 1676 | -10.8 |
| 33 | Benedek, Roy | 1764 | USA | F | F | −4N | +40B | =18N | 1.5 | 7.5 | 7.5 | 2.25 | 1568 | -10.2 |
| 34 | Bafia, Nathaniel | 1569 | USA | F | F | =11N | =35B | =12N | 1.5 | 6.5 | 6.5 | 3.25 | 1657 | +4.8 |
| 35 | Sripada, Vishnu | 0 | USA | F | F | +19B | =34N | −24B | 1.5 | 6.0 | 6.0 | 3.25 | 1715 | 0.0 |
| 36 | Bao, Ronny | 1638 | USA | F | F | =16N | =30N | =31B | 1.5 | 5.5 | 5.5 | 2.75 | 1702 | +3.6 |
| 37 | Pothabathula, Rahul S | 1656 | USA | F | F | +12B | −2N | −5B | 1.0 | 10.5 | 10.5 | 2.50 | 889 | -36.0 |
| 38 | Avanish Ram Amarnath | 1408 | IND | F | =8B | =26N | −17B | −27N | 1.0 | 9.5 | 9.5 | 2.50 | 1535 | +19.2 |
| 39 | Pullabhotla, Aditya | 0 | USA | −8N | −20B | −31N | −23N | +46B | 1.0 | 8.5 | 8.5 | 0.00 | 898 | 0.0 |
| 40 | Tang, Emily Jiaying | 0 | USA | F | =19N | =27B | −33N | −28B | 1.0 | 8.0 | 8.0 | 2.25 | 1568 | 0.0 |
| 41 | Emanuelson, Ethan | 1626 | USA | −25N | −14N | +46B | −19B | F | 1.0 | 7.0 | 7.0 | 0.00 | 959 | -38.8 |
| 42 | Vanama, Agastya Chakravarthy | 1658 | USA | F | F | +14B | −32B | −15N | 1.0 | 6.5 | 6.5 | 2.50 | 1632 | -3.6 |
| 43 | Nikhil, Nirav | 1642 | USA | F | F | −8N | =11B | −19N | 0.5 | 8.0 | 8.0 | 1.25 | 1440 | -28.4 |
| 44 | Zhang, Brian Qixuan | 1821 | USA | F | F | F | =28N | F | 0.5 | 2.0 | 2.0 | 1.00 | 1757 | -3.6 |
| 45 | Asner, Marcus A | 0 | USA | −7N | −22B | −23N | F | F | 0.0 | 7.0 | 7.0 | 0.00 | 861 | 0.0 |
| 46 | FIDE 174095753 | 0 | — | F | F | −41N | −16B | −39N | 0.0 | 4.5 | 4.5 | 0.00 | 864 | 0.0 |
| 47 | FIDE 39982483 | 0 | — | F | F | F | −13N | F | 0.0 | 2.5 | 2.5 | 0.00 | 977 | 0.0 |
| 48 | Sundaram, Senthil K | 1675 | USA | F | F | −25N | F | F | 0.0 | 2.0 | 2.0 | 0.00 | 938 | -16.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Drucker, JackUSA+39.64.5 pts · #1
- 2Anand, AnirudhUSA+30.83.0 pts · #10
- 3Parul Karthikeyan, AanyaUSA+28.01.5 pts · #20
Top rating losers
- 1Cai, AndrewUSA-42.82.0 pts · #28
- 2Emanuelson, EthanUSA-38.81.0 pts · #42
- 3Pothabathula, Rahul SUSA-36.01.0 pts · #47
Biggest upsets
- R1+232 Elo gap
- R3+111 Elo gap
- R4+103 Elo gap