Kenya National Youth and Cadet Chess Championship Playoffs - U10 Open
28 players participated in this 11-round tournament, held from 10 Apr 2026 to 13 Apr 2026 in Nairobi, Kenya. Top 10 Elo average was 1477, and top seed was Jeremy Aden Duke (🇰🇪 KEN, 1628).
Marc-Antoine Ishimwe Ndagijimana (🇰🇪 KEN, 1493) won with 9.0/11, ahead of Rotich Darrien Kigen (8.5) and Andy Zane Wright (8.0). Ndagijimana shared the lead from round 6 and won solo starting round 7.
The biggest upset came in round 6: Jayden Kiogora Mwenda (1461) beat Jeremy Aden Duke (1628), a +167-point gap.
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How it unfolded
Top 6 · 11 roundsMarc-Antoine Ishimwe Ndagijimana led from R7; +0.5-point edge over the runner-up.
Marc-Antoine Ishimwe Ndagijimana takes the sole lead (6.0/7).
Marc-Antoine Ishimwe Ndagijimana beat Rotich Darrien Kigen (Black).
Marc-Antoine Ishimwe Ndagijimana 5 wins (R5–R9)Rotich Darrien Kigen 4 wins (R1–R4)Andy Zane Wright 3 wins (R5–R7)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Marc-Antoine Ishimwe Ndagijimana | * | 1 | ½ | ½ |
| 2Rotich Darrien Kigen | 0 | * | ½ | ½ |
| 3Andy Zane Wright | ½ | ½ | * | 1 |
| 4Jayden Kiogora Mwenda | ½ | ½ | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 | R11 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Marc-Antoine Ishimwe Ndagijimana | 1493 | KEN | +28B | +27N | =5B | =3N | +7B | +2N | +10B | +4N | +8B | −6N | +11B | 9.0 | 65.0 | 65.0 | 50.00 | 1799 | +106.8 |
| 2 | Rotich Darrien Kigen | 1493 | KEN | +17N | +24B | +6N | +4N | =5B | −1B | +11N | =3B | =10N | +12B | +7N | 8.5 | 68.5 | 71.5 | 51.50 | 1573 | +31.6 |
| 3 | Andy Zane Wright | 1478 | KEN | +22B | +14N | −4B | =1B | +13N | +11B | +5N | =2N | −6B | +8N | +10B | 8.0 | 69.5 | 73.5 | 49.75 | 1631 | +57.6 |
| 4 | Jeremy Aden Duke | 1628 | KEN | +12N | +11B | +3N | −2B | +24N | −5B | +17N | −1B | +13N | +10B | +6B | 8.0 | 68.0 | 71.0 | 45.50 | 1458 | -53.2 |
| 5 | Jayden Kiogora Mwenda | 1461 | KEN | +15N | +21B | =1N | +10B | =2N | +4N | −3B | +12B | +16N | −7B | +19N | 8.0 | 66.5 | 70.5 | 47.25 | 1528 | +25.2 |
| 6 | Myles Kiyo Muratha | 0 | KEN | +16B | +9N | −2B | −11B | +21N | −8N | +18B | +14B | +3N | +1B | −4N | 7.0 | 67.5 | 71.5 | 43.00 | 1487 | 0.0 |
| 7 | Mukhwana Gene Pence Barasa | 1413 | KEN | =23N | +13B | −10N | +12B | −1N | +9N | −8B | +11B | +19N | +5N | −2B | 6.5 | 65.5 | 69.0 | 37.25 | 1411 | -1.6 |
| 8 | Muli, Baraka Kimama | 1409 | KEN | +18N | =10B | −11N | −13B | +22N | +6B | +7N | +17B | −1N | −3B | +12N | 6.5 | 63.0 | 67.0 | 36.00 | 1293 | -30.8 |
| 9 | Sean Ringera | 1545 | KEN | =13N | −6B | +20N | +23B | −10N | −7B | +22N | −19B | +14N | +16B | +17N | 6.5 | 53.5 | 57.0 | 30.25 | 1292 | -40.8 |
| 10 | Mudenyo Baraka Jackson | 1405 | KEN | +25B | =8N | +7B | −5N | +9B | +16N | −1N | +13B | =2B | −4N | −3N | 6.0 | 71.5 | 74.5 | 34.00 | 1441 | +18.0 |
| 11 | Mudenyo Jon Courson | 1419 | KEN | +26B | −4N | +8B | +6N | =16B | −3N | −2B | −7N | +20N | +13B | −1N | 5.5 | 68.5 | 71.5 | 29.00 | 1248 | -58.0 |
| 12 | FIDE 554013356 | 0 | — | −4B | +26N | +14B | −7N | +18B | =19N | +16B | −5N | +15B | −2N | −8B | 5.5 | 63.0 | 66.0 | 26.25 | 1200 | 0.0 |
| 13 | FIDE 10856218 | 0 | — | =9B | −7N | +25B | +8N | −3B | +15N | +19B | −10N | −4B | −11N | +27B | 5.5 | 60.0 | 61.0 | 23.75 | 1241 | 0.0 |
| 14 | FIDE 10899936 | 0 | — | +20N | −3B | −12N | +26B | −17N | +21B | +24B | −6N | −9B | =15N | +23B | 5.5 | 52.5 | 55.5 | 20.75 | 712 | 0.0 |
| 15 | FIDE 554008255 | 0 | — | −5B | +25N | −16B | −18N | +27N | −13B | +23N | +24B | −12N | =14B | +26B | 5.5 | 47.0 | 48.0 | 16.25 | 648 | 0.0 |
| 16 | Prince Bjorn Kagongona | 1434 | KEN | −6N | +23B | +15N | +21B | =11N | −10B | −12N | +20B | −5B | −9N | =22B | 5.0 | 56.5 | 60.0 | 22.25 | 1136 | -54.8 |
| 17 | FIDE 554018854 | 0 | — | −2B | +?N | −19N | +27B | +14B | +24N | −4B | −8N | −18B | +26N | −9B | 5.0 | 51.5 | 51.5 | 12.50 | 719 | 0.0 |
| 18 | FIDE 554018862 | 0 | — | −8B | +28N | −24N | +15B | −12N | +26B | −6N | +22B | +17N | −19B | −20N | 5.0 | 48.5 | 48.5 | 17.50 | 609 | 0.0 |
| 19 | FIDE 554018889 | 0 | — | −21N | F | +17B | −24B | +23N | =12B | −13N | +9N | −7B | +18N | −5B | 4.5 | 52.5 | 52.5 | 22.75 | 1348 | 0.0 |
| 20 | FIDE 10853200 | 0 | — | −14B | =22N | −9B | −25N | F | +23B | +21N | −16N | −11B | +27N | +18B | 4.5 | 43.0 | 43.0 | 15.50 | 666 | 0.0 |
| 21 | FIDE 554018846 | 0 | — | +19B | −5N | +27B | −16N | −6B | −14N | −20B | +26B | +24N | −23N | −25B | 4.0 | 47.0 | 48.0 | 11.50 | 648 | 0.0 |
| 22 | FIDE 10893636 | 0 | — | −3N | =20B | −23N | +28B | −8B | +25N | −9B | −18N | +27B | F | =16N | 4.0 | 43.0 | 43.0 | 8.75 | 1145 | 0.0 |
| 23 | FIDE 554007879 | 0 | — | =7B | −16N | +22B | −9N | −19B | −20N | −15B | F | +25N | +21B | −14N | 3.5 | 49.0 | 49.0 | 14.25 | 1191 | 0.0 |
| 24 | FIDE 10899537 | 0 | — | +?B | −2N | +18B | +19N | −4B | −17B | −14N | −15N | −21B | −25N | F | 3.0 | 49.0 | 49.0 | 9.50 | 761 | 0.0 |
| 25 | FIDE 10899758 | 0 | — | −10N | −15B | −13N | +20B | −26N | −22B | F | −27N | −23B | +24B | +21N | 3.0 | 40.0 | 40.0 | 11.50 | 605 | 0.0 |
| 26 | FIDE 10838147 | 0 | — | −11N | −12B | +28B | −14N | +25B | −18N | +27B | −21N | F | −17B | −15N | 3.0 | 40.0 | 40.0 | 4.00 | 619 | 0.0 |
| 27 | FIDE 554018870 | 0 | — | F | −1B | −21N | −17N | −15B | F | −26N | +25B | −22N | −20B | −13N | 1.0 | 43.5 | 43.5 | 3.00 | 693 | 0.0 |
| 28 | FIDE 10857478 | 0 | — | −1N | −18B | −26N | −22N | F | F | F | F | F | F | F | 0.0 | 26.5 | 26.5 | 0.00 | 693 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Marc-Antoine Ishimwe NdagijimanaKEN+106.89.0 pts · #1
- 2Andy Zane WrightKEN+57.68.0 pts · #2
- 3Rotich Darrien KigenKEN+31.68.5 pts · #3
- 1Mudenyo Jon CoursonKEN-58.05.5 pts · #9
- 2Prince Bjorn KagongonaKEN-54.85.0 pts · #15
- 3Jeremy Aden DukeKEN-53.28.0 pts · #7
- R6+167 Elo gap
- R5+140 Elo gap
- R8+135 Elo gap