2025 Ballarat Koelle B Rounds 4-7
Open SwissStandard
19 players participated in this 7-round tournament, held from 30 Oct 2025 to 20 Nov 2025 in Ballarat, Australia. Top 10 Elo average was 0.
Alberto Biju (🇦🇺 AUS, 0) won with 4.0/7, ahead of Ryan Lambrou (3.0) and Morgan Colgrave (2.5). Biju won solo starting round 6.
Location
🇦🇺Ballarat, Australia
Dates
30 Oct 2025 → 20 Nov 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Avg top 10
0
Participants
19
Federations · 1 represented
🇦🇺Australia×12
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsAlberto Biju led from R6; +1.0-point edge over the runner-up. Title race converged from 13 co-leaders at R4 to 1 by R6.
Co-leaders
44
44
44
13
3
1
1
R6–R7 · LEAD HELD
Alberto Biju never relinquished the lead after R6; final gap +1.0 over the runner-up.
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Alberto Biju beat Ryan Lambrou (Black).
R4–R7 · WIN STREAK
Alberto Biju won 4 in a row (R4–R7).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Alberto Biju | * | 1 | — | 1 |
| 2Ryan Lambrou | 0 | * | 1 | — |
| 3Morgan Colgrave | — | 0 | * | — |
| 4Jasan Barnett | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Biju, Alberto | 0 | AUS | F | F | F | +8N | +9B | +2N | +4B | 4.0 | 8.0 | 8.0 | 8.00 | 2258 | +48.8 |
| 2 | Lambrou, Ryan | 0 | AUS | F | F | F | +3N | +11B | −1B | +5N | 3.0 | 9.5 | 9.5 | 5.50 | 1466 | 0.0 |
| 3 | Colgrave, Morgan | 0 | AUS | F | F | F | −2B | +17B | +6N | =8N | 2.5 | 6.5 | 6.5 | 2.75 | 1467 | +3.2 |
| 4 | Barnett, Jasan | 0 | AUS | F | F | F | +18N | =12B | +10N | −1N | 2.5 | 6.0 | 6.0 | 1.50 | 725 | -16.8 |
| 5 | Block, Nigel | 0 | AUS | F | F | F | F | +7N | +8N | −2B | 2.0 | 6.5 | 6.5 | 3.50 | 1487 | 0.0 |
| 6 | Thekkan, Maximus | 0 | AUS | F | F | F | +13B | −?N | −3B | +?B | 2.0 | 3.5 | 3.5 | 1.00 | 606 | 0.0 |
| 7 | FIDE 3291618 | 0 | — | F | F | F | +17N | −5B | +16B | −?N | 2.0 | 2.5 | 2.5 | 0.50 | 1498 | 0.0 |
| 8 | Dissanayake, Methuja | 0 | AUS | F | F | F | −1B | +16N | −5B | =3B | 1.5 | 9.0 | 9.0 | 1.75 | 1470 | +0.8 |
| 9 | Sebastian, Davin | 0 | AUS | F | F | F | +19B | −1N | F | −10B | 1.0 | 5.0 | 5.0 | 0.00 | 1518 | +8.8 |
| 10 | Mewett, Lachlan | 0 | AUS | F | F | F | F | F | −4B | +9N | 1.0 | 3.5 | 3.5 | 1.00 | 1454 | 0.0 |
| 11 | FIDE 3296148 | 0 | — | F | F | F | +16B | −2N | F | F | 1.0 | 3.5 | 3.5 | 0.50 | 1498 | 0.0 |
| 12 | Wansapura, Minsadi Chamathka | 0 | AUS | F | F | F | F | =4N | F | =16B | 1.0 | 3.0 | 3.0 | 1.50 | 1475 | 0.0 |
| 13 | FIDE 3282511 | 0 | — | F | F | F | −6N | +?B | −?B | −?N | 1.0 | 2.0 | 2.0 | 0.00 | 702 | 0.0 |
| 14 | FIDE 3292800 | 0 | — | F | F | F | −?N | −?B | F | +?N | 1.0 | 0.0 | 0.0 | 0.00 | 1484 | 0.0 |
| 15 | FIDE 3292770 | 0 | — | F | F | F | −?N | +?B | F | F | 1.0 | 0.0 | 0.0 | 0.00 | 1484 | 0.0 |
| 16 | Jacob, Zachariah | 0 | AUS | F | F | F | −11N | −8B | −7N | =12N | 0.5 | 5.5 | 5.5 | 0.50 | 667 | -20.8 |
| 17 | FIDE 3291677 | 0 | — | F | F | F | −7B | −3N | −?N | F | 0.0 | 4.5 | 4.5 | 0.00 | 606 | 0.0 |
| 18 | FIDE 3296113 | 0 | — | F | F | F | −4B | F | F | F | 0.0 | 2.5 | 2.5 | 0.00 | 671 | 0.0 |
| 19 | De Saram, Joshua | 0 | AUS | F | F | F | −9N | F | F | F | 0.0 | 1.0 | 1.0 | 0.00 | 636 | -24.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Biju, AlbertoAUS+48.84.0 pts · #1
- 2Sebastian, DavinAUS+8.81.0 pts · #7
- 3Colgrave, MorganAUS+3.22.5 pts · #12
Top rating losers
- 1De Saram, JoshuaAUS-24.00.0 pts · #15
- 2Jacob, ZachariahAUS-20.80.5 pts · #17
- 3Barnett, JasanAUS-16.82.5 pts · #13