Every Bayer Leverkusen game grouped by individual referee. Over this sample Bayer Leverkusen are 82-34-25 (58.2%); each ref win rate below is compared to that team average.
Daniel Siebert has the most Bayer Leverkusen games in this sample (13).
Updated Aug 28, 2026, 12:08 a.m.·2021-2026 (2022-02-06 – 2026-04-18)
Bayer Leverkusen record: 82-34-25 (58.2%)
Qualified refs in this table account for 59 of 141 team matches (42%) in this sample. Table lists refs with 8+ games.
#RefWin ratevs baselineClose gamesOpponent whistle volume minus team volume per game. Positive means your team is whistled less (or the opponent more), a favorable minors/flags edge.
How Bayer Leverkusen compares in one-goal matches vs the full sample. Based on verified match results.
Close games (≤1 goal margin)
80 of 141 games match this window
Avg combined goals
Close-match avg
2.9
Season avg
3.3
Pressure impact
-0.4
Avg cards
Close-match avg
20.7
Season avg
20.2
Pressure impact
+0.5
Over rate
Close-match avg
35.0%
Season avg
43.3%
Pressure impact
-8.3 pp
Over benchmark: 3.3 combined goals · Seasons: 2021-22, 2022-23, 2023-24, 2024-25, 2025-26 · 141 total games in sample
What am I looking at?
Individual refs: stats for one official across all Bayer Leverkusen games they worked, even with different partners.
Team baseline: Bayer Leverkusen went 82-34-25 (58.2%) across this sample. Ref win rates show how they compare to that team average.
Whistle differential: who gets called more. A positive number means opponents are whistled more often than Bayer Leverkusen.
Scores, fouls, cards, and referee assignments from ESPN (1281 games, 154 with sportsbook totals). Referee coverage only where ESPN lists gameInfo.officials (2021-22 onward); games without referee names are excluded entirely. football-data.co.uk I1 CSVs lack a Referee column and are not used. Matrix: 402/572 ref×team pairs with 3+ games. 249 games skipped (no official listed).