Coulsdon Chess Late Spring Standardplay Congress 2025 - Open
Open SwissStandard
16 players participated in this 5-round tournament, held from 25 May 2025 to 26 May 2025 in Coulsdon, England. 1 titled players from 3 federations. Top 10 Elo average was 1868, and top seed was Peter D Lalic (🇬🇧 ENG, CM, 2144).
Mohammad Hossein Mozaffari (🇮🇷 IRI, 1895) won with 4.0/5, ahead of Peter D Lalic (3.5) and Aditya Gupta (3.0). Mozaffari broke clear in the final round.
Location
🇬🇧Coulsdon, England
Dates
25 May 2025 → 26 May 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Titled players · 1
CM×1
Federations · 3 represented
🇬🇧England×14
🇮🇷Iran×1
🇬🇧Wales×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsMohammad Hossein Mozaffari led from R3; +0.5-point edge over the runner-up.
Co-leaders
4
2
1
2
1
R3–R5 · LEAD HELD
Mohammad Hossein Mozaffari held the sole lead from R3 through R5 without losing it.
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Mohammad Hossein Mozaffari lost to CM Peter D Lalic (Black).
WIN STREAKS · 2 top finishers
Mohammad Hossein Mozaffari 3 wins (R1–R3)CM Peter D Lalic 3 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Mohammad Hossein Mozaffari | * | 0 | 1 | 1 |
| 2CMPeter D Lalic | 1 | * | ½ | 1 |
| 3Aditya Gupta | 0 | ½ | * | — |
| 4Martin J Faulkner | 0 | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mozaffari, Mohammad Hossein | 1895 | IRI | +10B | +3N | +9B | −2N | +5N | 4.0 | 9.5 | 10.0 | 6.50 | 2089 | +21.0 |
| 2 | Lalic, Peter DCM | 2144 | ENG | +4N | +5B | F | +1B | =3N | 3.5 | 11.0 | 11.0 | 9.50 | 2148 | +0.2 |
| 3 | Gupta, Aditya | 1745 | ENG | +16B | −1B | =4N | +6N | =2B | 3.0 | 11.5 | 11.5 | 4.75 | 1935 | +46.8 |
| 4 | Kaddu, Mukasa (fred) | 1791 | ENG | −2B | −8N | =3B | +15N | =6B | 2.0 | 10.5 | 10.5 | 2.50 | 1741 | -8.8 |
| 5 | Faulkner, Martin J | 1796 | ENG | +7B | −2N | F | +10N | −1B | 2.0 | 10.0 | 10.0 | 2.50 | 1880 | +7.4 |
| 6 | Lin, William | 1748 | ENG | =9B | +7N | F | −3B | =4N | 2.0 | 8.0 | 8.0 | 3.50 | 1765 | +3.2 |
| 7 | Jackson, Paul G | 1715 | ENG | −5N | −6B | F | +14N | +10B | 2.0 | 4.5 | 4.5 | 0.50 | 1689 | -2.0 |
| 8 | Darville, Matt | 1757 | ENG | F | +4B | +13N | — | — | 2.0 | 2.0 | 2.0 | 2.00 | 2414 | +13.6 |
| 9 | Ratcliffe, James | 1808 | ENG | =6N | =10B | −1N | — | — | 1.0 | 6.0 | 6.5 | 1.25 | 1679 | -20.8 |
| 10 | Warner, Dominic W J | 1750 | ENG | −1N | =9N | F | −5B | −7N | 0.5 | 9.0 | 9.0 | 0.50 | 1486 | -23.6 |
| 11 | Kuzhelev, Timur | 2013 | ENG | =12B | — | — | — | — | 0.5 | 0.0 | 0.5 | 0.25 | 1974 | -1.0 |
| 12 | Baltrunas, Evaldas | 1974 | ENG | =11N | — | — | — | — | 0.5 | 0.0 | 0.5 | 0.25 | 2013 | +1.0 |
| 13 | Ou, Siyao | 1437 | ENG | F | F | −8B | — | — | 0.0 | 2.0 | 2.0 | 0.00 | 957 | -5.2 |
| 14 | Denford, Les | 1461 | ENG | F | F | F | −7B | — | 0.0 | 2.0 | 2.0 | 0.00 | 914 | -3.8 |
| 15 | Slegg, Gary | 1670 | WLS | F | F | F | −4B | — | 0.0 | 2.0 | 2.0 | 0.00 | 991 | -6.8 |
| 16 | Gliddon, Daniel J | 1720 | ENG | −3N | — | — | — | — | 0.0 | 0.0 | 3.0 | 0.00 | 945 | -9.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Gupta, AdityaENG+46.83.0 pts · #3
- 2Mozaffari, Mohammad HosseinIRI+21.04.0 pts · #1
- 3Darville, MattENG+13.62.0 pts · #6
Top rating losers
- 1Warner, Dominic W JENG-23.60.5 pts · #11
- 2Ratcliffe, JamesENG-20.81.0 pts · #9
- 3Gliddon, Daniel JENG-9.20.0 pts · #14