Jumuiya Ya Afrika Mashariki 12- Square Series 2026 U1600 Section- 1st Episode
Open SwissStandard
14 players participated in this 3-round tournament, held on 28 Feb 2026 in Nairobi, Kenya. Top 10 Elo average was 1190, and top seed was Munyao Kelvin Makau (🇰🇪 KEN, 1574).
Ndungu Brian Marvin (🇰🇪 KEN, 1502) won with 3.0/3, ahead of Njenga Dayson Irari (2.5) and Salma Nkatha Mwenda (2.0). Marvin broke clear in the final round.
The biggest upset came in round 1: Njenga Dayson Irari (1406) beat Mutugi Teddy (1551), a +145-point gap.
Location
🇰🇪Nairobi, Kenya
Dates
28 Feb 2026
Time control
Standard: 90 minutes for the whole game
System
Swiss · 3 rounds
Federations · 1 represented
🇰🇪Kenya×13
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 3 roundsNdungu Brian Marvin led from R3; +0.5-point edge over the runner-up.
Co-leaders
6
2
1
R3–R3 · LEAD HELD
Ndungu Brian Marvin held the sole lead from R3 through R3 without losing it.
R1–R3 · WIN STREAK
Ndungu Brian Marvin won 3 in a row (R1–R3).
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ndungu Brian Marvin | 1502 | KEN | +12N | +4B | +3B | 3.0 | 4.0 | 5.0 | 5.00 | 2205 | +14.8 |
| 2 | Njenga Dayson Irari | 1406 | KEN | +9N | =8B | +7N | 2.5 | 2.5 | 3.5 | 3.00 | 1756 | +36.8 |
| 3 | Salma Nkatha Mwenda | 1534 | KEN | +10N | +11B | −1N | 2.0 | 4.0 | 5.0 | 2.00 | 1469 | +6.8 |
| 4 | Chepkoiwo Blessing Jerutich | 0 | KEN | +?N | −1N | +10B | 2.0 | 4.0 | 4.0 | 1.00 | 1510 | 0.0 |
| 5 | Otieno Ronny | 1466 | KEN | =7N | +9B | =8N | 2.0 | 2.5 | 3.5 | 2.25 | 1756 | +14.6 |
| 6 | Gichuga Wanjiru Wanjiku | 0 | KEN | +?N | −7B | +11N | 2.0 | 2.5 | 2.5 | 1.00 | 2268 | +23.6 |
| 7 | Jeremy Aden Duke | 0 | KEN | =5B | +6N | −2B | 1.5 | 4.5 | 6.5 | 3.00 | 1249 | -42.8 |
| 8 | Munyao Kelvin Makau | 1574 | KEN | F | =2N | =5B | 1.0 | 4.5 | 4.5 | 2.25 | 1442 | -14.0 |
| 9 | Mutugi Teddy | 1551 | KEN | −2B | −5N | +13B | 1.0 | 4.5 | 4.5 | 0.00 | 1314 | -38.4 |
| 10 | Bowen Ndegwa Waikwa | 0 | KEN | −3B | +?B | −4N | 1.0 | 4.0 | 4.0 | 0.00 | 1462 | 0.0 |
| 11 | Osidiana Eli | 1436 | KEN | +14B | −3N | −6B | 1.0 | 4.0 | 4.0 | 0.00 | 605 | -21.6 |
| 12 | FIDE 10845933 | 0 | — | −1B | F | +?N | 1.0 | 3.0 | 3.0 | 0.00 | 1501 | 0.0 |
| 13 | Kabechu Dennis | 1432 | KEN | F | F | −9N | 0.0 | 2.0 | 3.0 | 0.00 | 752 | -13.6 |
| 14 | Mugambi Nathan Baraka | 0 | KEN | −11N | −?B | −?N | 0.0 | 1.0 | 1.0 | 0.00 | 685 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Njenga Dayson IrariKEN+36.82.5 pts · #3
- 2Gichuga Wanjiru WanjikuKEN+23.62.0 pts · #1
- 3Ndungu Brian MarvinKEN+14.83.0 pts · #6
Top rating losers
- 1Jeremy Aden DukeKEN-42.81.5 pts · #11
- 2Mutugi TeddyKEN-38.41.0 pts · #10
- 3Osidiana EliKEN-21.61.0 pts · #14
Biggest upsets
- R1+145 Elo gap