Błachowicz stod over for [[Jimi Manuwa]] i en omkamp den 17. marts 2018 på UFC Fight Night 127. <ref>{{Cite web|url=http://mmajunkie.com/2018/01/jimi-manuwajan-blachowicz-rematch-ufc-fight-night-127-london|title=Jimi Manuwa vs. Jan Blachowicz rematch booked for UFC Fight Night 127 in London|website=mmajunkie.com|last=Dann Stupp|date=2018-01-14|access-date=2018-01-04}}</ref> Han vandt kampen via enstemmig agørelse. <ref>{{Cite web|url=https://www.mmamania.com/2018/3/17/17134660/ufc-fight-night-127-results-jan-blachowicz-avenges-loss-to-jimi-manuwa-in-slugfest|title=UFC Fight Night 127 results: Jan Blachowicz avenges loss to Jimi Manuwa in slugfest|publisher=mmamania.com|last=Andrew Pearson|date=2018-03-17|access-date=2018-03-17}}</ref> Sejren tildelte ham også hans første ''Fight of the Night-'' bonuspris. <ref>{{Kilde nyheder|url=https://www.mmamania.com/2018/3/17/17133382/ufc-fight-night-127-official-bonus-winners-london-mma-werdum-volkov-blachowicz-manuwa-craig|title=UFC Fight Night 127 bonuses: Alexander Volkov's main event knockout leads $50K winners|last=Dan Hiergesell|date=2018-03-17|access-date=2018-03-18|publisher=mmamania.com}}</ref>
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