Borussia Dortmund moved to within three points of Bayern Munich at the top of the Bundesliga after a 4-0 win over Mainz 05 at Signal Iduna Park, with Serhou Guirassy scoring twice and Maximilian Beier also on target before an own goal from Dominik Kohr completed a one-sided scoreline.
The victory came two days before Bayern meet Werder Bremen on Saturday, putting extra focus on Dortmund’s result as Julian Ryerson produced a standout display from wing-back, setting up the first three goals before his late corner led to Kohr’s decisive touch for the fourth.

Ryerson’s crossing set the tone for Dortmund’s control, and detailed data underlined that influence as Dortmund generated 1.74 expected goals from 14 attempts compared with Mainz’s 1.43 xG from nine shots, showing Dortmund took more efforts and created slightly better chances while still needing clinical finishing at key moments.
The opening goal arrived after only 10 minutes, when Guirassy rose above the Mainz defence and met Ryerson’s whipped free-kick, steering a precise header beyond goalkeeper Daniel Batz, and Dortmund doubled their advantage five minutes later as Ryerson delivered a looping cross from the right to the far post, where Beier nodded in from close range.
Mainz threatened a response despite trailing 2-0, with Silas Mvumpa receiving a clear chance after being released through the middle, but Mvumpa curled the shot wide of the post, and that miss proved costly as Guirassy soon struck again, heading in from Ryerson’s corner shortly before half-time to give Dortmund a three-goal cushion.
After the interval, Mainz 05 continued to look for a lifeline and thought one had arrived when captain Silvan Widmer finished a promising move, yet the assistant’s flag halted celebrations for offside, while Guirassy chased a hat-trick but sent another header, again from a Ryerson cross, narrowly wide of the left upright.
Dortmund’s fourth goal came in the 84th minute and again started from a Ryerson corner, which Ramy Bensebaini flicked on towards the back post, and under pressure inside the six-yard box, Kohr diverted the ball into Kohr’s own net, ending any lingering doubt about the result and underlining Dortmund’s superiority in both penalty areas.
The Opta data highlighted Ryerson’s performance, confirming Ryerson as the first Dortmund player since detailed collection began in 2004-05 to record three assists in a single first half of a Bundesliga match, with Ryerson also creating four chances in total and delivering 16 crosses, more than the entire Mainz side managed.
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Those numbers show how Dortmund relied heavily on wide service against Mainz 05, with Ryerson’s 16 crosses outstripping Mainz’s team total of 10 and helping Dortmund maintain pressure throughout, while Mainz still produced enough threat to reach 1.43 expected goals but lacked the finishing touch that Dortmund found at crucial stages.
The result keeps Borussia Dortmund firmly in the title picture heading towards Bayern Munich’s meeting with Werder Bremen, with Guirassy’s brace, Beier’s header and Kohr’s own goal all built on Julian Ryerson’s delivery, as Dortmund combined efficient finishing with strong crossing to gain an important Bundesliga victory over Mainz 05.