2026 National Age Group Chess Championship - Standard Event U18 Boys

Open SwissStandard

61 players participated in this 8-round tournament, held from 04 Jun 2026 to 06 Jun 2026 in Olongapo City, Philippines. 2 federations represented. Top 10 Elo average was 1938, and top seed was Phil Martin Casiguran (🇵🇭 PHI, 2282).

Phil Martin Casiguran (🇵🇭 PHI, 2282) won with 8.0/8, ahead of Cassey Miguel Tabamo (6.5) and Chester Acuyong (6.0). Casiguran won solo starting round 4.

The biggest upset came in round 3: Darvin Jace Manalo (1487) beat King Lanz Pamplona (1864), a +377-point gap.

Location

🇵🇭Olongapo City, Philippines

Dates

04 Jun 2026 → 06 Jun 2026

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 8 rounds

Top seed

🇵🇭Phil Martin Casiguran2282

Avg top 10

1,938

Participants

Federations · 2 represented

🇵🇭Philippines×44

FIDE (no federation)×1

Top 3

🥇
Phil Martin Casiguran
🇵🇭PHI·2282
8.0pts·2707perf+26.4
🥈
Cassey Miguel Tabamo
🇵🇭PHI·1826
6.5pts·1898perf+16.8
🥉
Chester Acuyong
🇵🇭PHI·1672
6.0pts·1897perf+59.2

How it unfolded

Top 6 · 8 rounds

Phil Martin Casiguran led from R4; +1.5-point edge over the runner-up.

Co-leaders

Casiguran8Tabamo6.5Acuyong6Paradero6Paraguya5.5Romero5.5

R4–R8 · LEAD HELD

Phil Martin Casiguran never relinquished the lead after R4; final gap +1.5 over the runner-up.

R1–R8 · WIN STREAK

Phil Martin Casiguran won 8 in a row (R1–R8).

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	Pts	Bu C1	Bu	SB	Perf	Δ
1	Casiguran, Phil Martin	2282	PHI	+57B	+34N	+10B	+27N	+5B	+9N	+6B	+7N	8.0	35.5	37.5	37.50	2707	+26.4
2	Tabamo, Cassey Miguel	1826	PHI	+46N	=54B	=37N	+21B	+17N	=8B	+9B	+15N	6.5	32.0	34.5	28.75	1898	+16.8
3	Acuyong, Chester	1672	PHI	+58N	+17B	−5N	+20B	=14N	=10B	+12N	+16B	6.0	35.5	37.5	26.75	1897	+59.2
4	Paradero, Gabriel Ryan	1999	PHI	=21N	−37B	+38N	+18B	+54N	+19B	=7N	+14B	6.0	31.5	34.0	25.50	2067	+11.6
5	Narzabal, Joemel	1979	PHI	+25B	+29N	+3B	=8N	−1N	−12B	+37N	+19B	5.5	37.5	41.0	25.25	1837	-34.8
6	Paraguya, Yuri Lei	1923	PHI	=37N	+35B	+33N	=12B	+16N	+27B	−1N	=11B	5.5	35.5	39.0	24.00	2006	+22.4
7	Romero, Gladimir Chester	1919	PHI	+39B	−32N	+31B	+54B	+12N	+13N	=4B	−1B	5.5	35.5	38.0	23.00	1913	+2.0
8	De Asas, Aaron Francis	1771	PHI	+61B	+31N	+19B	=5B	−9N	=2N	+20B	=13N	5.5	35.5	36.0	22.00	1794	+3.6
9	Vergara, Joseph Raphael	1827	PHI	=42B	+47N	+23B	+41N	+8B	−1B	−2N	+22B	5.5	35.0	38.0	22.00	1865	+9.6
10	Puso, King Whisley	1705	PHI	+60B	+51N	−1N	=19B	+42B	=3N	=13B	+27N	5.5	33.5	34.5	18.75	1883	+32.8
11	FIDE 584003650	0	—	−28B	+55N	−29B	+25N	+30B	+34N	+24B	=6N	5.5	30.5	33.0	22.25	1679	0.0
12	Arinos, Xyrus Gil	1797	PHI	+24B	+30N	=41B	=6N	−7B	+5N	−3B	+28N	5.0	35.0	38.0	22.25	1779	-1.2
13	Miranda, Jin Clark Myco	1890	PHI	−31N	+61B	+22N	+32B	+15N	−7B	=10N	=8B	5.0	34.0	34.5	19.50	1828	-14.8
14	Pamplona, King Lanz	1864	PHI	+43N	=33B	−54N	+22B	=3B	+45N	+28B	−4N	5.0	30.5	33.0	19.50	1653	-59.2
15	Florentino, Marcus Gavrie	1736	PHI	+53B	−19N	+51B	+28N	−13B	+41N	+27N	−2B	5.0	30.0	33.0	17.00	1805	+21.2
16	Saballe, Alexis Jade	1780	PHI	+50N	−41B	+43N	+37B	−6B	+36N	+21B	−3N	5.0	29.5	32.5	18.00	1463	-64.0
17	Torres, Roldio	0	PHI	+?B	−3N	+57B	+29N	−2B	−?N	+36B	+32N	5.0	26.5	26.5	14.00	1672	0.0
18	FIDE 521044651	0	—	−54N	+46B	+30B	−4N	+44B	−28N	+?B	+29N	5.0	26.5	26.5	14.00	1625	0.0
19	Han, Jaeu	0	PHI	+?B	+15B	−8N	=10N	+23B	−4N	+34B	−5N	4.5	36.0	36.0	16.25	1807	0.0
20	Salazar, Andrei Daniel	0	PHI	−30B	+24N	+44B	−3N	+33B	+29N	−8N	=26B	4.5	32.5	35.5	17.75	1618	0.0
21	Anorico, Drake T?	0	PHI	=4B	=44N	+52B	−2N	+53B	+26B	−16N	=?B	4.5	31.0	31.0	15.00	1694	0.0
22	Ponan, Noah Ezekiel	0	PHI	+36B	=23N	−13B	−14N	+48B	+30N	+?B	−9N	4.5	31.0	31.0	13.25	1721	0.0
23	Magalang, Jeffrey Louise	1673	PHI	+38N	=22B	−9N	+33B	−19N	−37B	+54N	+31B	4.5	29.5	32.0	16.25	1749	+12.4
24	Ermita, Arhjae	0	PHI	−12N	−20B	+59N	+35B	=32N	+54B	−11N	+45B	4.5	28.5	30.0	13.00	1650	0.0
25	Arenas, Siemon Albert	0	PHI	−5N	−56B	+61N	−11B	=35N	+55B	+38N	+37B	4.5	26.5	27.0	12.00	1179	0.0
26	Ocampo, Robi	1673	PHI	=47B	+49N	=42B	+53N	−27B	−21N	+41B	=20N	4.5	25.0	28.0	14.25	1668	-0.4
27	Almario, John Benedict	1866	PHI	+55B	+28N	+32B	−1B	+26N	−6N	−15B	−10B	4.0	36.5	39.0	15.00	1745	-49.2
28	Tan, Morgan Anderson	1615	FID	+11N	−27B	+56N	−15B	+43N	+18B	−14N	−12B	4.0	32.5	34.5	15.50	1016	-39.2
29	Antiporta, Jayrald Jade	1665	PHI	+56N	−5B	+11N	−17B	+31N	−20B	+43N	−18B	4.0	32.5	34.5	14.50	1179	-5.6
30	Bandejas, Raemund Zabdiel	1524	PHI	+20N	−12B	−18N	+51B	−11N	−22B	+56N	+49B	4.0	30.5	32.5	12.50	997	-6.8
31	Bautista, John Daniel	0	PHI	+13B	−8B	−7N	+59N	−29B	+49N	+45B	−23N	4.0	30.5	32.0	12.50	1626	0.0
32	Manire, Joshua	1648	PHI	+48B	+7B	−27N	−13N	=24B	=42N	+44B	−17B	4.0	30.0	33.0	15.25	1784	+26.8
33	Noblijas, Art R.	1559	PHI	+40B	=14N	−6B	−23N	−20N	=35B	+47B	+42N	4.0	30.0	33.0	14.00	1547	-3.2
34	Gorostiaga, Ricdaniel	1666	PHI	+59B	−1B	+58N	=42N	=41B	−11B	−19N	+44N	4.0	29.0	30.5	9.50	1665	-3.6
35	FIDE 115094445	0	—	=44B	−6N	=39B	−24N	=25B	=33N	+50B	+41N	4.0	28.0	31.0	13.50	1603	0.0
36	Borras, Tirso Martin	1559	PHI	−22N	=38B	+48N	=45B	+56N	−16B	−17N	+43B	4.0	27.0	29.0	11.25	1491	-7.2
37	Asuncion, Jayden Charles	0	PHI	=6B	+4N	=2B	−16N	=?B	+23N	−5B	−25N	3.5	37.5	37.5	16.50	1841	0.0
38	Lorenzano, Brent Ray	0	PHI	−23B	=36N	−4B	=?N	+57B	=39N	−25B	+55N	3.5	27.0	27.0	8.25	1486	0.0
39	FIDE 584003596	0	—	−7N	=48B	=35N	−56B	+58N	=38B	+46N	−?N	3.5	23.0	23.0	10.25	1015	0.0
40	FIDE 521091510	0	—	−33N	−43B	−46N	=55N	=50B	+61B	=53N	+54B	3.5	21.0	21.5	7.25	1523	0.0
41	Dilla, Glenn Caleb	1470	PHI	+52B	+16N	=12N	−9B	=34N	−15B	−26N	−35B	3.0	33.0	36.0	12.50	1622	+38.0
42	FIDE 5271037	0	—	=9N	+45B	=26N	=34B	−10N	=32B	−?N	−33B	3.0	30.5	30.5	12.00	1592	0.0
43	Celis, Karl	0	PHI	−14B	+40N	−16B	+49N	−28B	+47N	−29B	−36N	3.0	28.5	31.5	9.50	897	0.0
44	Lumalang, Nathanael Raje	1460	PHI	=35N	=21B	−20N	+60B	−18N	+56B	−32N	−34B	3.0	28.0	29.0	7.25	857	-20.0
45	Cayabyab, Riley Vaughn	1588	PHI	=49B	−42N	+47B	=36N	+52B	−14B	−31N	−24N	3.0	26.5	29.5	9.50	1519	-8.4
46	FIDE 584003618	0	—	−2B	−18N	+40B	−52N	−47B	+60N	−39B	+58N	3.0	26.5	27.5	6.50	1026	0.0
47	Luchavez, Warren Iii	0	PHI	=26N	−9B	−45N	=?B	+46N	−43B	−33N	+57N	3.0	25.0	25.0	7.25	1443	0.0
48	Mandagan, Gian Miel E.	0	PHI	−32N	=39N	−36B	+50B	−22N	−57N	+60B	=53N	3.0	24.0	25.0	7.25	804	0.0
49	FIDE 584003669	0	—	=45N	−26B	=?N	−43B	+51N	−31B	+57B	−30N	3.0	23.5	23.5	6.50	1446	0.0
50	Ferolino, Jonathan	0	PHI	−16B	−52N	=?B	−48N	=40N	+58B	−35N	+56B	3.0	22.5	22.5	5.75	1440	0.0
51	FIDE 521087725	0	—	+?B	−10B	−15N	−30N	−49B	+59N	+52B	−?N	3.0	22.0	22.0	4.50	1392	0.0
52	FIDE 115109305	0	—	−41N	+50B	−21N	+46B	−45N	−?B	−51N	+60B	3.0	20.5	20.5	7.00	809	0.0
53	FIDE 115108193	0	—	−15N	+?N	+?B	−26B	−21N	−?N	=40B	=48B	3.0	20.5	20.5	3.25	1603	0.0
54	Manalo, Darvin Jace	1487	PHI	+18B	=2N	+14B	−7N	−4B	−24N	−23B	−40N	2.5	37.0	40.5	13.25	1678	+34.8
55	FIDE 584003600	0	—	−27N	−11B	−60N	=40B	+61N	−25N	+59B	−38B	2.5	23.5	24.0	3.75	1066	0.0
56	FIDE 584003642	0	—	−29B	+25N	−28B	+39N	−36B	−44N	−30B	−50N	2.0	27.0	30.0	8.00	765	0.0
57	Abesamis, Jose Iv	0	PHI	−1N	−59B	−17N	+61B	−38N	+48B	−49N	−47B	2.0	27.0	27.5	3.50	1482	0.0
58	Lumang-Ay, John Benedict	0	PHI	−3B	+?N	−34B	−?N	−39B	−50N	+61N	−46B	2.0	20.0	20.0	0.50	1441	0.0
59	FIDE 584003634	0	—	−34N	+57N	−24B	−31B	−?N	−51B	−55N	=61B	1.5	20.5	20.5	2.25	918	0.0
60	FIDE 115098328	0	—	−10N	−?N	+55B	−44N	−?B	−46B	−48N	−52N	1.0	20.0	20.0	2.50	790	0.0
61	FIDE 584003626	0	—	−8N	−13N	−25B	−57N	−55B	−40N	−58B	=59N	0.5	25.0	26.5	0.75	1031	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Acuyong, ChesterPHI
+59.2
6.0 pts · #12
2Dilla, Glenn CalebPHI
+38.0
3.0 pts · #27
3Manalo, Darvin JacePHI
+34.8
2.5 pts · #32

Top rating losers

1Saballe, Alexis JadePHI
-64.0
5.0 pts · #41
2Pamplona, King LanzPHI
-59.2
5.0 pts · #11
3Almario, John BenedictPHI
-49.2
4.0 pts · #13

Biggest upsets

R3+377 Elo gap
Manalo, Darvin Jace1487 beat Pamplona, King Lanz1864
R2+310 Elo gap
Dilla, Glenn Caleb1470 beat Saballe, Alexis Jade1780
R2+271 Elo gap
Manire, Joshua1648 beat Romero, Gladimir Chester1919