Season	Club	M	W	D	L	Win%
2026/2027	Jagiellonia Białystok	2	1	1	—	50%
2025/2026	Jagiellonia Białystok	14	7	5	2	50%
2024/2025	Jagiellonia Białystok	2	—	—	2	—
2024/2025	Jagiellonia Białystok	4	2	—	2	50%
2024/2025	Jagiellonia Białystok	12	6	3	3	50%

Adrian Siemieniec has taken charge of 34 matches on our records, across 5 seasons at 1 club, winning 16 (47%), drawing 9 and losing 9.

All of it at Jagiellonia Białystok, over 5 seasons (2024/2025–2026/2027). The best of them was 2026/2027, 50% won from 2 matches.

The current post is Jagiellonia Białystok, since Apr 2023: 34 matches there so far, 16 won (47%).

The season table below lists 5 seasons (2024/2025–2026/2027), each with its matches, results and win rate.

Record by club

Club	Seasons	M	W	D	L	Win%
Jagiellonia Białystok	2024/2025–2026/2027	34	16	9	9	47%

Adrian Siemieniec is a 34-year-old manager from Poland, currently in charge of Jagiellonia Białystok since Apr 2023.

We hold match records for one club: Jagiellonia Białystok.

Club

Career