2025 Illinois Open - U2100
Open SwissStandard
71 players participated in this 7-round tournament, held from 29 Aug 2025 to 01 Sept 2025 in Lisle, IL, United States. 3 federations represented. Top 10 Elo average was 1868, and top seed was Andrey Skorobogatykh (🇷🇺 RUS, 1920).
Andrey Skorobogatykh (🇷🇺 RUS, 1920) won with 6.5/7, ahead of Aarav Karthik (6.0) and Samuel Eli Tugendhaft (5.0). Skorobogatykh shared the lead from round 5 and broke clear in the final round.
The biggest upset came in round 2: Abhi Majumdar (1527) beat Emil Sadykhov (1759), a +232-point gap.
Location
🇺🇸Lisle, IL, United States
Dates
29 Aug 2025 → 01 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Federations · 3 represented
🇺🇸United States of America×67
🇮🇳India×1
🇷🇺Russia×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsAndrey Skorobogatykh led from R7; +0.5-point edge over the runner-up.
Co-leaders
13
6
3
1
3
2
1
R7 · LEADER CHANGE01 Sept
Andrey Skorobogatykh takes the sole lead (6.5/7).
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Andrey Skorobogatykh drew with Aarav Karthik (Black).
WIN STREAKS · 3 top finishers
Andrey Skorobogatykh 4 wins (R4–R7)Aarav Karthik 3 wins (R4–R6)Samuel Eli Tugendhaft 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Andrey Skorobogatykh | * | ½ | 1 | — |
| 2Aarav Karthik | ½ | * | — | — |
| 3Samuel Eli Tugendhaft | 0 | — | * | — |
| 4Marcus Stinson | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Skorobogatykh, Andrey | 1920 | RUS | +39N | +20B | =2N | +6B | +36N | +5B | +3N | 6.5 | 26.0 | 28.5 | 25.50 | 2107 | +18.0 |
| 2 | Karthik, Aarav | 1766 | USA | +37N | +10B | =1B | +65N | +23B | +27N | =7B | 6.0 | 23.5 | 24.5 | 19.00 | 2013 | +61.6 |
| 3 | Tugendhaft, Samuel Eli | 1760 | USA | +30B | +12N | +49B | −5N | +57B | +15N | −1B | 5.0 | 24.0 | 25.5 | 14.50 | 1823 | +26.8 |
| 4 | Stinson, Marcus | 1677 | USA | −34B | =24N | +69B | +51N | =19B | +23N | +11B | 5.0 | 18.0 | 18.5 | 12.75 | 2189 | +59.4 |
| 5 | Nudo, Zachary W | 1791 | USA | +71N | +16B | +17N | +3B | =27B | −1N | −8B | 4.5 | 26.0 | 26.0 | 13.50 | 1908 | +22.8 |
| 6 | Cai, Andrew | 1694 | USA | +67B | +34N | +46B | −1N | =48B | =36B | =22N | 4.5 | 19.0 | 19.5 | 9.00 | 1784 | +18.4 |
| 7 | Turba, Timur | 1703 | USA | F | F | +58B | +22N | +46B | +13B | =2N | 4.5 | 17.0 | 17.0 | 14.00 | 2074 | +56.0 |
| 8 | Benedek, Roy | 1754 | USA | F | F | =40N | +47B | +16N | +17B | +5N | 4.5 | 16.0 | 16.0 | 14.75 | 2572 | +42.2 |
| 9 | Awasthi, Ghanishth Prabhakar | 0 | USA | F | F | +?B | +24N | +10B | =57N | +16N | 4.5 | 12.0 | 12.0 | 11.25 | 1747 | 0.0 |
| 10 | Hanninen, Carter James | 1667 | USA | +41B | −2N | −13N | +56B | −9N | +59B | +46N | 4.0 | 20.5 | 22.0 | 7.50 | 1732 | +14.0 |
| 11 | Sharma, Aarav | 1765 | USA | =24B | +69N | +51B | =48N | −13N | +26B | −4N | 4.0 | 19.0 | 19.5 | 8.00 | 1844 | +27.2 |
| 12 | Avanish Ram Amarnath | 1427 | IND | +35N | −3B | =47N | +40B | −45B | =62N | +29N | 4.0 | 17.5 | 19.0 | 9.75 | 1476 | +3.2 |
| 13 | Elgat, Adam | 1877 | USA | F | F | +10B | +38N | +11B | −7N | +49B | 4.0 | 17.0 | 17.0 | 12.50 | 1925 | +10.8 |
| 14 | Ruiz, Emmanuel | 1738 | USA | =47N | −18B | =35N | +60B | +29N | +46B | F | 4.0 | 14.5 | 14.5 | 8.75 | 1862 | +6.4 |
| 15 | Bao, Ronny | 1643 | USA | F | F | +41B | +64B | +42N | −3B | +45N | 4.0 | 13.5 | 13.5 | 8.50 | 1920 | +57.6 |
| 16 | Ellis, James | 1801 | USA | +48B | −5N | =43B | +68N | −8B | +28N | −9B | 3.5 | 21.0 | 21.5 | 6.75 | 1786 | -2.2 |
| 17 | Elferachi, Said | 1918 | USA | +31B | +38N | −5B | =49N | +28B | −8N | F | 3.5 | 19.5 | 19.5 | 9.50 | 1714 | -25.6 |
| 18 | Korampally, Nirvan | 0 | USA | =21B | +14N | =19B | −43N | =38B | +52N | −23B | 3.5 | 19.0 | 21.0 | 10.75 | 1762 | 0.0 |
| 19 | Rajkumar, Sachit Srinivas | 1897 | USA | F | +26B | =18N | =20B | =4N | +44B | F | 3.5 | 17.5 | 17.5 | 11.50 | 1868 | -4.8 |
| 20 | Girish, Adarsh | 1652 | USA | +25B | −1N | +56B | =19N | +43B | F | F | 3.5 | 17.0 | 17.0 | 8.75 | 1863 | +31.6 |
| 21 | Cheng, Gary | 1763 | USA | =18N | −23B | =26N | +61B | =32N | +39B | F | 3.5 | 16.5 | 16.5 | 8.75 | 1695 | -14.4 |
| 22 | Simpson, Matthew | 0 | USA | F | F | +50N | −7B | +?N | +54B | =6B | 3.5 | 13.0 | 13.0 | 6.25 | 1764 | 0.0 |
| 23 | Jing, Aaron C | 1843 | USA | F | +21N | F | +44B | −2N | −4B | +18N | 3.0 | 20.5 | 20.5 | 9.50 | 1725 | -12.8 |
| 24 | Webb, Wheaton William | 0 | USA | =11N | =4B | −54N | −9B | −25N | +68B | +56N | 3.0 | 20.0 | 20.5 | 6.50 | 1599 | -18.8 |
| 25 | FIDE 39992071 | 0 | — | −20N | +37B | −28N | −58N | +24B | −29B | +67N | 3.0 | 16.5 | 17.0 | 6.00 | 892 | 0.0 |
| 26 | Tang, Emily Jiaying | 1675 | USA | F | −19N | =21B | +63N | +52B | −11N | =44B | 3.0 | 16.5 | 16.5 | 6.00 | 1738 | +19.6 |
| 27 | Silvestre, Lucas | 1733 | USA | F | F | +64N | +42B | =5N | −2B | =48N | 3.0 | 16.0 | 16.0 | 6.75 | 1884 | +42.0 |
| 28 | Davenport, Alan Lee | 1732 | USA | +63B | −46N | +25B | F | −17N | −16B | +61N | 3.0 | 14.5 | 14.5 | 5.50 | 1673 | -16.4 |
| 29 | Fei, Ryun | 0 | USA | F | F | +?B | +41N | −14B | +25N | −12B | 3.0 | 13.5 | 13.5 | 5.50 | 1615 | 0.0 |
| 30 | Wang, Grace Ofia Nuoyi | 1603 | USA | −3N | −35B | +71N | +50B | +64N | −42B | F | 3.0 | 13.0 | 13.0 | 3.00 | 1785 | +38.0 |
| 31 | Robertson, Luke | 0 | USA | −17N | −50B | −37N | F | +68B | +35B | +64N | 3.0 | 12.0 | 12.0 | 4.00 | 1834 | 0.0 |
| 32 | Manimaran, Shivani | 1674 | USA | F | F | +63B | −46N | =21B | +40N | =65N | 3.0 | 10.0 | 10.0 | 5.75 | 1728 | +8.8 |
| 33 | Kabakov, Robert | 0 | USA | F | F | +53B | −62N | +47B | +38N | F | 3.0 | 8.0 | 8.0 | 6.50 | 2425 | +26.0 |
| 34 | Correa, Eduardo | 0 | USA | +4N | −6B | −44N | =39B | −40N | =67B | =59N | 2.5 | 18.5 | 19.0 | 7.25 | 1564 | 0.0 |
| 35 | Todi, Ayaan | 0 | USA | −12B | +30N | =14B | −55N | =51B | −31N | =60B | 2.5 | 18.0 | 19.5 | 6.75 | 1642 | 0.0 |
| 36 | Bafia, Nathaniel | 1574 | USA | F | F | =48B | +45N | −1B | =6N | =42N | 2.5 | 18.0 | 18.0 | 7.00 | 1755 | +30.4 |
| 37 | Turziak, Justin | 0 | USA | −2B | −25N | +31B | −52N | −56N | +63B | =53N | 2.5 | 17.5 | 18.5 | 5.00 | 1567 | 0.0 |
| 38 | Anand, Anirudh | 1672 | USA | +50N | −17B | +60N | −13B | =18N | −33B | F | 2.5 | 17.5 | 17.5 | 5.25 | 1097 | -17.6 |
| 39 | Zhan, Amy | 0 | USA | −1B | −63N | +59B | =34N | +53B | −21N | F | 2.5 | 17.0 | 17.0 | 4.75 | 982 | -49.6 |
| 40 | Kota, Arjun | 0 | USA | F | F | =8B | −12N | +34B | −32B | +58N | 2.5 | 15.5 | 15.5 | 6.25 | 1345 | 0.0 |
| 41 | Majumdar, Abhi | 1527 | USA | −10N | +71B | −15N | −29B | −61N | =50N | +63B | 2.5 | 15.5 | 15.5 | 2.00 | 1591 | +16.0 |
| 42 | Currah, Azeem Anwar | 1872 | USA | F | F | +57B | −27N | −15B | +30N | =36B | 2.5 | 14.0 | 14.0 | 5.75 | 1641 | -57.6 |
| 43 | Pham, Linda | 1773 | USA | F | =47B | =16N | +18B | −20N | =65B | F | 2.5 | 13.5 | 13.5 | 6.75 | 1552 | -34.8 |
| 44 | Jin, Evan Y | 1696 | USA | F | F | +34B | −23N | +58B | −19N | =26N | 2.5 | 13.5 | 13.5 | 5.50 | 1532 | -22.8 |
| 45 | Ruiz, Antonio | 0 | USA | F | F | +68N | −36B | +12N | =49N | −15B | 2.5 | 13.0 | 13.0 | 5.50 | 1479 | 0.0 |
| 46 | Sax, Robert | 1759 | USA | F | +28B | −6N | +32B | −7N | −14N | −10B | 2.0 | 23.0 | 23.0 | 6.00 | 1576 | -29.8 |
| 47 | Jadhav, Prajwal | 1582 | USA | =14B | =43N | =12B | −8N | −33N | =53B | −52B | 2.0 | 20.0 | 22.0 | 6.25 | 1519 | -16.4 |
| 48 | Anderson, Aaron J | 1882 | USA | −16N | F | =36N | =11B | =6N | F | =27B | 2.0 | 17.5 | 17.5 | 7.00 | 1641 | -62.8 |
| 49 | Pothabathula, Rahul S | 1620 | USA | F | F | −3N | =17B | +55N | =45B | −13N | 2.0 | 17.0 | 17.0 | 5.00 | 1578 | -5.6 |
| 50 | Saran, Angad | 0 | USA | −38B | +31N | −22B | −30N | −59N | =41B | =68N | 2.0 | 16.0 | 16.5 | 4.50 | 1327 | 0.0 |
| 51 | Venkatasubba, Krishna | 1800 | USA | F | +70B | −11N | −4B | =35N | =56B | F | 2.0 | 13.5 | 13.5 | 2.50 | 1626 | -28.4 |
| 52 | Wang, Gaofei | 1647 | USA | F | F | −66N | +37B | −26N | −18B | +47N | 2.0 | 12.0 | 12.0 | 4.50 | 1577 | -12.0 |
| 53 | FIDE 39934594 | 0 | — | F | F | −33N | +67B | −39N | =47N | =37B | 2.0 | 10.5 | 10.5 | 2.75 | 1578 | 0.0 |
| 54 | Parthasarathy, Siddharth | 1730 | USA | F | F | +24B | −57N | +62B | −22N | F | 2.0 | 9.5 | 9.5 | 4.50 | 854 | -24.0 |
| 55 | Whites, Malcolm Charles | 0 | USA | F | F | +67N | +35B | −49B | F | F | 2.0 | 5.0 | 5.0 | 3.00 | 820 | 0.0 |
| 56 | Advani, Sanjay | 0 | USA | F | F | −20N | −10N | +37B | =51N | −24B | 1.5 | 15.0 | 15.0 | 3.50 | 1433 | 0.0 |
| 57 | Vanama, Agastya Chakravarthy | 1654 | USA | F | F | −42N | +54B | −3N | =9B | F | 1.5 | 14.0 | 14.0 | 4.25 | 1662 | +0.8 |
| 58 | Sahoo, Sheetansu Bhusan | 0 | USA | F | F | −7N | +25B | −44N | =61B | −40B | 1.5 | 14.0 | 14.0 | 3.75 | 1388 | 0.0 |
| 59 | Hosomizu, Kyle | 0 | USA | F | F | −39N | F | +50B | −10N | =34B | 1.5 | 11.0 | 11.0 | 3.25 | 867 | 0.0 |
| 60 | Saha, Anisha | 0 | USA | F | F | −38B | −14N | +63B | −64B | =35N | 1.5 | 11.0 | 11.0 | 2.25 | 1513 | 0.0 |
| 61 | Munkhsuld, Bishrelt | 1586 | USA | F | F | F | −21N | +41B | =58N | −28B | 1.5 | 10.5 | 10.5 | 3.25 | 1549 | -6.4 |
| 62 | Annapragada, Srivastav | 0 | USA | F | F | F | +33B | −54N | =12B | F | 1.5 | 9.0 | 9.0 | 5.00 | 1386 | -27.6 |
| 63 | Kantem, Samanvi | 1662 | USA | −28N | +39B | −32N | −26B | −60N | −37N | −41N | 1.0 | 16.5 | 18.0 | 2.50 | 852 | -81.6 |
| 64 | Kuten, Samuel | 1750 | USA | F | F | −27B | −15N | −30B | +60N | −31B | 1.0 | 14.5 | 14.5 | 1.50 | 859 | -75.2 |
| 65 | Hough, Matthew Lucas | 0 | USA | F | F | F | −2B | F | =43N | =32B | 1.0 | 11.5 | 11.5 | 2.75 | 1613 | 0.0 |
| 66 | Keely-Walker, Alastair William | 1854 | USA | F | F | +52B | F | F | F | F | 1.0 | 2.0 | 2.0 | 2.00 | 2447 | +9.6 |
| 67 | Jackson, Jordan A | 0 | USA | −6N | F | −55B | −53N | F | =34N | −25B | 0.5 | 14.0 | 14.0 | 1.25 | 894 | 0.0 |
| 68 | Kumar, Advik | 0 | USA | F | F | −45B | −16B | −31N | −24N | =50B | 0.5 | 14.0 | 14.0 | 1.00 | 1001 | 0.0 |
| 69 | Oleksa, Max | 1809 | USA | =70N | −11B | −4N | F | F | F | F | 0.5 | 9.5 | 9.5 | 0.25 | 1478 | -49.6 |
| 70 | Craigmile, Charles | 1810 | USA | =69B | −51N | F | F | F | F | F | 0.5 | 2.5 | 2.5 | 0.25 | 1612 | -10.2 |
| 71 | Sadykhov, Emil | 1759 | USA | −5B | −41N | −30B | F | F | F | F | 0.0 | 10.0 | 10.0 | 0.00 | 840 | -78.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Karthik, AaravUSA+61.66.0 pts · #6
- 2Stinson, MarcusUSA+59.45.0 pts · #4
- 3Bao, RonnyUSA+57.64.0 pts · #13
Top rating losers
- 1Kantem, SamanviUSA-81.61.0 pts · #69
- 2Sadykhov, EmilUSA-78.40.0 pts · #67
- 3Kuten, SamuelUSA-75.21.0 pts · #70
Biggest upsets
- R2+232 Elo gap
- R5+229 Elo gap
- R6+174 Elo gap