Three players in the top half of the draw lost to their lower-rated opponents, on boards 32, 44 and 49. All the draws were of course also “upsets” of a lesser nature. Round 1 results were as follows. Games to play through on screen can be found at

https://s1.chess-results.com/partiesuche.aspx?lan=1&art=4&tnr=1452107&rd=1.

Bd.	Rtg	White		Result	Black		Rtg
1	2232		Bowcott-Terry, Finlay	0 - 1	GM	McShane, Luke J	2597
2	2595	GM	Adams, Michael	1 - 0		Verbytski, Oleg	2228
3	2225		Saunders, Aron	0 - 1	GM	Royal, Shreyas	2514
4	2508	IM	Grieve, Harry	1 - 0	FM	Blackburn, Jonathan Lb	2220
5	2208	WGM	Toma, Katarzyna	0 - 1	GM	Ghasi, Ameet K	2494
6	2488	IM	Bazakutsa, Svyatoslav	1 - 0	IM	Mannion, Steve R	2206
7	2205		Crawford, Owen	½ - ½	IM	Harvey, Marcus R	2470
8	2459	IM	Willow, Jonah B	½ - ½		Raju, Sooraj Menothuparambil	2187
9	2185	CM	Stubbs, Oliver	0 - 1	IM	Czopor, Maciej	2455
10	2455	IM	Waldhausen Gordon, Frederick	1 - 0	CM	Dupuis, Denis K	2183
11	2182	WFM	Dicen, Elis Denele	0 - 1	IM	Mahadevan, Siva	2447
12	2439	IM	Roberson, Peter T	1 - 0		Carroll, Thomas	2180
13	2180		Elgar, Tim	0 - 1	GM	Williams, Simon K	2438
14	2429	GM	Gordon, Stephen J	½ - ½	CM	Deepak Ambattu, Rithvik	2164
15	2160		Brahme, Avadhoot Lokesh	0 - 1	IM	Han, Yichen	2421
16	2410	IM	Pert, Richard G	1 - 0		Kolani, Arjun	2158
17	2153	IM	Baker, Chris W	½ - ½	GM	McDonald, Neil R	2399
18	2398	IM	Kanyamarala, Tarun	1 - 0		Majeed, Haroon	2153
19	2149	FM	Varnam, Liam D	0 - 1	FM	Chow, Sam	2381
20	2377	IM	Jackson, James P	1 - 0	FM	Wall, Tim P	2148
21	2143		Cont, Arya	½ - ½	IM	Golding, Alex	2370
22	2357	FM	Banerjee, Supratit	1 - 0		Hill, Alistair	2143
23	2132	CM	Fellowes, Billy	0 - 1	GM	Hebden, Mark L	2345
24	2338	FM	Sivanandan, Bodhana	½ - ½	CM	Zhao, George	2125
25	2114		Nicholas, Koichi B	0 - 1	WGM	Yao, Lan	2320
26	2320	FM	Badacsonyi, Stanley	½ - ½	CM	Lentzos, Ioannis	2110
27	2103	WFM	Hariharan, Shambavi	0 - 1	FM	Vijayakumar, Rishi	2315
28	2314	FM	Fava, Lorenzo	1 - 0		Rughani, Mahin	2096
29	2092		Potter, John M	0 - 1	GM	Wells, Peter K	2313
30	2312	IM	Ledger, Andrew J	1 - 0		Sharma, Devesh	2089
31	2085		Quaite, Toby	0 - 1	IM	Bates, Richard A	2296
32	2296	WGM	Kanyamarala, Trisha	0 - 1		Tahmankar, Mandar	2085
33	2077		Patel, Zain	0 - 1	FM	Shearsby, Jude	2293
34	2292	IM	Fitzsimons, David	½ - ½		Blackford, Ross	2075
35	2073	WCM	Bhatia, Kanishka	0 - 1	IM	Balaji, Aaravamudhan	2285
36	2276	GM	Davies, Nigel R	1 - 0	WFM	Rida, Ruqayyah	2070
37	2056		Davis, Colin J	0 - 1	CM	Norris, Zack	2275
38	2273	CM	Turner, Max N	1 - 0	CM	Rich, Aaron	2043
39	2038		Green, Michael	½ - ½	GM	Arakhamia-Grant, Ketevan E	2270
40	2270	CM	Murawski, Jan	½ - ½		Terler, Bohdan	2035
41	2012		Jermy, Jaden	0 - 1	FM	He, Tom Junde	2266
42	2262	FM	Bezuidenhout, Roland	1 - 0		Cheng, Louis	2008
43	2005		Thomas, James	½ - ½	WGM	Mirzoeva, Elmira	2261
44	2261	FM	Vaidyanathan, Adithya	0 - 1		Sefton, Adam	2003
45	1994		Friar, Joseph D	0 - 1	IM	Pigott, John C	2255
46	2252	IM	Rudd, Jack	1 - 0	CM	Gunatilake, Vinuda	1986
47	1977		Ortiz Sanchez, Luis	0 - 1	FM	Badacsonyi, Frankie	2252
48	2250		Cancedda-Dupuis, Livio	1 - 0	WCM	Camp, Imogen Al	1964
49	1953		Vaddhireddy, Sai	1 - 0	FM	Khoury, Theo	2249
50	2244	IM	Cummings, David H	1 - 0	WFM	Cooke, Suzy G	1933
51	1860	WCM	Nevska, Gerda	0 - 1	FM	Hobson, Kenneth	2244
52	2239	FM	Han, Qixiang	1 - 0		Chapman, Luke	1856
53	1681	WCM	Ruddy, Rachel	0 - 1	CM	Lishoy Gengis Paratazham, Dildarav	2235