Coulsdon Chess Daytime Chess September 2025
Open SwissStandard
9 players participated in this 2-round tournament, held from 17 Sept 2025 to 24 Sept 2025 in Coulsdon, England. 2 federations represented. Top 10 Elo average was 1341, and top seed was David C Clayton (🇬🇧 ENG, 1644).
A Qaiyum Khan (🇬🇧 ENG, 1602) won with 2.0/2, ahead of David J Howes (1.5) and David Lilwall (1.0). Khan broke clear in the final round.
The biggest upset came in round 1: Michael Woolley (1479) beat David C Clayton (1644), a +165-point gap.
Location
🇬🇧Coulsdon, England
Dates
17 Sept 2025 → 24 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 2 rounds
Federations · 2 represented
🇬🇧England×8
🇬🇧Wales×1
Top 3
- 🥇
- 🥈
- 🥉
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Khan, A Qaiyum | 1602 | ENG | +7B | +8N | 2.0 | 0.5 | 0.5 | 0.50 | 2230 | +5.4 |
| 2 | Howes, David J | 1561 | ENG | =4N | +3B | 1.5 | 1.0 | 2.0 | 1.50 | 1663 | +5.2 |
| 3 | Lilwall, David | 1523 | ENG | +5B | −2N | 1.0 | 1.5 | 2.5 | 1.00 | 1488 | -2.0 |
| 4 | Merrifield, Peter | 1417 | WLS | =2B | =7N | 1.0 | 1.5 | 2.0 | 1.00 | 1496 | +4.2 |
| 5 | Denford, Les | 1415 | ENG | −3N | +6B | 1.0 | 1.0 | 2.0 | 1.00 | 1501 | +4.8 |
| 6 | Woolley, Michael | 1479 | ENG | +9B | −5N | 1.0 | 1.0 | 1.0 | 0.00 | 1529 | +2.6 |
| 7 | Aburrow, Michael | 1431 | ENG | −1N | =4B | 0.5 | 2.0 | 3.0 | 0.50 | 1316 | -5.8 |
| 8 | Wimble, Gary | 0 | ENG | F | −1B | 0.0 | 2.0 | 2.0 | 0.00 | 801 | 0.0 |
| 9 | Clayton, David C | 1644 | ENG | −6N | — | 0.0 | 0.0 | 1.0 | 0.00 | 679 | -14.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Khan, A QaiyumENG+5.42.0 pts · #4
- 2Howes, David JENG+5.21.5 pts · #1
- 3Denford, LesENG+4.81.0 pts · #6
Top rating losers
- 1Clayton, David CENG-14.40.0 pts · #9
- 2Aburrow, MichaelENG-5.80.5 pts · #7
- 3Lilwall, DavidENG-2.01.0 pts · #2
Biggest upsets
- R1+165 Elo gap