18th Avicenna International Chess Tournament 2025 -(C)

Open SwissStandard

84 players participated in this 11-round tournament, held from 24 Aug 2025 to 31 Aug 2025 in Hamedan, Iran. Top 10 Elo average was 1625, and top seed was Kian Jabbari Hesabi (🇮🇷 IRI, 1670).

Alireza Abdollahi Lakeh (🇮🇷 IRI, 1618) won with 10.0/11, ahead of Rozhan Hasani Nourian (9.5) and Arka Raghibdoust (8.0). Abdollahi Lakeh shared the lead from round 5 and won solo starting round 6.

The biggest upset came in round 2: Ayda Roohi (1455) beat Amirmahdi Farjoud (1670), a +215-point gap.

Location

🇮🇷Hamedan, Iran

Dates

24 Aug 2025 → 31 Aug 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 11 rounds

Top seed

🇮🇷Kian Jabbari Hesabi1670

Avg top 10

1,625

Participants

Federations · 1 represented

🇮🇷Iran×67

Top 3

🥇
Alireza Abdollahi Lakeh
🇮🇷IRI·1618
10.0pts·1914perf+115.6
🥈
Rozhan Hasani Nourian
🇮🇷IRI·1488
9.5pts·1810perf+133.6
🥉
Arka Raghibdoust
🇮🇷IRI·1661
8.0pts·1703perf+18.4

How it unfolded

Top 6 · 11 rounds

Alireza Abdollahi Lakeh led from R6; +0.5-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R6.

Co-leaders

Abdollahi Lakeh10Hasani Nourian9.5Hashemi8Raghibdoust8Gholami8Lavvafzadeh7.5

R6–R11 · LEAD HELD

Alireza Abdollahi Lakeh held the sole lead from R6 through R11 without losing it.

R9 · HEAD-TO-HEAD · WINNER VS 2ND

Alireza Abdollahi Lakeh lost to Rozhan Hasani Nourian (Black).

WIN STREAKS · 3 top finishers

Alireza Abdollahi Lakeh 8 wins (R1–R8)Rozhan Hasani Nourian 5 wins (R7–R11)Hirad Hashemi 5 wins (R2–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Alireza Abdollahi Lakeh	*	0	1	1
2Rozhan Hasani Nourian	1	*	1	0
3Hirad Hashemi	0	0	*	—
4Arka Raghibdoust	0	1	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	R10	R11	Pts	Bu C1	Bu	SB	Perf	Δ
1	Abdollahi Lakeh, Alireza	1618	IRI	+77N	+39B	+5N	+31B	+7N	+3N	+4B	+6B	−2N	+13N	+8B	10.0	74.5	77.5	68.00	1914	+115.6
2	Hasani Nourian, Rozhan	1488	IRI	+37B	+56N	−3B	+40N	+22B	=13N	+17B	+10N	+1B	+4N	+7N	9.5	72.5	77.5	66.00	1810	+133.6
3	Raghibdoust, Arka	1661	IRI	+67N	+24B	+2N	+18B	+6N	−1B	=9N	=8B	=7N	=5B	+26N	8.0	76.5	80.5	55.25	1703	+18.4
4	Hashemi, Hirad	0	IRI	−51N	+70B	+44N	+24B	+19N	+18B	−1N	+23B	+6N	−2B	+13B	8.0	70.5	74.5	50.00	1694	+152.4
5	Gholami, Rayan	1464	IRI	+36B	+47N	−1B	=28N	=38B	+52N	=27B	+12N	+21B	=3N	+14B	8.0	68.0	73.0	50.25	1616	+48.8
6	Termeh, Arsam	1625	IRI	+74B	+27N	+29B	+11N	−3B	+16N	+7B	−1N	−4B	=10N	+21B	7.5	74.0	77.5	47.75	1617	-1.4
7	Jabbari Hesabi, Kian	1670	IRI	+81B	+23N	+19B	+51N	−1B	+8B	−6N	+22N	=3B	+17N	−2B	7.5	73.5	75.5	44.50	1664	+1.2
8	Arvan, Rayan	1630	IRI	+69N	+30B	=20N	+43B	+51B	−7N	+29B	=3N	=13B	+9N	−1N	7.5	69.0	73.0	44.75	1622	-3.2
9	Lavvafzadeh, Mohammad Yasin	0	IRI	+17B	−19N	+21B	+14N	+10B	+53N	=3B	−13N	+29B	−8B	+33N	7.5	68.5	73.5	48.50	1633	0.0
10	Rahbar, Shahan	1477	IRI	−26N	+82B	+48N	+42B	−9N	+43B	+30N	−2B	+39N	=6B	+19N	7.5	65.0	67.0	40.25	1690	+66.8
11	Nasrollahi, Iliya	1564	IRI	+32N	+42B	+26N	−6B	−20N	+34B	−23N	+52B	+41N	=25B	+17N	7.5	62.5	67.5	43.75	1545	-7.7
12	Aghaei, Sina	1504	IRI	+61B	=38N	+41B	−13N	−28B	+69N	+26N	−5B	+27N	+20B	+25N	7.5	61.5	65.5	41.75	1474	-17.6
13	Farjoud, Amirmahdi	1670	IRI	+35N	−14B	+67N	+12B	+23N	=2B	+20N	+9B	=8N	−1B	−4N	7.0	76.0	80.0	46.50	1510	-66.0
14	Roohi, Ayda	1455	IRI	+78B	+13N	−51N	−9B	+68N	−26B	+60N	+31B	+32N	+33B	−5N	7.0	60.5	63.5	37.00	1609	+34.0
15	Mehrabi, Farnam	0	IRI	−20N	+?N	−17B	+71B	−25N	+58B	+44N	+34B	+23N	−26B	+30N	7.0	58.5	58.5	33.00	1482	0.0
16	Mansoori, Ava	1459	IRI	+79N	−31B	+68N	+32B	+43N	−6B	−18N	−26B	+70N	+52B	+35N	7.0	56.5	59.5	33.50	1404	-11.6
17	Ranjbar, Mersana	1485	IRI	−9N	+80B	+15N	+55B	=30N	+41B	−2N	+24B	+18N	−7B	−11B	6.5	68.5	71.0	36.00	1515	+8.4
18	Mogheyseh, Fatemeh	1541	IRI	+73B	+22N	+28B	−3N	+27B	−4N	+16B	=29N	−17B	−21N	+39B	6.5	66.0	69.5	37.50	1475	-30.8
19	Abedi, Barsam	1527	IRI	+65N	+9B	−7N	=39B	−4B	+35N	−40B	+45N	+28B	+22N	−10B	6.5	65.5	70.0	38.75	1363	-65.6
20	Beygmohamadi, Parham	1466	IRI	+15B	+54N	=8B	+38N	+11B	−29N	−13B	=53N	=22B	−12N	+40B	6.5	65.0	70.0	40.00	1529	+28.8
21	Soozani, Barana	1490	IRI	+60N	−43B	−9N	+79B	+48N	+32B	=24N	+27B	−5N	+18B	−6N	6.5	64.0	67.0	35.25	1500	+0.4
22	Ghorbani Jam, Atrin	1423	IRI	+70N	−18B	+71N	+25B	−2N	+51B	+33N	−7B	=20N	−19B	+44N	6.5	63.5	67.5	34.25	1531	+53.6
23	Esmaeilnezhad, Parsa	1454	IRI	+68N	−7B	+79N	+58B	−13B	+38N	+11B	−4N	−15B	=42N	+47B	6.5	62.5	65.5	33.25	1464	+3.6
24	Karimi Nikkhah, Amirali	1451	IRI	+49B	−3N	+52B	−4N	+56B	+47N	=21B	−17N	−35B	+46N	+38B	6.5	62.0	67.0	35.25	1342	-28.8
25	Golzari Shayesteh, Mohamad Reza	1481	IRI	−56B	+61N	+36B	−22N	+15B	+42N	=28B	=40N	+38B	=11N	−12B	6.5	62.0	66.5	38.00	1453	-11.6
26	Lotfiei, Meysam	0	IRI	+10B	+57N	−11B	−41N	+62B	+14N	−12B	+16N	F	+15N	−3B	6.0	67.0	71.5	38.00	1538	0.0
27	Najafi, Delsa	1446	IRI	+59N	−6B	+50N	+33B	−18N	+31B	=5N	−21N	−12B	+45B	=34N	6.0	65.0	70.0	35.00	1353	-59.2
28	Badamchi, Amir Ali	1421	IRI	+45N	+33B	−18N	=5B	+12N	=30B	=25N	−39B	−19N	=31B	+52N	6.0	64.0	69.0	37.25	1451	+12.4
29	Bordbar, Mohammad Mehdi	1466	IRI	+48N	+58B	−6N	+63B	+31N	+20B	−8N	=18B	−9N	=35B	−32B	6.0	64.0	68.5	33.75	1389	-21.2
30	Bashghare, Mohammadrafe	1447	IRI	+52B	−8N	+46B	+62N	=17B	=28N	−10B	−38N	+43B	+71N	−15B	6.0	60.5	64.5	30.75	1370	-32.0
31	Validabadi, Lena	0	IRI	+?B	+16N	+53B	−1N	−29B	−27N	+81B	−14N	+36B	=28N	=51B	6.0	60.0	60.0	25.50	1484	0.0
32	Hazrati, Mohammad Emad	0	IRI	−11B	+84N	+57B	−16N	+54B	−21N	+47B	+62N	−14B	F	+29N	6.0	59.0	59.5	26.50	1458	+11.6
33	Kiasi, Mahak	1513	IRI	+66B	−28N	+56B	−27N	+61B	+55N	−22B	+42N	+40B	−14N	−9B	6.0	58.5	63.0	30.00	1362	-41.6
34	Safavi, S Arsha	1424	IRI	+46B	−51B	=45N	=72B	+58N	−11N	+36B	−15N	=47B	+63N	=27B	6.0	57.5	61.0	31.25	790	-22.4
35	Daneshpour, S ahoora	0	IRI	−13B	=78N	+?B	−53N	+37B	−19B	+54N	+72B	+24N	=29N	−16B	6.0	55.5	55.5	25.50	1349	0.0
36	Mirzaei, Arad	0	IRI	−5N	+?B	−25N	+44B	−55N	+63B	−34N	+58B	−31N	+54B	+71B	6.0	55.5	55.5	24.00	1264	0.0
37	Javaheri Piruz, Navid	0	IRI	−2N	−55B	+74B	=64N	−35N	=57B	+76N	−54B	+67N	+70B	+58N	6.0	51.5	55.0	24.75	1320	0.0
38	Heydari, Helia	0	IRI	+44N	=12B	+72N	−20B	=5N	−23B	+51N	+30B	−25N	=41B	−24N	5.5	63.5	67.0	30.50	1442	+20.4
39	Tajbakhshian, Radmehr	1430	IRI	+84B	−1N	+54B	=19N	−53B	+45N	=41B	+28N	−10B	=51N	−18N	5.5	62.5	63.0	25.50	1392	-18.4
40	Khazaei, Golsa	1428	IRI	−43N	+60B	+59N	−2B	+50N	=72B	+19N	=25B	−33N	=44B	−20N	5.5	61.5	65.0	29.75	1369	-19.2
41	Mahboobian, Mohammad Taha	1448	IRI	+50N	=53B	−12N	+26B	+45B	−17N	=39N	+71B	−11B	=38N	−42B	5.5	60.0	64.0	29.00	1268	-47.6
42	Aghayani, Mohamad Amin	1400	IRI	+64B	−11N	+76B	−10N	F	−25B	+43N	−33B	+54N	=23B	+41N	5.5	60.0	63.5	27.25	1289	-38.8
43	Sahab Roshan, Mehrad	0	IRI	+40B	+21N	+62B	−8N	−16B	−10N	−42B	+81N	−30N	+55B	=57B	5.5	60.0	62.0	26.00	1416	0.0
44	Ashtarani, Mahdiyar	1530	IRI	−38B	+66N	−4B	−36N	+73B	+79N	−15B	+68N	+59B	=40N	−22B	5.5	55.5	58.5	22.75	1092	-70.0
45	Shahsavand, Ali Reza	0	IRI	−28B	+73N	=34B	+80B	−41N	−39B	+64N	−19B	+61N	−27N	+62B	5.5	52.5	55.0	22.50	1267	0.0
46	Samadi, Mohammad Sepehr	0	IRI	−34N	+83B	−30N	−65B	+67N	−60B	+48N	=61B	+49N	−24B	+66N	5.5	52.0	53.5	23.25	646	0.0
47	Zolfaghari Moheb, Ronika	0	IRI	+?N	−5B	−63N	+83B	+65N	−24B	−32N	+60B	=34N	+81B	−23N	5.5	50.5	50.5	16.00	1074	0.0
48	Mehrfar, Mohammad Kian	0	IRI	−29B	+?N	−10B	+57N	−21B	−62N	−46B	+?N	=69B	+59N	+63B	5.5	48.5	48.5	16.50	1260	0.0
49	FIDE 536079863	0	—	−24N	−67B	+77N	+81B	F	−61N	+75B	=63N	−46B	+74B	+65N	5.5	45.0	47.0	18.75	648	0.0
50	Nejati, Naria	0	IRI	−41B	+75N	−27B	+73N	−40B	−81N	+56B	+69N	−51B	=62N	+?B	5.5	44.5	44.5	18.25	1178	0.0
51	Kazemi Nasab, Arvin	1614	IRI	+4B	+34N	+14B	−7B	−8N	−22N	−38B	F	+50N	=39B	=31N	5.0	65.0	68.0	32.25	1441	-74.4
52	FIDE 536047236	0	—	−30N	+77B	−24N	+67B	+63N	−5B	+55B	−11N	+62B	−16N	−28B	5.0	59.0	62.0	21.00	1175	0.0
53	Taghadosi, Rayan	1658	IRI	+75B	=41N	−31N	+35B	+39N	−9B	+72N	=20B	F	F	F	5.0	56.0	56.0	24.50	1562	-13.6
54	FIDE 536091197	0	—	+55N	−20B	−39N	+66B	−32N	+65B	−35B	+37N	−42B	−36N	+75B	5.0	55.5	59.0	23.50	636	0.0
55	Khazaei, Mehrsun	1422	IRI	−54B	+37N	+64B	−17N	+36B	−33B	−52N	−59N	+72B	−43N	+68B	5.0	53.5	57.0	24.00	702	0.0
56	Lotfi, Ilia	0	IRI	+25N	−2B	−33N	+76B	−24N	−71B	−50N	−67B	+?B	+80N	+81N	5.0	50.0	50.0	14.50	1295	0.0
57	Shoashargh, Ardiyan	1511	IRI	+82N	−26B	−32N	−48B	=66N	=37N	−79B	=65B	+76N	+61B	=43N	5.0	49.0	51.0	20.25	626	-25.2
58	Soltan Beygi, Mohammad	0	IRI	+?B	−29N	+69B	−23N	−34B	−15N	+?B	−36N	+77B	+68N	−37B	5.0	48.5	48.5	11.00	644	0.0
59	Osat, Roham	0	IRI	−27B	+74N	−40B	−61N	−81N	+83B	+65N	+55B	−44N	−48B	+67N	5.0	46.0	47.5	18.50	645	0.0
60	Janati, Kiarash	0	IRI	−21B	−40N	−75B	+?N	+?B	+46N	−14B	−47N	−68B	+77N	+70B	5.0	44.5	44.5	12.50	670	0.0
61	Jamali Pour, Yekta	0	IRI	−12N	−25B	+?N	+59B	−33N	+49B	−62B	=46N	−45B	−57N	+73B	4.5	54.5	54.5	16.75	715	0.0
62	Yaghoubi, Sepehr	1540	IRI	+83N	+63B	−43N	−30B	−26N	+48B	+61N	−32B	−52N	=50B	−45N	4.5	54.0	55.5	18.75	648	-50.4
63	Baharlooei, Barsa	0	IRI	+71B	−62N	+47B	−29N	−52B	−36N	+78N	=49B	+64N	−34B	−48N	4.5	52.5	55.5	19.75	677	0.0
64	FIDE 536091200	0	—	−42N	+65B	−55N	=37B	−69N	+66B	−45B	+73N	−63B	−?N	+72B	4.5	46.5	46.5	19.00	617	0.0
65	FIDE 536001708	0	—	−19B	−64N	+?B	+46N	−47B	−54N	−59B	=57N	+?B	+72N	−49B	4.5	46.0	46.0	11.50	1332	0.0
66	FIDE 428032675	0	—	−33N	−44B	+?B	−54N	=57B	−64N	+?B	+74B	−71N	+69N	−46B	4.5	43.0	43.0	10.00	1224	0.0
67	Eidivandi, Ahoora	0	IRI	−3B	+49N	−13B	−52N	−46B	+?N	−68B	+56N	−37B	+78N	−59B	4.0	54.0	54.0	13.50	866	0.0
68	FIDE 536009598	0	—	−23B	+81N	−16B	+75N	−14B	−77N	+67N	−44B	+60N	−58B	−55N	4.0	51.5	53.5	14.50	667	0.0
69	Fotrosi, Arvin	0	IRI	−8B	F	−58N	+78N	+64B	−12B	=70N	−50B	=48N	−66B	+74N	4.0	50.5	50.5	15.75	777	0.0
70	FIDE 536080225	0	—	−22B	−4N	−73B	+74N	=75B	+80N	=69B	+77N	−16B	−37N	−60N	4.0	50.0	52.5	12.75	635	0.0
71	Yousefi, Amir Arsalan	0	IRI	−63N	F	−22B	−15N	+84B	+56N	+77B	−41N	+66B	−30B	−36N	4.0	48.5	48.5	13.00	633	0.0
72	Zafari Yekta, Nima	0	IRI	+?B	=76N	−38B	=34N	+80B	=40N	−53B	−35N	−55N	−65B	−64N	3.5	48.0	48.0	10.00	1285	0.0
73	FIDE 536079901	0	—	−18N	−45B	+70N	−50B	−44N	=?N	+?B	−64B	−74N	+76B	−61N	3.5	43.0	43.0	7.50	698	0.0
74	FIDE 536080098	0	—	−6N	−59B	−37N	−70B	=?B	+84N	+80B	−66N	+73B	−49N	−69B	3.5	43.0	43.0	6.50	825	0.0
75	FIDE 536080160	0	—	−53N	−50B	+60N	−68B	=70N	=78B	−49N	=76B	−?N	+83B	−54N	3.5	42.0	42.0	11.75	858	0.0
76	FIDE 536091219	0	—	=80N	=72B	−42N	−56N	F	+?B	−37B	=75N	−57B	−73N	+84B	3.5	38.0	38.0	5.25	668	0.0
77	Hamzezadeh, Spehr	0	IRI	−1B	−52N	−49B	+?N	F	+68B	−71N	−70B	−58N	−60B	+78N	3.0	49.0	49.0	7.00	815	0.0
78	FIDE 536082635	0	—	−14N	=35B	−80N	−69B	+83N	=75N	−63B	+?N	F	−67B	−77B	3.0	38.0	38.0	6.25	685	0.0
79	Mohamad Alipour, Arshia	0	IRI	−16B	+?N	−23B	−21N	+?N	−44B	+57N	F	F	F	F	3.0	35.5	35.5	5.00	1239	0.0
80	FIDE 536000477	0	—	=76B	−17N	+78B	−45N	−72N	−70B	−74N	−?B	+82N	−56B	−?N	2.5	36.5	36.5	6.75	691	0.0
81	Dehghan, Ailin	0	IRI	−7N	−68B	F	−49N	+59B	+50B	−31N	−43B	F	−47N	−56B	2.0	52.5	54.5	10.50	868	0.0
82	FIDE 536091170	0	—	−57B	−10N	F	−?N	−?B	−?N	+84B	F	−80B	F	+83N	2.0	20.5	20.5	2.00	698	0.0
83	FIDE 536080381	0	—	−62B	−46N	=84B	−47N	−78B	−59N	F	F	+?B	−75N	−82B	1.5	31.5	31.5	0.25	744	0.0
84	FIDE 536047171	0	—	−39N	−32B	=83N	−?B	−71N	−74B	−82N	−?N	F	−?B	−76N	0.5	26.0	26.0	0.75	630	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Hashemi, HiradIRI
+152.4
8.0 pts · #4
2Hasani Nourian, RozhanIRI
+133.6
9.5 pts · #2
3Abdollahi Lakeh, AlirezaIRI
+115.6
10.0 pts · #1

Top rating losers

1Kazemi Nasab, ArvinIRI
-74.4
5.0 pts · #20
2Ashtarani, MahdiyarIRI
-70.0
5.5 pts · #51
3Farjoud, AmirmahdiIRI
-66.0
7.0 pts · #18

Biggest upsets

R2+215 Elo gap
Roohi, Ayda1455 beat Farjoud, Amirmahdi1670
R6+191 Elo gap
Ghorbani Jam, Atrin1423 beat Kazemi Nasab, Arvin1614
R11+182 Elo gap
Hasani Nourian, Rozhan1488 beat Jabbari Hesabi, Kian1670