30th Annual Mid-America Open - Major
Open SwissStandard
36 players participated in this 5-round tournament, held from 20 Mar 2026 to 22 Mar 2026 in St. Louis, MO, United States. 2 titled players. Top 10 Elo average was 2127, and top seed was Gabriel Petesch (🇺🇸 USA, FM, 2349).
Erik Tkachenko (🇺🇸 USA, 2035) won with 4.0/5, ahead of Luke O Hengen (4.0) and Ethan Kozower (3.5). Tkachenko won on tie-break after catching the field in the final round.
The biggest upset came in round 5: Srikar Jayam (1759) beat James McLaughlin (1929), a +170-point gap.
Location
🇺🇸St. Louis, MO, United States
Dates
20 Mar 2026 → 22 Mar 2026
Time control
Standard: 40 Moves in 80 Min. Del. 30 Sec. / / 30 Min. Del. 30 Sec.
System
Swiss · 5 rounds
Titled players · 2
FM×1
WCM×1
Federations · 1 represented
🇺🇸United States of America×35
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R2; 2 players tied at 4.0/5, decided on Buchholz.
Co-leaders
6
1
2
1
2
R4 · LEADER CHANGE22 Mar
Luke O Hengen takes the sole lead (3.5/4).
R5 · TIEBREAK CLUSTER
2 players finish on 4.0/5. Tkachenko takes the title on Buchholz Cut1 (9.5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Erik Tkachenko | * | — | — | — |
| 2Luke O Hengen | — | * | — | — |
| 3Ethan Kozower | — | — | * | ½ |
| 4Muthu Avaneesh Prem | — | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Tkachenko, Erik | 2035 | USA | +15B | +6N | −17N | +23B | +9N | 4.0 | 9.5 | 11.0 | 9.00 | 2255 | +26.8 |
| 2 | Hengen, Luke O | 1975 | USA | +16B | =22N | +11B | +9B | =17N | 4.0 | 9.0 | 10.5 | 8.75 | 2283 | +75.2 |
| 3 | Kozower, Ethan | 2081 | USA | +12N | =25B | =4N | +16B | =10B | 3.5 | 10.0 | 11.5 | 8.00 | 2132 | +6.8 |
| 4 | Prem, Muthu Avaneesh | 1948 | USA | =8B | +7N | =3B | −10N | +15B | 3.0 | 12.0 | 14.0 | 8.25 | 2084 | +36.4 |
| 5 | Baker, Aidan | 2105 | USA | =7B | =20N | +15B | +21N | −13B | 3.0 | 9.5 | 11.5 | 6.50 | 2069 | -8.0 |
| 6 | Gao, Wilson | 1998 | USA | +18N | −1B | =28B | =19N | +26N | 3.0 | 9.5 | 10.5 | 5.00 | 1963 | -4.0 |
| 7 | He, Alvin | 1965 | USA | =5N | −4B | +34N | +32B | =8B | 3.0 | 9.5 | 9.5 | 3.50 | 2041 | +21.6 |
| 8 | Troutman, Charles | 1963 | USA | =4N | −23B | +35N | +22B | =7N | 3.0 | 9.0 | 9.0 | 4.50 | 1951 | -1.0 |
| 9 | Gurumoorthi, Gurugrahan | 2024 | USA | =27N | +24B | +22B | −2N | −1B | 2.5 | 11.0 | 12.5 | 3.75 | 1944 | -21.6 |
| 10 | Magness, Trevor | 2145 | USA | F | F | +12N | +4B | =3N | 2.5 | 9.0 | 9.0 | 7.25 | 2257 | +7.6 |
| 11 | Kamesh, Vidyuth | 2003 | USA | =24N | +34B | −2N | =26B | =27N | 2.5 | 8.5 | 8.5 | 2.25 | 1894 | -28.8 |
| 12 | Shen, Edward | 1920 | USA | −3B | +33N | −10B | =29N | +24B | 2.5 | 8.5 | 8.5 | 2.00 | 1924 | 0.0 |
| 13 | Petesch, GabrielFM | 2349 | USA | F | F | +25N | =17B | +5N | 2.5 | 6.5 | 6.5 | 5.50 | 2399 | +4.8 |
| 14 | Boaz, Ben M | 1933 | USA | F | F | =19B | +25N | +18B | 2.5 | 5.5 | 5.5 | 4.50 | 2137 | +28.8 |
| 15 | Herman, Sara | 1906 | USA | −1N | +18B | −5N | +35B | −4N | 2.0 | 12.0 | 12.0 | 2.00 | 1865 | -5.8 |
| 16 | Seetharaman, Rakshith | 1942 | USA | −2N | +36N | +20B | −3N | −21B | 2.0 | 11.5 | 11.5 | 2.00 | 1763 | -36.8 |
| 17 | Paciorkowski, Lev | 2315 | USA | F | F | +1B | =13N | =2B | 2.0 | 10.5 | 10.5 | 7.25 | 2245 | -3.4 |
| 18 | Szpisjak, Steven | 1876 | USA | −6B | −15N | +30N | +28B | −14N | 2.0 | 8.5 | 9.5 | 2.00 | 1838 | -5.4 |
| 19 | Jayam, Srikar | 1759 | USA | F | F | =14N | =6B | +22N | 2.0 | 7.0 | 7.0 | 4.25 | 2078 | +50.0 |
| 20 | Zhou, Ryan | 1816 | USA | F | =5B | −16N | +33B | =23N | 2.0 | 6.5 | 6.5 | 2.25 | 1930 | +22.8 |
| 21 | Lee, Justin | 1949 | USA | F | F | +29N | −5B | +16N | 2.0 | 6.0 | 6.0 | 3.00 | 2041 | +15.6 |
| 22 | McLaughlin, James | 1929 | USA | +36B | =2B | −9N | −8N | −19B | 1.5 | 11.5 | 11.5 | 2.00 | 1608 | -29.6 |
| 23 | Royal Jr., Paul | 1831 | USA | F | +8N | −31B | −1N | =20B | 1.5 | 10.0 | 10.0 | 4.00 | 1917 | +6.4 |
| 24 | Suresh, Kawin Sayi | 1853 | USA | =11B | −9N | −26N | +34B | −12N | 1.5 | 9.0 | 9.0 | 1.25 | 1784 | -18.0 |
| 25 | Vadderaju, Sudeep | 1958 | USA | +33B | =3N | −13B | −14B | F | 1.5 | 8.5 | 8.5 | 1.75 | 1965 | -4.4 |
| 26 | Kunchanapalli, Havish Nagasai Sashank | 1900 | USA | F | F | +24B | =11N | −6B | 1.5 | 7.0 | 7.0 | 2.75 | 1950 | +8.0 |
| 27 | Thomas, Kenneth | 1930 | USA | =9B | F | =32N | F | =11B | 1.5 | 5.5 | 5.5 | 2.75 | 2013 | +6.8 |
| 28 | Gao, Sean | 1885 | USA | F | F | =6N | −18N | =29B | 1.0 | 6.0 | 6.0 | 2.00 | 1733 | -24.0 |
| 29 | Ramkumar, Gautham | 1700 | USA | F | F | −21B | =12B | =28N | 1.0 | 5.5 | 5.5 | 1.75 | 1794 | +13.2 |
| 30 | Lavanur, Mahendra | 1827 | USA | F | F | −18B | F | +33N | 1.0 | 2.0 | 2.0 | 0.00 | 1859 | +3.6 |
| 31 | Proleiko, Julian | 2203 | USA | F | F | +23N | F | F | 1.0 | 1.5 | 1.5 | 1.50 | 2631 | +2.0 |
| 32 | Mangalam, ShreyaWCM | 2013 | USA | F | F | =27B | −7N | F | 0.5 | 4.5 | 4.5 | 0.75 | 1755 | -13.6 |
| 33 | Suddala, Anish | 1842 | USA | −25N | −12B | F | −20N | −30B | 0.0 | 7.0 | 7.0 | 0.00 | 1081 | -71.6 |
| 34 | Pittala, Ashvath Reddy | 1815 | USA | F | −11N | −7B | −24N | F | 0.0 | 7.0 | 7.0 | 0.00 | 1139 | -40.4 |
| 35 | Wonsidler, Paul | 1719 | USA | F | F | −8B | −15N | F | 0.0 | 5.0 | 5.0 | 0.00 | 1135 | -18.4 |
| 36 | FIDE 566000645 | 0 | — | −22N | −16B | F | F | F | 0.0 | 3.5 | 3.5 | 0.00 | 1136 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Hengen, Luke OUSA+75.24.0 pts · #2
- 2Jayam, SrikarUSA+50.02.0 pts · #20
- 3Prem, Muthu AvaneeshUSA+36.43.0 pts · #4
Top rating losers
- 1Suddala, AnishUSA-71.60.0 pts · #34
- 2Pittala, Ashvath ReddyUSA-40.40.0 pts · #36
- 3Seetharaman, RakshithUSA-36.82.0 pts · #26
Biggest upsets
- R5+170 Elo gap
- R2+132 Elo gap