CChessStats

3rd Vientiane Open FIDE Rated

Open SwissStandard

34 players participated in this 5-round tournament, held from 24 May 2025 to 25 May 2025 in Vientiane capital, Laos. 2 titled players from 3 federations. Top 10 Elo average was 1477, and top seed was Arvie Lozano (🇵🇭 PHI, 1941).

Arvie Lozano (🇵🇭 PHI, 1941) won with 5.0/5, ahead of SOUMINTA YOMVILATH (4.5) and Zirui(SC) Wang (4.0). Lozano broke clear in the final round.

The biggest upset came in round 5: SOUMINTA YOMVILATH (1513) beat Phakthong Vilaphen (1683), a +170-point gap.

Location
🇱🇦Vientiane capital, Laos
Dates
24 May 2025 → 25 May 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇵🇭Arvie Lozano1941
Avg top 10
1,477
Participants
34
Titled players · 2
CM×1
WCM×1
Federations · 3 represented
🇱🇦Laos×12
🇨🇳China×4
🇵🇭Philippines×1
Top 3

How it unfolded

Top 6 · 5 rounds

Arvie Lozano led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
21
10
4
2
1
1.52.545R1R2R3R4R5
R5–R5 · LEAD HELD

Arvie Lozano held the sole lead from R5 through R5 without losing it.

WIN STREAKS · 2 top finishers

Arvie Lozano 5 wins (R1–R5)Zhiyuan Tan 4 wins (R2–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Arvie Lozano*
1
2SOUMINTA YOMVILATH*
3Zhiyuan Tan*
4Yupan Fan
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Lozano, Arvie1941PHI+13N+25B+11N+10B+4N5.013.015.015.002398+7.2
2YOMVILATH, SOUMINTA1513LAO+23N+14B=8N+21B+10N4.512.014.512.751909+40.4
3Wang, Zirui(SC)1710CHN+26N+5B+17N4B+8N4.014.516.512.501655-6.0
4Fan, Yupan1557CHN+22N+18B+30N+3N1B4.014.515.510.501826+24.4
5FIDE 177021430+7B3N+?B+19N+16B4.014.014.010.009100.0
6Senglek, Khonsavanh1608LAO+29N30B+9B+20N+15B4.011.512.511.502256+6.0
7Tan, Zhiyuan0CHN5N+26B+?N+?B+11N4.09.09.05.0015470.0
8Chi YangCM1749LAO+28B+27N=2B+12N3B3.513.515.59.251420-33.6
9NGUYEN, SUNJON KAYDEN1456LAO+33N=21B6N+22B+17N3.512.012.06.75808-12.0
10Vilaphen, Phakthong1683LAO+24B+12N+16B1N2B3.015.518.08.50928-36.0
11Maly InthavongWCM1552LAO+34B+15N1B+30N7B3.013.013.04.001141-3.6
12Fan, Xiang0CHN+?N10B+18N8B+26N3.011.511.55.009160.0
13MANALO, SEAN MICHAEL0LAO1B+32N+27B16N+30B3.011.011.53.5011410.0
14FIDE 177025340+?B2N+31B15N+28B3.010.510.53.007150.0
15FIDE 177019880+?N11B+?N+14B6N3.010.010.03.0015410.0
16FIDE 177024700+?N+?B10N+13B5N3.010.010.03.008830.0
17SISAMOUTH, CHANTHAVISAP0LAO+?N+?B3B+28N9B3.09.59.52.0014170.0
18FIDE 177025850+?B4N12B+?N+?B3.07.07.00.007600.0
19VILAPHEN, BOUNLED0LAO+?N+?B21N5B+?B3.06.56.50.0014420.0
20SENGPHACHAN, BOUNTHENGNOY0LAO?N+?B+25N6B+?N3.06.06.02.0014260.0
21FIDE 177026070+31B=9N+19B2N25B2.513.014.05.7512930.0
22FIDE 1770224004B=?N+?B9N+?N2.57.57.50.0013540.0
23FIDE 1770257702B=?N+?B+27NF2.56.56.52.007150.0
24FIDE 17702364010N?B+33N=?B+?N2.53.03.00.0012900.0
25FIDE 3434678650F1N20B+29B+21N2.012.512.54.5011410.0
26FIDE 1770235603B7N+32B+?N12B2.011.511.50.509100.0
27FIDE 177023990+?N8B13N23B+31N2.010.010.01.009490.0
28MANICHITH, NAMPHET0LAO8N+?B+?N17B14N2.09.59.50.0016660.0
29FIDE 1770173206B+?B?N25N+?B2.06.06.00.007350.0
30SUELO, RYZIA LEI ZHEYSHA0LAOF+6N4B11B13N1.014.014.04.0014480.0
31FIDE 17701970021N+33B14N?B27B1.07.57.50.007830.0
32FIDE 177025420?N13B26NF=?B0.55.05.00.006220.0
33FIDE 1770249609B31N24B?N?B0.07.07.00.006560.0
34FIDE 17702569011N?B?NFF0.03.03.00.007520.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets