2025 South African Open Chess Championships (U16 Girls)
Open SwissStandard
19 players participated in this 5-round tournament, held from 28 Jun 2025 to 05 Jul 2025 in Johannesburg, South Africa. Top 10 Elo average was 906, and top seed was Helen Christine Rautenbach (🇿🇦 RSA, 1607).
Helen Christine Rautenbach (🇿🇦 RSA, 1607) won with 4.5/5, ahead of Kaylee-Jane Koen (4.0) and Arya Maharaj (4.0). Rautenbach won solo starting round 4.
Location
🇿🇦Johannesburg, South Africa
Dates
28 Jun 2025 → 05 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇿🇦South Africa×11
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsHelen Christine Rautenbach led from R4; +0.5-point edge over the runner-up.
Co-leaders
11
6
2
1
1
R4–R5 · LEAD HELD
Helen Christine Rautenbach held the sole lead from R4 through R5 without losing it.
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Helen Christine Rautenbach drew with Nonhlanhla Ngwangwa (White).
R1–R4 · WIN STREAK
Helen Christine Rautenbach won 4 in a row (R1–R4).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Helen Christine Rautenbach | * | ½ | — | 1 |
| 2Nonhlanhla Ngwangwa | ½ | * | ½ | — |
| 3Arya Maharaj | — | ½ | * | — |
| 4Kaylee-Jane Koen | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Rautenbach, Helen Christine | 1607 | RSA | +16B | +8N | +2B | +6N | =4B | 4.5 | 14.0 | 16.0 | 14.00 | 2279 | +26.0 |
| 2 | Koen, Kaylee-Jane | 1488 | RSA | +10N | +15B | −1N | +9B | +5B | 4.0 | 13.5 | 15.5 | 11.00 | 1547 | +6.0 |
| 3 | Maharaj, Arya | 1494 | RSA | +18B | +13N | =4B | =7N | +6B | 4.0 | 12.0 | 13.0 | 9.50 | 1686 | +19.6 |
| 4 | Ngwangwa, Nonhlanhla | 0 | RSA | +?N | +12B | =3N | +?B | =1N | 4.0 | 10.5 | 10.5 | 6.25 | 1557 | 0.0 |
| 5 | Campher, Hannah | 1487 | RSA | +14N | +9B | −6N | +11B | −2N | 3.0 | 13.0 | 15.0 | 8.00 | 679 | -40.8 |
| 6 | Karsten, Chay | 1467 | RSA | +19B | +17N | +5B | −1B | −3N | 3.0 | 13.0 | 13.0 | 4.50 | 1404 | -9.6 |
| 7 | Williams, Anika | 1518 | RSA | −12N | +10B | +14N | =3B | =8N | 3.0 | 12.0 | 14.0 | 8.50 | 1494 | -1.2 |
| 8 | Raubenheimer, Charne | 0 | RSA | +?N | −1B | +12N | =15B | =7B | 3.0 | 11.5 | 11.5 | 4.50 | 1370 | 0.0 |
| 9 | Mkhasibe, Nobuhle | 0 | RSA | +?B | −5N | +13B | −2N | +14B | 3.0 | 11.0 | 11.0 | 4.00 | 689 | 0.0 |
| 10 | FIDE 534008080 | 0 | — | −2B | −7N | +19B | +16N | +17B | 3.0 | 10.5 | 10.5 | 3.50 | 705 | 0.0 |
| 11 | FIDE 14372304 | 0 | — | −17B | +19N | +?B | −5N | +13B | 3.0 | 6.5 | 6.5 | 2.00 | 687 | 0.0 |
| 12 | FIDE 14365286 | 0 | — | +7B | −4N | −8B | +17N | −?N | 2.0 | 11.5 | 11.5 | 4.50 | 1515 | 0.0 |
| 13 | FIDE 14333210 | 0 | — | +?N | −3B | −9N | +?B | −11N | 2.0 | 10.0 | 10.0 | 0.00 | 1503 | 0.0 |
| 14 | FIDE 14399474 | 0 | — | −5B | +?N | −7B | +?N | −9N | 2.0 | 9.0 | 9.0 | 0.00 | 703 | 0.0 |
| 15 | Botha, Andrea | 0 | RSA | F | −2N | =17B | =8N | +?B | 2.0 | 8.5 | 8.5 | 2.25 | 691 | 0.0 |
| 16 | Monare, Oratilwe | 0 | RSA | −1N | +?B | −?N | −10B | +?N | 2.0 | 7.5 | 7.5 | 0.00 | 759 | 0.0 |
| 17 | FIDE 534009671 | 0 | — | +11N | −6B | =15N | −12B | −10N | 1.5 | 11.0 | 13.0 | 4.00 | 667 | 0.0 |
| 18 | FIDE 534008500 | 0 | — | −3N | −?B | −?N | F | +?B | 1.0 | 4.0 | 4.0 | 0.00 | 703 | 0.0 |
| 19 | FIDE 14394588 | 0 | — | −6N | −11B | −10N | −?B | F | 0.0 | 9.0 | 9.0 | 0.00 | 667 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Rautenbach, Helen ChristineRSA+26.04.5 pts · #1
- 2Maharaj, AryaRSA+19.64.0 pts · #3
- 3Koen, Kaylee-JaneRSA+6.04.0 pts · #6
Top rating losers
- 1Campher, HannahRSA-40.83.0 pts · #17
- 2Karsten, ChayRSA-9.63.0 pts · #4
- 3Williams, AnikaRSA-1.23.0 pts · #8