The 5th Vientiane Open FIDE Rated

Open SwissStandard

26 players participated in this 5-round tournament, held from 26 Jul 2025 to 27 Jul 2025 in Vientiane capital, Laos. 2 titled players from 3 federations. Top 10 Elo average was 1394, and top seed was Michael Roy Freeman (🇳🇿 NZL, CM, 2203).

Michael Roy Freeman (🇳🇿 NZL, CM, 2203) won with 4.5/5, ahead of Alvin Pulley (4.0) and SUNJON KAYDEN NGUYEN (4.0). Freeman won solo starting round 3.

Location

🇱🇦Vientiane capital, Laos

Dates

26 Jul 2025 → 27 Jul 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 5 rounds

Top seed

🇳🇿CMMichael Roy Freeman2203

Avg top 10

1,394

Participants

Titled players · 2

CM×2

Federations · 3 represented

🇱🇦Laos×10

🇺🇸United States of America×2

🇳🇿New Zealand×1

Top 3

🥇
CMMichael Roy Freeman
🇳🇿NZL·2203
4.5pts·2152perf-1.4
🥈
Alvin Pulley
🇺🇸USA·1841
4.0pts·1491perf-15.4
🥉
SUNJON KAYDEN NGUYEN
🇱🇦LAO·1432
4.0pts·1730perf+26.8

How it unfolded

Top 6 · 5 rounds

CM Michael Roy Freeman led from R3; +0.5-point edge over the runner-up.

Co-leaders

Freeman4.5NGUYEN4YOMVILATH4Pulley4Langreck3.5Yang3.5

R3–R5 · LEAD HELD

CM Michael Roy Freeman held the sole lead from R3 through R5 without losing it.

R1–R4 · WIN STREAK

CM Michael Roy Freeman won 4 in a row (R1–R4).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1CMMichael Roy Freeman	*	—	—	—
2SUNJON KAYDEN NGUYEN	—	*	—	½
3SOUMINTA YOMVILATH	—	—	*	½
4Alvin Pulley	—	½	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Freeman, Michael RoyCM	2203	NZL	+10B	+23N	+12B	+7N	=5B	4.5	12.5	13.5	11.75	2152	-1.4
2	Pulley, Alvin	1841	USA	+17B	+15N	=4B	=3N	+10B	4.0	13.5	16.0	12.00	1491	-15.4
3	NGUYEN, SUNJON KAYDEN	1432	LAO	+24N	+19B	=6N	=2B	+15N	4.0	12.0	13.0	9.25	1730	+26.8
4	YOMVILATH, SOUMINTA	1539	LAO	+26B	+13N	=2N	=12B	+9N	4.0	12.0	12.0	8.75	1696	+14.4
5	Langreck, John	2030	USA	F	+9B	+8N	+6B	=1N	3.5	14.5	14.5	12.25	2110	+6.2
6	Senglek, Khonsavanh	1627	LAO	+20B	+11N	=3B	−5N	+14B	3.5	13.0	15.0	9.50	1537	-6.6
7	Chi YangCM	1715	LAO	=8N	+16B	+25N	−1B	+12N	3.5	13.0	14.0	7.75	1833	+8.0
8	MANICHITH, NAMPHET	0	LAO	=7B	+14N	−5B	+?N	+13B	3.5	12.0	12.0	6.75	1680	0.0
9	FIDE 17702470	0	—	+22B	−5N	+17B	+11N	−4B	3.0	13.0	14.5	7.00	986	0.0
10	Maglacion, Herald Wayne Fresco	0	LAO	−1N	+?B	+21N	+18B	−2N	3.0	12.5	12.5	4.00	1222	0.0
11	FIDE 17701970	0	—	+25N	−6B	+?N	−9B	+19N	3.0	9.5	9.5	3.00	827	0.0
12	SUELO, RYZIA LEI ZHEYSHA	1549	LAO	+18N	+21B	−1N	=4N	−7B	2.5	14.5	16.0	6.00	1462	-14.8
13	FIDE 17702577	0	—	+?N	−4B	+20N	=15B	−8N	2.5	12.0	12.0	3.25	1482	0.0
14	FIDE 17702755	0	—	=16N	−8B	+19N	+23B	−6N	2.5	11.5	12.5	4.25	827	0.0
15	JOSHUA JEDIDIAH,BEJO	0	LAO	+?B	−2B	+24N	=13N	−3B	2.5	11.5	11.5	2.25	837	0.0
16	FIDE 17702763	0	—	=14B	−7N	−?B	+22N	+21N	2.5	9.0	9.0	4.25	915	0.0
17	MANALO, SEAN MICHAEL	0	LAO	−2N	+?B	−9N	+24B	=?B	2.5	8.0	8.0	1.00	1632	0.0
18	FIDE 17702364	0	—	−12B	+?N	+23B	−10N	=?B	2.5	6.5	6.5	1.00	750	0.0
19	FIDE 17702585	0	—	+?B	−3N	−14B	+20N	−11B	2.0	11.5	11.5	2.00	632	0.0
20	FIDE 17702356	0	—	−6N	+?N	−13B	−19B	+23N	2.0	9.0	9.0	1.00	827	0.0
21	SENGPHACHAN, BOUNTHENGNOY	0	LAO	+?B	−12N	−10B	=?N	−16B	1.5	8.0	8.0	0.00	1293	0.0
22	FIDE 8675317	0	—	−9N	−24B	=?N	−16B	+?B	1.5	6.5	6.5	0.00	1422	0.0
23	FIDE 17702615	0	—	+?B	−1B	−18N	−14N	−20B	1.0	11.5	11.5	0.00	1403	0.0
24	FIDE 17702240	0	—	−3B	+22N	−15B	−17N	−?B	1.0	10.5	10.5	1.50	632	0.0
25	FIDE 17702321	0	—	−11B	+26N	−7B	−?N	−?N	1.0	6.5	6.5	0.00	915	0.0
26	FIDE 17702690	0	—	−4N	−25B	F	−?N	−?B	0.0	5.0	5.0	0.00	682	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1NGUYEN, SUNJON KAYDENLAO
+26.8
4.0 pts · #4
2YOMVILATH, SOUMINTALAO
+14.4
4.0 pts · #7
3Chi YangCMLAO
+8.0
3.5 pts · #6

Top rating losers

1Pulley, AlvinUSA
-15.4
4.0 pts · #8
2SUELO, RYZIA LEI ZHEYSHALAO
-14.8
2.5 pts · #12
3Senglek, KhonsavanhLAO
-6.6
3.5 pts · #10