Belgium at the 2025 World Athletics Championships

Track and road events

Athlete	Event	Heat		Semifinal		Final
		Result	Rank	Result	Rank	Result	Rank
Alexander Doom	400 metres	45.10	6	Did not advance
Daniel Segers		45.04	4
Eliott Crestan	800 metres	1:45.05	5 q	1:44.56	8	Did not advance
Pieter Sisk		1:46.37	7	Did not advance
Pieter Sisk	1500 metres	3:43.50	11
Ruben Verheyden		3:41.45	5 Q	3:36.31	10	Did not advance
Jochem Vermeulen		3:37.33	8	Did not advance
John Heymans	5000 metres	13:47.37	13	—		Did not advance
Isaac Kimeli		13:13.06	1 Q			12:58.78 SB
Koen Naert	Marathon	—	2:12:52	17
Elie Bacari	110 metres hurdles	13.55	6	Did not advance
Michael Obasuyi		13.54	5
Tim Van de Velde	3000 metres steeplechase	9:02.21	11	—	Did not advance
Emiel Botterman Antoine Snyders Simon Verherstraeten Kobe Vleminckx	4 × 100 metres relay	38.46	5 NR	—	Did not advance
Dylan Borlée* Alexander Doom Jonathan Sacoor Daniel Segers Robin Vanderbemden	4 × 400 metres relay	2:57.98 SB	2 Q	—	2:59.48	4

Field events

Athlete	Event	Qualification		Final
		Distance	Position	Distance	Position
Thomas Carmoy	High jump	2.25	12 q	2.20	=11
Ben Broeders	Pole vault	5.70	16	Did not advance

Combined events – Decathlon

Athlete	Event	100 m	LJ	SP	HJ	400 m	110H	DT	PV	JT	1500 m	Final	Rank
Jente Hauttekeete	Result	10.85	7.04	14.58	1.99	49.36	14.49	44.09	5.00	55.44	4:27.91 PB	8116	10
	Points	894	823	764	794	844	912	748	910	669	758

Track and road events

Athlete	Event	Heat		Semifinal		Final
		Result	Rank	Result	Rank	Result	Rank
Rani Rosius	100 metres	11.25 SB	4	Did not advance
Imke Vervaet	200 metres	22.74	3 Q	22.79	6	Did not advance
Elise Vanderelst	5000 metres	15:00.52	11	—
Jana Van Lent		15:14.93	17
	10000 metres	—				31:44.05	13
Yanla Ndjip-Nyemeck	100 metres hurdles	12.74	4 q	13.05	6	Did not advance
Paulien Couckuyt	400 metres hurdles	55.08	5 q	54.69	6
Naomi Van den Broeck		54.70	3 Q	53.65 NR	3 q	53.70	6
Janie De Naeyer Delphine Nkansa Rani Rosius Rani Vincke	4 × 100 metres relay	DQ		—	Did not advance
Camille Laus Helena Ponette Naomi Van Den Broeck Imke Vervaet	4 × 400 metres relay	3:23.96	2 Q	—	3:22.15 SB	4

Field events

Athlete	Event	Qualification		Final
		Distance	Position	Distance	Position
Merel Maes	High jump	1.88	=12 q	1.93	10
Elien Vekemans	Pole vault	4.45	17	Did not advance
Ilona Masson	Triple jump	13.79	19

Combined events – Heptathlon

Athlete	Event	100H	HJ	SP	200 m	LJ	JT	800 m	Final	Rank
Nafissatou Thiam	Result	13.61	1.89	14.85	25.52	5.99	DNS	-	DNF
	Points	1034	1093	851	840	846	0	-

Track events

Athlete	Event	Heat		Final
		Result	Rank	Result	Rank
Dylan Borlée Alexander Doom Jonathan Sacoor* Helena Ponette Imke Vervaet	4 × 400 metres relay	3:10.37 SB	1 Q	3:10.61

* – Indicates the athlete competed in preliminaries but not the final