Southall FIDE Congress August 2025 - U2400
Open SwissStandard
18 players participated in this 5-round tournament, held from 16 Aug 2025 to 17 Aug 2025 in Southall, England. 1 titled players from 5 federations. Top 10 Elo average was 1890, and top seed was Conor O`Donnell (🇮🇪 IRL, FM, 2301).
Conor O`Donnell (🇮🇪 IRL, FM, 2301) won with 4.0/5, ahead of Jonathan Rubeck (3.5) and Navid Ebrahimi (3.5). O`Donnell won solo starting round 3.
The biggest upset came in round 5: Otgonbayar Chinguun (1956) beat Conor O`Donnell (FM, 2301), a +345-point gap.
Location
🇬🇧Southall, England
Dates
16 Aug 2025 → 17 Aug 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Titled players · 1
FM×1
Federations · 5 represented
🇬🇧England×11
🇲🇳Mongolia×4
🇮🇷Iran×1
🇲🇾Malaysia×1
🇮🇪Ireland×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsFM Conor O`Donnell led from R3; +0.5-point edge over the runner-up.
Co-leaders
7
3
1
1
1
R3–R5 · LEAD HELD
FM Conor O`Donnell held the sole lead from R3 through R5 without losing it.
R1–R4 · WIN STREAK
FM Conor O`Donnell won 4 in a row (R1–R4).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FMConor O`Donnell | * | — | — | — |
| 2Jonathan Rubeck | — | * | ½ | 1 |
| 3Navid Ebrahimi | — | ½ | * | — |
| 4Alejandro Lopez-Martinez | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | O`Donnell, ConorFM | 2301 | IRL | +16B | +14N | +11B | +8N | −7B | 4.0 | 9.5 | 10.5 | 7.50 | 2152 | -11.4 |
| 2 | Rubeck, Jonathan | 1850 | ENG | +6B | F | =3N | +5N | +4B | 3.5 | 12.5 | 12.5 | 10.75 | 2046 | +15.4 |
| 3 | Ebrahimi, Navid | 1695 | IRI | +12B | +13N | =2B | −7N | +8B | 3.5 | 11.0 | 13.0 | 8.25 | 1923 | +23.6 |
| 4 | Munkhjin, Otgonbayar | 1589 | MGL | =5B | =9N | +10B | +11N | −2N | 3.0 | 11.5 | 13.5 | 7.25 | 1875 | +72.4 |
| 5 | Brennan, Henry | 1793 | ENG | =4N | =8B | +13N | −2B | +9B | 3.0 | 11.5 | 13.5 | 7.25 | 1761 | -6.4 |
| 6 | Lopez-Martinez, Alejandro | 1761 | ENG | −2N | +15N | −7B | +12N | +11B | 3.0 | 10.5 | 11.5 | 5.00 | 1919 | +42.8 |
| 7 | Chinguun, Otgonbayar | 1956 | MGL | F | F | +6N | +3B | +1N | 3.0 | 10.5 | 10.5 | 10.50 | 2719 | +26.4 |
| 8 | Enkhjin, Otgonbayar | 1662 | MGL | +15B | =5N | +12B | −1B | −3N | 2.5 | 12.5 | 13.5 | 4.50 | 1838 | +42.8 |
| 9 | Buyandalai, Tumen | 1940 | MGL | −11N | =4B | +17N | +14B | −5N | 2.5 | 10.0 | 11.0 | 4.50 | 1738 | -25.0 |
| 10 | Pepe, Salvatore | 1644 | ENG | +18N | −11B | −4N | =16B | +17N | 2.5 | 7.0 | 7.5 | 2.00 | 1759 | +15.2 |
| 11 | Ratcliffe, James | 1787 | ENG | +9B | +10N | −1N | −4B | −6N | 2.0 | 12.5 | 15.0 | 5.00 | 1752 | -14.8 |
| 12 | Chris Biju, Calvin | 1843 | ENG | −3N | +18B | −8N | −6B | +15N | 2.0 | 10.0 | 10.5 | 1.50 | 1670 | -47.6 |
| 13 | Lim, Eu An Iain | 0 | MAS | F | −3B | −5B | +15N | +16N | 2.0 | 8.5 | 8.5 | 2.00 | 1769 | 0.0 |
| 14 | Paulins, Michael | 1686 | ENG | +17N | −1B | F | −9N | +18B | 2.0 | 8.0 | 8.0 | 1.50 | 1914 | +43.2 |
| 15 | Llewellyn, Julian D | 1796 | ENG | −8N | −6B | +18N | −13B | −12B | 1.0 | 9.5 | 10.0 | 0.50 | 1572 | -23.2 |
| 16 | Martin, Jake | 1791 | ENG | −1N | =17B | F | =10N | −13B | 1.0 | 9.5 | 9.5 | 1.75 | 1764 | -8.8 |
| 17 | Jiang, Freddy | 1833 | ENG | −14B | =16N | −9B | =18N | −10B | 1.0 | 8.0 | 8.5 | 0.75 | 1531 | -76.4 |
| 18 | Tamilselvan, Tara | 1795 | ENG | −10B | −12N | −15B | =17B | −14N | 0.5 | 7.5 | 8.5 | 0.50 | 1394 | -89.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Munkhjin, OtgonbayarMGL+72.43.0 pts · #4
- 2Paulins, MichaelENG+43.22.0 pts · #13
- 3Enkhjin, OtgonbayarMGL+42.82.5 pts · #7
Top rating losers
- 1Tamilselvan, TaraENG-89.20.5 pts · #18
- 2Jiang, FreddyENG-76.41.0 pts · #17
- 3Chris Biju, CalvinENG-47.62.0 pts · #10
Biggest upsets
- R5+345 Elo gap
- R4+198 Elo gap
- R5+189 Elo gap