International Chemistry Olympiad. 2023

5/5
Transparency of evaluation
5/5
Assignment uniqueness
5/5
Screening selectivity
3/5
Award selectivity
Credibility
348
participants
89
countries
  1. IChO #55
CountryNameRound 1Round 2ScoreMedal
1CNMao Weijie38.7156.1194.82
Gold
2CNSun Haozhe32.9255.7788.69
Gold
3RUPerov Nikita34.7853.2688.04
Gold
4TRTarak Berkan36.7447.2383.97
Gold
5SGChan Leemen 30.1953.5183.7
Gold
6PLLipiec Michal31.8651.0582.91
Gold
7VNCao Son Dinh35.7146.4382.14
Gold
8CNZhuang Chuyue30.9749.8680.83
Gold
9HUSzabo Marton33.6946.7880.47
Gold
10VNKim Giang Nguyen33.024780.02
Gold
11SGChu Marcus Jian-Hao 30.4148.5979
Gold
12TWChou Yu-Fan33.6745.0978.76
Gold
13GBDiamond Kiran30.847.3578.15
Gold
14DEBudsus Mats33.2544.5677.81
Gold
15AMAsatryan Leonid37.1839.5476.72
Gold
16VNManh Khoi Nguyen31.6844.9476.62
Gold
17JPYamanouchi Mika34.5441.9176.45
Gold
18USSodhi Anurag30.1946.2376.42
Gold
19USWu Phoenix33.8242.4576.27
Gold
20SGSharma Panshul30.1745.8976.06
Gold
21BGLilov Victor 28.6447.1475.78
Gold
22UZNazarov Azizbek34.441.3375.73
Gold
23IRHalaji Mohammad30.5544.6975.24
Gold
24IRTahamtani Torkamani Zahra31.9543.2575.2
Gold
25THChawanasuntornpoj Jiraroj30.2544.6774.92
Gold
26IRMoslemi Zhiar29.145.6974.79
Gold
27SGLee I-Shiang30.5444.2174.75
Gold
28CNWan Changjiang28.6645.5874.24
Gold
29RURosliakov Sergei31.1942.9674.15
Gold
30KRJang Junsung31.4342.6474.07
Gold
31BGAleksandrov Krum32.8141.0273.83
Gold
32TWMa Ching-Chao32.8740.9673.83
Gold
33RUKharisov Vadim2647.7273.72
Gold
34JPMatsusaka Kohei28.84472.8
Gold
35INSrivastava Krish34.3138.4172.72
Gold
36RORistache Vlad Gabriel33.4739.1772.64
Gold
37UZMakhmudov Abdullokh27.7144.7772.48
Gold
38KZBissenali Sanzhar28.7443.6872.42
Gold
39TWLi Pei-Yuan28.7743.5872.35
Gold
40UZHakimova Shahzoda34.7437.3172.05
Silver
41JPSuzuki Haruto30.441.4671.86
Silver
42ILGontmakher Yonatan29.0342.5671.59
Silver
43GBFung Pak Chuen33.9937.5571.54
Silver
44BGGeorgiev Preslav 31.7839.7371.51
Silver
45VNVan Duc Mai29.5241.8671.38
Silver
46KRKim HeeJoon27.5643.7971.35
Silver
47INBansal Avaneesh34.1637.1371.29
Silver
48HUPapp Marcell Imre33.737.471.1
Silver
49CZVestfal Jiri32.7137.9770.68
Silver
50IDLius Bong Kevin31.9438.6770.61
Silver
51LVKargins Daniils29.6740.4470.11
Silver
52JPTanakaTanaka Shun27.1142.9470.05
Silver
53INSingh Aditi30.6539.1569.8
Silver
54KRJun Jimin28.0941.5569.64
Silver
55ILEiger Neta31.7537.8169.56
Silver
56BRAguiar Gabriel35.0934.4169.5
Silver
57AUChen George Zhibo 30.0539.1569.2
Silver
58HUViczian Daniel30.3238.7869.1
Silver
59SAAlHadlaq Mohammad27.941.1869.08
Silver
60KZIlyussizov Rinat31.8637.1569.01
Silver
61USLiu Alice27.6340.8668.49
Silver
62CZHartman Zdenek32.2536.1468.39
Silver
63DESaal Frederike31.7736.5668.33
Silver
64TRAltundag Dilara 28.839.568.3
Silver
65PLOlbrys Piotr26.7941.2368.02
Silver
66BGHristov Yavor29.2538.7467.99
Silver
67THKiratipongvoot Kanissorn28.1839.5267.7
Silver
68RORascarachi Luca Mihai26.6540.9667.61
Silver
69USDuan Mingwen22.1945.1967.38
Silver
70SAAlSaleh Ali28.738.5967.29
Silver
71SKGresak Richard32.5334.6767.2
Silver
72IDAbednego Lincoln Abraham 28.5338.2866.81
Silver
73SEFarnebsck Markus27.6739.0766.74
Silver
74GBDesai-Kinvig Kiran26.3540.1866.53
Silver
75IRSeyedi Diako 25.4240.9766.39
Silver
76PLRozanski Szymon32.5933.7366.32
Silver
77BYShtytsko Antanina29.7136.2765.98
Silver
78TRSekercioglu Azra30.4935.165.59
Silver
79CAGong Harry30.5434.9765.51
Silver
80TRKeskes Mustafa27.8437.6265.46
Silver
81HUNemeskeri Daniel30.3434.9865.32
Silver
82TWWu Zhong-Wei 27.4937.5965.08
Silver
83SAAl Mousa Ali 33.4331.2764.7
Silver
84INKedia Malay23.640.8764.47
Silver
85GBSaritsiri Kotchapun28.9635.3464.3
Silver
86SYHamida Muhammad Ghazal32.1332.0964.22
Silver
87BRMagalhaes Artur31.432.6864.08
Silver
88ATCaliskan Leonard31.5932.163.69
Silver
89SAAlkhalifa Hassan25.2838.3163.59
Silver
90THSae-chueng Peradol32.2531.2363.48
Silver
91RUMikheev Aleksei25.7737.6963.46
Silver
92LTMiliauskas Justas26.9636.3863.34
Silver
93ARRossetti Pablo27.8235.3563.17
Silver
94SINastran Matej29.4533.2562.7
Silver
95SKIlias Tomas34.4628.2462.7
Silver
96RODiaconescu Vlad26.5136.162.61
Silver
97SYOmran Salama26.6235.5262.14
Silver
98FRHazebrouck Matthieu29.1732.861.97
Silver
99MYFu Joyton26.9934.8761.86
Silver
100NZGunson Oliver29.1632.2761.43
Silver
101BYStaubunik Maryia27.2733.861.07
Silver
102SKSkubla Matej29.431.4660.86
Silver
103TMJumayev Yhlas24.6836.0860.76
Silver
104AULin Zhenhuan25.8634.8760.73
Silver
105ILAssis Shoham 29.0131.4760.48
Silver
106GEPeranidze Ketevan23.237.2360.43
Silver
107KZNurlanova Almira30.2530.1260.37
Silver
108BRFonseca Joao Vitor24.5535.860.35
Silver
109RSPoleksic Uros32.3327.8560.18
Silver
110BYSharaichuk Aliaksandr27.2332.6559.88
Silver
111HRKovacic Tom30.5428.5759.11
Bronze
112LVSosko Daniils28.7130.2258.93
Bronze
113KRSeo Chaeone26.1832.4758.65
Bronze
114FRMignon Antoine32.3925.6558.04
Bronze
115UAKomarnytskyi Oleh26.4431.4257.86
Bronze
116FRDupont de Dinechin Philippe29.7427.9557.69
Bronze
117LKKuragodage Thisarindu26.3131.2757.58
Bronze
118PLWarda Mikolaj25.0332.5357.56
Bronze
119ATVecsernyes-Handl Rahel30.3527.2157.56
Bronze
120CALing Brandon27.9129.5157.42
Bronze
121CZRozkovec Erik29.328.0157.31
Bronze
122DEMay Maren27.6729.4757.14
Bronze
123TMAtajanova Aygul21.9735.0857.05
Bronze
124BRCastro Nailton30.1126.6156.72
Bronze
125AZKhalilov Hamid25.6930.5756.26
Bronze
126DKSvaneberg Sarah32.042456.04
Bronze
127BYBaravoi Hleb29.5326.4956.02
Bronze
128UASokolov Oleksandr25.5530.3255.87
Bronze
129UZDilmurodov Sohibjob23.9331.855.73
Bronze
130EESmosljajev Artemi23.2432.3755.61
Bronze
131ARSantilan Tomas31.1224.4155.53
Bronze
132CALiu Joey28.127.455.5
Bronze
133DEKystner Niklas23.5631.9255.48
Bronze
134KZMamyrbekov Bekbolat26.2229.2455.46
Bronze
135NZKumar Jayden29.2826.0555.33
Bronze
136MNAnar Amartuvshin30.8624.2755.13
Bronze
137ILHentz Shon25.0629.8754.93
Bronze
138MDSprincean Leo30.0824.6854.76
Bronze
139LKLenora Robolge24.6129.9554.56
Bronze
140LTTamosiunas Pijus27.0527.4554.5
Bronze
141TMAnnaorazov Yakup20.3534.1454.49
Bronze
142PHFornan Gelraycs Jules28.1326.2254.35
Bronze
143UAOmelianchuk Vladyslav30.523.6754.17
Bronze
144EETali Mihkel30.7223.2153.93
Bronze
145RSPopovic Janko 25.4928.3153.8
Bronze
146ATTaschler Christopher35.2118.5753.78
Bronze
147HRRadesic Kim27.5125.7453.25
Bronze
148LTBabelis Tomas30.6222.6153.23
Bronze
149TMAnnayev Begzada21.9631.1553.11
Bronze
150HRNovak Ema28.824.2253.02
Bronze
151SKPlsek Adam27.3125.3852.69
Bronze
152AZHajizada Nihad28.4124.2852.69
Bronze
153ATMitterlehner Valentin31.2621.3552.61
Bronze
154IDAdyan Dafi Muhammad28.3124.2552.56
Bronze
155AMMkhitaryan Tigran29.0923.1152.2
Bronze
156MKBojadjievski Filip24.327.8652.16
Bronze
157CALalman Henry22.5129.5652.07
Bronze
158AZShafizada Seljan24.5227.4852
Bronze
159ITFerraro Fano Zefiro32.7619.2251.98
Bronze
160UAKamalova Elina24.6726.9651.63
Bronze
161ITGrossi Andrea23.5427.8351.37
Bronze
162GRGeorgeles Dimitrios15.9535.451.35
Bronze
163IDEzra Sarliviano Muhammad27.1824.151.28
Bronze
164AULiu Hanlin24.7926.4851.27
Bronze
165RSVukovic Dunja24.0627.1951.25
Bronze
166HRDelac Viktor24.7726.3351.1
Bronze
167AUWu Shao Yu Bobby23.2927.7251.01
Bronze
168EEKulv Karl Johann26.8524.0150.86
Bronze
169MXMoreno Plascencia Rodrigo25.125.750.8
Bronze
170GRKoundourakis Konstantinos26.4423.7450.18
Bronze
171CUAcosta Mart’nez Cesar Endrise20.0230.1150.13
Bronze
172CZKochan Jakub18.2131.8650.07
Bronze
173PERodriguez Cochachin Daniel22.927.0949.99
Bronze
174LKArachchi Arachchige Don24.1825.7349.91
Bronze
175LKChandrakumar Thuvarahan20.6828.9849.66
Bronze
176MYChin Jia24.6224.8749.49
Bronze
177AMKharatyan Arman21.4927.8649.35
Bronze
178ITDe Masi Luca26.6122.6849.29
Bronze
179LTRinkevicius Augustas24.8723.9748.84
Bronze
180MNBatsuuri Nomin-Undrakh24.723.7948.49
Bronze
181ARAlgarbe Melany27.1121.1948.3
Bronze
182CYMikhaylov Petr25.4222.6348.05
Bronze
183MKVanchoski Mario29.8918.1648.05
Bronze
184ARSirena Santiago23.4924.1147.6
Bronze
185GRKominis-Altanis Odysseas27.320.1647.46
Bronze
186NOSkretteberg Erlend27.1220.247.32
Bronze
187NZSwanney Isla25.7521.4547.2
Bronze
188THLiangbumrung Amasaya16.4230.4346.85
Bronze
189LVLusis Linards18.8428.0146.85
Bronze
190DKLoesch Mikkel27.9818.4446.42
Bronze
191BDMazumder Santu Avishek21.0425.3746.41
Bronze
192PHCasib Mohammad Nur16.2929.9146.2
Bronze
193SIStarec Oman Jakob27.2418.846.04
Bronze
194FIJuhava Nikolas28.3417.6746.01
Bronze
195IESheahan Richard26.219.846
Bronze
196LUOotes Siena26.921945.92
Bronze
197NZSiriwardana Cedric23.3222.4645.78
Bronze
198SYAldarweish Salman17.8527.8945.74
Bronze
199ROSindrestean Darius Alexandru20.42545.4
Bronze
200MKMirchevski Petar27.2417.845.04
Bronze
201MDLeahu Bianca-Sofia19.0825.844.88
Bronze
202NOEilevstjonn Simen25.1419.7444.88
Bronze
203DKPoulsen Alexander16.7927.8844.67
Bronze
204PHAcosta Lemuel 22.3822.0944.47
Bronze
205NLBukkems Guus24.5119.7344.24
Bronze
206UYGarcia Bouza Juan25.8218.4144.23
Bronze
207PTPinto Simone26.4917.3943.88
Bronze
208ISBirgisson Rškkvi28.4215.2743.69
Bronze
209BEGoossens Lowie24.3219.3243.64
Bronze
210DKMoll-Elsborg Anders26.3317.243.53
Bronze
211AZSattarli Daniz14.512943.51
Bronze
212ITSberna Enzo21.7821.6643.44
Bronze
213SEBrannholm Oskar21.6221.5443.16
Bronze
214SYAlhussein Abdulkader12.330.7343.03
Bronze
215KGReshetnikov Ivan19.1923.7942.98
Bronze
216LVSrtelcs Viesturs26.0516.942.95
Bronze
217CUValdes Abreu Erik Jordan17.5925.2242.81
Bronze
218SIZnidarsic Gabriel29.2813.0942.37
Diploma
219MDTeleuca Iulia13.4528.842.25
Diploma
220MKPetrova Marija27.6114.642.21
Diploma
221CHHuber Vivian24.517.5842.08
Diploma
222RSDurdevic Dusan17.2324.7742
Diploma
223NLZwitserloot Kjeld20.6121.3341.94
Diploma
224GRMylonopoulos Stefanos-Rafail26.5714.7141.28
Diploma
225SVChavez Escamilla Luis Ronaldo22.818.4741.27
Diploma
226KGTurdubaev Nurhan21.0919.9341.02
Diploma
227PEGilvonio Saez Manuel21.2919.6440.93
Diploma
228AMPetrosyan Yuri22.2318.5940.82
Diploma
229PHCalubaquib Kiersten Gene16.524.1740.67
Diploma
230PKRafay Abdul18.5922.0840.67
Diploma
231FIPsykks Paulus26.7113.9140.62
Diploma
232MYTong Yen19.7420.7640.5
Diploma
233SIMohoric Nejc20.9619.4140.37
Diploma
234NPShah Nishtha25.3314.9840.31
Diploma
235FIKoskinen Aino23.8416.2840.12
Diploma
236TJRaufova Sarvinoz24.515.3839.88
Diploma
237IEMcSweeney Isobel22.9516.6639.61
Diploma
238NLVan der Waal Jesse20.4119.0839.49
Diploma
239NOZabelina Yuliya22.6816.4239.1
Diploma
240PTSousa Tiago21.6817.0538.73
Diploma
241FRLaunay Gaitan22.6715.938.57
Diploma
242MNBold Ermuunbold21.6716.5938.26
Diploma
243NLVerhoeff Verff21.8916.2438.13
Diploma
244EESuvi Karlis16.9421.1438.08
Diploma
245GEMetreveli Nickolas21.5816.2937.87
246MDZadic Andrian18.719.1537.85
247ESFuentes Campos Carmen20.5917.2137.8
248MYNg Fang26.6611.0737.73
249SEPettersson Emil20.5516.7137.26
250LUBernier Nina25.3611.8437.2
251CHNeuhaus Sabine27.229.8437.06
252IEMorgan-Doyle Noah15.5421.4136.95
253SVTorres Guillen Claudia Sofia25.2611.5436.8
254CRMora Urena Henry Johao28.398.3236.71
255MXBello Gonzalez Ionathan15.2521.4336.68
256FISulander Severi16.1920.3136.5
257PTArmada Ana20.9214.8235.74
258QAKhan Ibrahim23.0812.6635.74
259GEDokadze IIlia19.2916.4435.73
260GEUtiashvili Andrea19.3515.9835.33
261BEPrincen Edouard19.9514.8234.77
262LUPeuscet Remi25.628.9134.53
263MNZanjan Erkhesnabil19.1315.3834.51
264PKIsmail Asma13.221.2934.49
265VEEvia Jesoes23.4110.7734.18
266MEDamjanovic Aleksa23.3110.7634.07
267ISGunnarsson Jon23.8110.0633.87
268CHHauenstein Andrin24.858.8133.66
269ESGarrido Bourkhaeva Sergio11.7721.7433.51
270PEPrado Visconte Rodrigo14.3218.8833.2
271AEBijulal Ardhra23.529.3132.83
272CHMartinetti Alex18.114.6532.75
273ESMartin Rodriguez Miguel19.1913.5232.71
274PKAskari Syed14.9517.6432.59
275QAAl-Kaabi Hassan25.726.832.52
276NPTimsina Atharva17.6314.8632.49
277PKTahir Abdul17.7414.4132.15
278PEEscalante Porlles Angela21.5510.4932.04
279NOViksoy Vilde22.49.4331.83
280CYFylaktou Marios21.679.6531.32
281ZAParker Faraaz21.929.2931.21
282CRSancho Dive Alexander21.19.9831.08
283BDHayder Leehan17.5413.2430.78
284CYDimitra Eleni Nakou18.9611.5830.54
285OMAl-Habsi Mohammed13.5416.9830.52
286CYAntoniou Antonios21.499.0230.51
287AEAhmed Alhammadi Nouf Ahmed Mohamed24.266.0630.32
288UYFerreira Rampa Lautaro10.1520.0230.17
289NGIgue Osewuike13.6516.4730.12
290SELedin Alexander11.5118.4729.98
291VEOsilia Taborda Nicolas18.3411.6129.95
292MXDiaz Mojica Julian13.5316.0229.55
293UYStolovas Leonel17.8411.6329.47
294IERyzwanowicz Dominika22.796.6729.46
295OMAl-Dhafri Alrabie17.5711.1928.76
296KGMusabekova Roza17.3811.0628.44
297AEDwivedi Shyaamal16.1812.0828.26
298ZASymanovitz Judd19.158.527.65
299BELuyten Stijn17.5510.0427.59
300ISHaraldsson Jon19.567.3626.92
301SVSalomon Sandoval Luz Giselle18.328.5226.84
302QAKeshaish Abdulla21.125.526.62
303OMAl-Amry Jumanah20.416.1626.57
304CRMunoz Solis Jose Daniel18.48.1426.54
305ISBjarkarson Kari16.69.5526.15
306MXArreola Guillen Ivan11.6914.4126.1
307CRHernandez Abarca Juan Pablo15.7210.1725.89
308ESMairlot Niguez Alvaro14.3811.3325.71
309BELhoest Guy-Louis17.018.5625.57
310BDTalukder Md. Ahad Islam12.4513.1125.56
311ZANaicker Senthan18.297.1925.48
312TTLiu Raymond17.118.1825.29
313TJKamoliyon Mukhammadsolehi15.129.9425.06
314LUCiobanu Rares14.4310.2624.69
315NGChukwure Granville16.797.4224.21
316PTGomes Miguel13.3810.5523.93
317NPLamsal Pujan17.785.9323.71
318TJSamiev Ismoil16.776.9123.68
319TTAli Fazeel16.347.0423.38
320NPSapkota Bishnu15.846.7922.63
321MELazarevic Vanja13.039.5522.58
322MEOrbovic Jelena16.665.8322.49
323ECIdrovo Ernesto14.098.3422.43
324KGKozhegulov Suleiman8.8513.3722.22
325VERodrigues Sergio14.987.1622.14
326NGNwadinobi Chigozie12.019.7821.79
327VERodriguez Carlos16.265.4721.73
328SVMendez Palma Fernando Josue15.655.5321.18
329ECTrujillo Gabriela16.653.7420.39
330ECNavarrete Tutiven Javier14.975.2120.18
331NGOkereke Kenechukwu8.2111.8320.04
332TTRampersad Saiesh9.699.5619.25
333TJAsoev Aminjon8.0410.1118.15
334ECRivera Emma13.914.218.11
335KWAlNajem Mohammed13.634.4618.09
336TTMohammed Jaron9.97.717.6
337QAAl-Hajiri Hamad11.995.1117.1
338AEObaid Mohamed Alyammahi Bashayer Ahmed10.36.0916.39
339BDKar Arjo4.9710.3615.33
340PYBenitez Vera Jazmin12.812.3815.19
341MEBigovic Lana12.182.7814.96
342LIVogt Merlin9.293.8613.15
343KWAlShareekah Yaqob7.615.3312.94
344KWRajab Abdullah6.995.7212.71
345ZAWeng Xu7.045.5412.58
346OMAl-Hinai Ayaat9.672.6112.28
347PYRamos Constanza7.873.5111.38
348KWALDamkhi Taiba7.033.4510.48