Mark J Williams vs Xiao Guodong [ - ] [ + ]

2010/2011
PTC 1 (24‑27 Jun 2010)
Rd 3		Mark J Williams [7]	4	-	2	Xiao Guodong [87]
2014/2015
Championship League - Group 7 (9‑10 Feb 2015)
Grp		Mark J Williams	1	-	3	Xiao Guodong
2020/2021
WST Pro Series (18 Jan - 21 Mar 2021)
Grp		Mark J Williams [11]	2	-	1	Xiao Guodong [30]
Shoot Out (4‑7 Feb 2021)
Rd 3		Mark J Williams [8]	29	-	28	Xiao Guodong [21]
2023/2024
English Open (2‑8 Oct 2023)
Rd 2		Mark J Williams [10]	4	-	3	Xiao Guodong [37]
2024/2025
Champion of Champions (11‑17 Nov 2024)
Final		Mark J Williams [6]	10	-	6	Xiao Guodong
Final	Session 1: 73-25 (65), 79-58, 91-0 (91), 77-0, 65-11, 55-68 (XG 55 MJW 51), 2-101 (101), 1-76, 1-117 (117) Session 2: 112-4 (104), 71-34 (62), 0-76 (68), 125-12 (80) 37-75, 95-1 (95), 78-1 (67) Referee: Marcel Eckardt This was Williams' first Champion of Champions title.
2025/2026
Wuhan Open (24‑30 Aug 2025)
SF		Mark J Williams [5]	3	-	6	Xiao Guodong [1]
SF	69-64 (XG 52), 15-57, 81-0 (81), 43-90 (53), 116-6 (75), 40-63, 0-80 (80), 39-67, 58-62 (62, 58)