The Rooky Monthly FIDE Rated September 2025 - Standard Open

Open SwissStandard

43 players participated in this 5-round tournament, held from 06 Sept 2025 to 07 Sept 2025 in Bangkok, Thailand. 3 titled players from 8 federations. Top 10 Elo average was 1995, and top seed was Arsens Batashevs (🇱🇻 LAT, 2181).

Arsens Batashevs (🇱🇻 LAT, 2181) won with 5.0/5, ahead of Masahiro Baba (4.5) and N. Tarun (4.0). Batashevs won solo starting round 4.

The biggest upset came in round 2: Sarocha Kittisiripan (1433) beat NAMPHET MANICHITH (1640), a +207-point gap.

Location

🇹🇭Bangkok, Thailand

Dates

06 Sept 2025 → 07 Sept 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 5 rounds

Top seed

🇱🇻Arsens Batashevs2181

Avg top 10

1,995

Participants

Titled players · 3

FM×3

Federations · 8 represented

🇹🇭Thailand×22

🇷🇺Russia×4

🇮🇳India×2

🇱🇦Laos×2

🇩🇰Denmark×2

🇵🇭Philippines×2

🇨🇳China×1

🇦🇺Australia×1

Top 3

🥇
Arsens Batashevs
🇱🇻LAT·2181
5.0pts·2724perf+21.6
🥈
FMMasahiro Baba
🇯🇵JPN·2147
4.5pts·2237perf+9.6
🥉
N. Tarun
🇮🇳IND·1916
4.0pts·1968perf+9.0

How it unfolded

Top 6 · 5 rounds

Arsens Batashevs led from R4; +0.5-point edge over the runner-up.

Co-leaders

Batashevs5Baba4.5Bruun4Tarun4Lanada3.5Gutsulyak3.5

R4–R5 · LEAD HELD

Arsens Batashevs held the sole lead from R4 through R5 without losing it.

WIN STREAKS · 2 top finishers

Arsens Batashevs 5 wins (R1–R5)FM Masahiro Baba 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Arsens Batashevs	*	—	—	—
2FMMasahiro Baba	—	*	—	1
3Henrik Emil Bruun	—	—	*	0
4N. Tarun	—	0	1	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Batashevs, Arsens	2181	LAT	+32N	+21B	+13N	+9B	+10N	5.0	10.5	12.0	12.00	2724	+21.6
2	Baba, MasahiroFM	2147	JPN	+16B	=18N	+38N	+3B	+9N	4.5	12.0	13.0	11.75	2237	+9.6
3	N. Tarun	1916	IND	+31N	+6B	+4N	−2N	+12B	4.0	15.0	16.5	12.00	1968	+9.0
4	Bruun, Henrik Emil	1916	DEN	+23B	+17N	−3B	+18N	+22B	4.0	11.0	13.0	9.00	1933	+5.2
5	Gutsulyak, Nikolay	1831	RUS	+37N	+11B	=8N	−10B	+13N	3.5	12.0	13.0	8.25	1941	+13.4
6	Ishchenko-Giller, Matvii	1523	UKR	+25B	−3N	=7B	+35N	+15B	3.5	12.0	13.0	7.25	1835	+46.4
7	Lanada, Steven	0	PHI	+40N	−13B	=6N	+26B	+21N	3.5	10.0	11.0	6.75	1687	0.0
8	Ko Ko OhnFM	2032	MYA	+42N	F	=5B	+14B	+11N	3.5	9.5	9.5	7.75	1974	-0.9
9	Salvador, Louie	2141	PHI	+33N	+14B	+12N	−1N	−2B	3.0	15.0	16.5	7.00	1952	-15.6
10	Wiwatanadate, PoompongFM	2053	THA	+36B	+15N	F	+5N	−1B	3.0	12.0	12.0	7.00	2022	+1.0
11	Li, Zhiyao	0	CHN	+26B	−5N	+24B	+17N	−8B	3.0	11.5	13.5	6.50	1726	0.0
12	Ritzerfeld, Willem	0	NED	+24B	+22N	−9B	+21B	−3N	3.0	11.0	13.0	6.00	1849	0.0
13	Rohland, Michael Karl	1866	CAN	+39B	+7N	−1B	=15N	−5B	2.5	14.5	15.5	5.75	1676	-19.2
14	Lisin, Maksim	1644	RUS	+28B	−9N	+23B	−8N	=16B	2.5	11.0	13.0	5.25	1659	-6.0
15	Siripatvanich, Nonglak	1576	THA	+27B	−10B	+31N	=13B	−6N	2.5	11.0	12.5	4.75	1612	0.0
16	Ruengjirachuporn, Chantat	1490	THA	−2N	+43B	−21N	+25B	=14N	2.5	11.0	11.0	3.25	1452	-4.8
17	Pinphetsawan, Sirikwan	1513	THA	+41N	−4B	=27N	−11B	+31N	2.5	10.5	11.5	3.50	1674	+6.2
18	Akhmetov, Rail	1652	RUS	+43N	=2B	F	−4B	+23N	2.5	10.5	10.5	4.25	1801	+9.6
19	Ayaan Mukherjee	1580	IND	F	−38B	+25N	=20B	+34N	2.5	7.0	7.0	4.75	1617	+3.2
20	Dumoulin, Peissone	0	THA	+35B	F	F	=19N	+24B	2.5	5.5	5.5	4.25	1634	0.0
21	Seela, Prajuk	1660	THA	+34B	−1N	+16B	−12N	−7B	2.0	14.0	15.5	4.00	1778	+7.8
22	Nielsen, Karsten Eivind	1867	DEN	F	−12B	+33N	+29B	−4N	2.0	10.5	10.5	3.50	1700	-6.8
23	Wongbunchailert, Rawat	1437	THA	−4N	+41B	−14N	+40B	−18B	2.0	10.0	11.0	2.00	1488	+3.2
24	Sriraksa, Phongkit	1561	THA	−12N	+37B	−11N	+36B	−20N	2.0	9.5	10.5	2.00	2242	+13.6
25	Ruengjirachuporn, Nantat	0	THA	−6N	+42B	−19B	−16N	+35B	2.0	9.5	10.0	1.50	1459	0.0
26	Norman, Angel	1591	AUS	−11N	+39B	F	−7N	+33B	2.0	9.0	9.0	2.50	2253	+25.2
27	Phanthajarunithi, Napat	0	THA	−15N	+36N	=17B	=34B	−30N	2.0	8.5	9.5	3.00	1443	0.0
28	Chanwittayanuchit, Worakorn	0	THA	−14N	=33B	−29N	=42B	+36N	2.0	7.0	7.5	2.00	1509	0.0
29	Botkate, Chanaporn	0	THA	F	F	+28B	−22N	+32B	2.0	5.5	5.5	3.50	1682	0.0
30	Chongstitwattana, Cholapat	1592	THA	F	F	F	+37N	+27B	2.0	3.0	3.0	3.00	2212	+5.4
31	Kittisiripan, Sarocha	1433	THA	−3B	+35N	−15B	=32N	−17B	1.5	10.5	11.5	1.75	1463	+3.2
32	Khuijanthuek, Kannika	1499	THA	−1B	−34N	+39N	=31B	−29N	1.5	10.0	11.0	1.75	1458	-14.8
33	YOMVILATH, SOUMINTA	1482	LAO	−9B	=28N	−22B	+41N	−26N	1.5	9.0	10.0	2.00	980	-20.8
34	Laogumnerd, Kritpithak	1424	THA	−21N	+32B	F	=27N	−19B	1.5	8.0	8.0	2.50	1454	+4.0
35	MANICHITH, NAMPHET	1640	LAO	−20N	−31B	+42N	−6B	−25N	1.0	9.5	10.0	0.50	1340	-47.6
36	Pengsee, Pemika	1473	THA	−10N	−27B	+43N	−24N	−28B	1.0	9.0	9.0	0.00	916	-18.4
37	Lisin, Sergey	1429	RUS	−5B	−24N	F	−30B	+42N	1.0	8.0	8.0	0.50	1408	-4.4
38	Srisawang, Piroon	1808	THA	F	+19N	−2B	F	F	1.0	7.0	7.0	2.50	1864	+1.8
39	Kaveevorayan, Nichakarn	1429	THA	−13N	−26N	−32B	+43B	−40N	1.0	7.0	7.0	0.00	827	-41.2
40	Jongatireklap, Wacharaphol	1594	THA	−7B	F	F	−23N	+39B	1.0	6.5	6.5	1.00	1431	-8.8
41	Wong, Jinn	0	THA	−17B	−23N	F	−33B	+43N	1.0	6.0	6.0	0.00	678	0.0
42	Chimyam, Jakkawan	1441	THA	−8B	−25N	−35B	=28N	−37B	0.5	8.5	9.5	1.00	831	-17.2
43	FIDE 6214843	0	—	−18B	−16N	−36B	−39N	−41B	0.0	7.0	8.0	0.00	704	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Ishchenko-Giller, MatviiUKR
+46.4
3.5 pts · #12
2Norman, AngelAUS
+25.2
2.0 pts · #14
3Batashevs, ArsensLAT
+21.6
5.0 pts · #1

Top rating losers

1MANICHITH, NAMPHETLAO
-47.6
1.0 pts · #36
2Kaveevorayan, NichakarnTHA
-41.2
1.0 pts · #40
3YOMVILATH, SOUMINTALAO
-20.8
1.5 pts · #43

Biggest upsets

R2+207 Elo gap
Kittisiripan, Sarocha1433 beat MANICHITH, NAMPHET1640
R4+157 Elo gap
Wongbunchailert, Rawat1437 beat Jongatireklap, Wacharaphol1594
R4+117 Elo gap
Ishchenko-Giller, Matvii1523 beat MANICHITH, NAMPHET1640