Well....2020 has been the craziest year since most of us have been alive in many respects, I guess most of us can agree on that. One of the (perhaps few) 'positive' consequences was that people had more time to play SMK and get new PRs/WRs in...which should make answering this topic harder than in most other years. And in my opinion it certainly does, so many great WRs to highlight!

Together we scored 109 WRs last year, breaching the 100 mark for the first time since 2007 (!!) and more than quadrupling the number achieved in 2019...

It also had the highest number of different players achieving WRs since 2010, with as many as 9 karters getting them. And to top it off we finally achieved the landmark of having a representative video for all 80/80 current WRs for the first time in the community's history.
For full disclosure the winners in previous years:
2015: KB1 45"76 by Sportsguy001
2016: DP2 1'24"97 (incl. 16"77 WR flap) by KVD
2017: MC2 12"02 PAL by ScouB & VL2 45"99 NTSC by KVD
2018: KB2 10"25 PAL & MC3 1'22"75 NTSC by ScouB
2019: MC1 11"22 PAL & GV1 11"63 NTSC by KVD
Again these weren't polled, I've just taken the liberty to assume a consensus from replies in the topics. Which is not a scientifically accurate thing to do for a scientist, but hey it's not like anyone is getting any gold medals here.

On to the reason this topic is made....the candidates for 2020's WR of the year!
And let's take a moment here to thank Guilherme Arantes, whose glorious return gave us all quite a few new strats to play around and improve with.
PAL
BC1 1'27"81 KVD
CI1 53"13 Lafungo
CI1 10"31 ScouB
MC3 1'25"45 Sami
MC3 16"71 Sami
KB1 47"64 Aron
CI2 1'03"97 ScouB
CI2 12"52 ScouB
VL1 48"87 Aron
VL1 9"45 KVD
MC4 1'32"05 KVD
MC4 18"09 KVD
DP3 1'14"98 KVD
VL2 47"89 Sami
NTSC
GV1 59"19 KVD
BC1 1'25"00 KVD
BC1 16"85 KVD
CI1 50"64 Lafungo
CI1 9"77 Firewaster
DP2 1'22"10 ScouB
DP2 16"13 KVD
CI2 1'01"56 ScouB
CI2 12"07 ScouB
VL1 47"21 Neo
VL1 9"18 Neo
BC3 1'26"63 KVD
MC4 1'28"89 ScouB
MC4 17"39 ScouB
KB2 9"91 Firewaster
RR 1'23"46 KVD
There's so many I may have overlooked one or two. Please let me know if I did. As in previous years ties are not considered for a new WR of the year. If you have an opinion here, please state why you thought that particular WR was worthy of special praise. It's always fun to read that back years later.

Source (also if you wanna check some of the videos):
http://mkwrs.com/smk/