| UFC Fight Night: Machado Garry vs. Prates | Randy Brown | 1134 →1153(+19) | Nicolas Dalby | 1076 →1057(-19) | Welterweight | Loss | KO |
| UFC Fight Night: Whittaker vs. Aliskerov | Rinat Fakhretdinov | 1067 →1089(+22) | Nicolas Dalby | 1098 →1076(-22) | Welterweight | Loss | S-DEC |
| UFC Fight Night: Almeida vs. Lewis | Nicolas Dalby | 1076 →1098(+22) | Gabriel Bonfim | 1049 →1028(-21) | Welterweight | Win | KO |
| UFC Fight Night: Vettori vs. Cannonier | Nicolas Dalby | 1054 →1076(+22) | Muslim Salikhov | 1094 →1071(-23) | Welterweight | Win | U-DEC |
| UFC 283: Teixeira vs. Hill | Nicolas Dalby | 1033 →1054(+21) | Warlley Alves | 1050 →1029(-21) | Welterweight | Win | S-DEC |
| UFC Fight Night: Blaydes vs. Aspinall | Nicolas Dalby | 1011 →1033(+22) | Claudio Silva | 1056 →1034(-22) | Welterweight | Win | U-DEC |
| UFC Fight Night: Gane vs. Volkov | Tim Means | 1069 →1087(+18) | Nicolas Dalby | 1028 →1011(-17) | Welterweight | Loss | U-DEC |
| UFC 255: Figueiredo vs. Perez | Nicolas Dalby | 1005 →1028(+23) | Daniel Rodriguez | 1067 →1043(-24) | Welterweight | Win | U-DEC |
| UFC Fight Night: Whittaker vs. Till | Nicolas Dalby | 1005 →1005 | Jesse Ronson | 942 →942 | Welterweight | nc
nc | Overturned
Rear Naked Choke |
| UFC Fight Night: Hermansson vs. Cannonier | Nicolas Dalby | 979 →1005(+26) | Alex Oliveira | 1080 →1054(-26) | Welterweight | Win | U-DEC |
| UFC Fight Night: Arlovski vs. Barnett | Peter Sobotta | 972 →993(+21) | Nicolas Dalby | 1001 →979(-22) | Welterweight | Loss | U-DEC |
| UFC Fight Night: Rothwell vs Dos Santos | Zak Cummings | 1042 →1061(+19) | Nicolas Dalby | 1020 →1001(-19) | Welterweight | Loss | U-DEC |
| UFC Fight Night: Holohan vs Smolka | Nicolas Dalby | 1020 →1020 | Darren Till | 1021 →1021 | Welterweight | draw
draw | M-DEC |
| UFC Fight Night: Condit vs Alves | Nicolas Dalby | 1000 →1020(+20) | Elizeu Zaleski dos Santos | 1000 →980(-20) | Welterweight | Win | S-DEC |
