Coulsdon Chess Daytime Chess October 2025
Open SwissStandard
9 players participated in this 4-round tournament, held from 01 Oct 2025 to 22 Oct 2025 in Coulsdon, England. 2 federations represented. Top 10 Elo average was 1337, and top seed was David C Clayton (🇬🇧 ENG, 1630).
David C Clayton (🇬🇧 ENG, 1630) won with 3.0/4, ahead of David Lilwall (2.5) and Gary Wimble (2.0). Clayton broke clear in the final round.
The biggest upset came in round 4: Michael Woolley (1478) beat A Qaiyum Khan (1591), a +113-point gap.
Location
🇬🇧Coulsdon, England
Dates
01 Oct 2025 → 22 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Federations · 2 represented
🇬🇧England×8
🇬🇧Wales×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 4 roundsDavid C Clayton led from R4; +0.5-point edge over the runner-up.
Co-leaders
3
1
4
1
R4 · LEADER CHANGE22 Oct
David C Clayton takes the sole lead (3.0/4).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1David C Clayton | * | — | — | 1 |
| 2David Lilwall | — | * | 1 | 0 |
| 3Michael Aburrow | — | 0 | * | — |
| 4Gary Wimble | 0 | 1 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Clayton, David C | 1630 | ENG | +9B | =4N | =8N | +3N | 3.0 | 5.0 | 5.5 | 4.00 | 1588 | -3.0 |
| 2 | Lilwall, David | 1520 | ENG | +5B | −3N | +6B | =8N | 2.5 | 5.5 | 6.5 | 4.00 | 1714 | +13.4 |
| 3 | Wimble, Gary | 0 | ENG | +8N | +2B | −4B | −1B | 2.0 | 7.5 | 8.5 | 3.50 | 1533 | 0.0 |
| 4 | Howes, David J | 1559 | ENG | =6N | =1B | +3N | — | 2.0 | 5.0 | 6.5 | 4.25 | 1554 | -0.2 |
| 5 | Aburrow, Michael | 1424 | ENG | −2N | +6B | F | +9B | 2.0 | 4.5 | 4.5 | 2.00 | 1594 | +13.8 |
| 6 | Woolley, Michael | 1478 | ENG | =4B | −5N | −2N | +7N | 1.5 | 6.5 | 8.0 | 2.50 | 1437 | -5.2 |
| 7 | Khan, A Qaiyum | 1591 | ENG | F | +8B | =9B | −6B | 1.5 | 3.0 | 3.0 | 1.25 | 1436 | -12.2 |
| 8 | Merrifield, Peter | 1421 | WLS | −3B | −7N | =1B | =2B | 1.0 | 7.5 | 9.0 | 2.75 | 1455 | +2.6 |
| 9 | Denford, Les | 1409 | ENG | −1N | F | =7N | −5N | 0.5 | 6.5 | 6.5 | 0.75 | 1275 | -9.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Aburrow, MichaelENG+13.82.0 pts · #2
- 2Lilwall, DavidENG+13.42.5 pts · #1
- 3Merrifield, PeterWLS+2.61.0 pts · #8
Top rating losers
- 1Khan, A QaiyumENG-12.21.5 pts · #5
- 2Denford, LesENG-9.20.5 pts · #9
- 3Woolley, MichaelENG-5.21.5 pts · #6
Biggest upsets
- R4+113 Elo gap