# List of M Countdown Chart winners (2020)

The M Countdown Chart is a record chart on the South Korean Mnet television music program M Countdown. Every week, the show awards the best-performing single on the chart in the country during its live broadcast.
In 2020, 33 singles ranked number one on the chart and 25 music acts received first-place trophies. Two songs collected trophies for three weeks and achieved a triple crown: "Wannabe" and "Not Shy", both by Itzy. Of all releases for the year, only two songs earned a perfect score of 11,000 points: "On" by BTS and "I'm in Trouble" by NU'EST.

## Scoring system
### April 26, 2018 – May 21, 2020

Scoring System: Digital Music Sales (45%), Album Sales (15%), Social Media Score (YouTube official music video views + SNS buzz) (20%), Global Fan Votes (10%), Mnet Broadcast Score (10%), SMS Live Vote 10%.

### May 28, 2020 – present

Scoring System: Digital Sales (Melon, Genie, FLO) (45%), Album Sales (15%), Social Media (YouTube MV views) (15%), Global Fan Vote (15%), Mnet Broadcast (Mnet TV, MCD Stage, M2 Contents) (10%), Live Vote (for 1st nominees only) (10%).

## Chart history

Key :
| | Triple Crown |
| | Highest score of the year |
| — | No show was held |
| Episode | Date | Artist | Song | Points |
| 647 | January 2 | New Year's Special – No Winner | New Year's Special – No Winner | New Year's Special – No Winner |
| 648 | January 9 | Momoland | "Thumbs Up" | 10,125 |
| 649 | January 16 | SF9 | "Good Guy" | 9,798 |
| — | January 23 | No Broadcast or Winner | No Broadcast or Winner | No Broadcast or Winner |
| 650 | January 30 | SF9 | "Good Guy" | 10,031 |
| 651 | February 6 | Sechs Kies | "All for You" | 9,213 |
| 652 | February 13 | GFriend | "Crossroads" | 9,461 |
| 653 | February 20 | GFriend | "Crossroads" | 7,492 |
| 654 | February 27 | Iz*One | "Fiesta" | 10,914 |
| 655 | March 5 | BTS | "On" | 11,000 |
| 656 | March 12 | Loona | "So What" | 8,075 |
| 657 | March 19 | Itzy | "Wannabe" | N/A |
| 658 | March 26 | Itzy | "Wannabe" | 7,902 |
| 659 | April 2 | Itzy | "Wannabe" | N/A |
| 660 | April 9 | Kang Daniel | "2U" | 7,664 |
| 661 | April 16 | (G)I-dle | "Oh My God" | N/A |
| 662 | April 23 | Apink | "Dumhdurum" | 8,628 |
| 663 | April 30 | Got7 | "Not By The Moon" | 7,830 |
| 664 | May 7 | Oh My Girl | "Nonstop" | N/A |
| 665 | May 14 | Oh My Girl | "Nonstop" | 6,580 |
| 666 | May 21 | NU'EST | "I'm in Trouble" | 11,000 |
| 667 | May 28 | NCT 127 | "Punch" | 9,778 |
| 668 | June 4 | NCT 127 | "Punch" | 7,414 |
| 669 | June 11 | Twice | "More & More" | 9,356 |
| 670 | June 18 | Cosmic Girls | "Butterfly" | 9,235 |
| 671 | June 25 | Iz*One | "Secret Story of the Swan" | N/A |
| 672 | July 2 | Seventeen | "Left & Right" | 10,705 |
| 673 | July 9 | Blackpink | "How You Like That" | 8,167 |
| 674 | July 16 | Blackpink | "How You Like That" | 7,432 |
| 675 | July 23 | GFriend | "Apple" | 8,536 |
| 676 | July 30 | SSAK3 | "Beach Again" | 6,420 |
| 677 | August 6 | Somi | "What You Waiting For" | 6,776 |
| 678 | August 13 | (G)I-dle | "Dumdi Dumdi" | 8,842 |
| 679 | August 20 | (G)I-dle | "Dumdi Dumdi" | 8,521 |
| — | August 27 | No Broadcast or Winner | No Broadcast or Winner | No Broadcast or Winner |
| 680 | September 3 | Itzy | "Not Shy" | 6,838 |
| 681 | September 10 | Itzy | "Not Shy" | 6,866 |
| 682 | September 17 | Itzy | "Not Shy" | 7,443 |
| 683 | September 24 | Stray Kids | "Back Door" | 7,086 |
| 684 | October 1 | The Boyz | "The Stealer" | N/A |
| 685 | October 8 | The Boyz | "The Stealer" | 5,432 |
| 686 | October 15 | Blackpink | "Lovesick Girls" | 8,691 |
| 687 | October 22 | NCT U | "Make A Wish (Birthday Song)" | 7,552 |
| 688 | October 29 | Seventeen | "Home;Run" | 7,724 |
| 689 | November 5 | Twice | "I Can't Stop Me" | 9,065 |
| 690 | November 12 | Twice | "I Can't Stop Me" | — |
| 691 | November 19 | Mamamoo | "Aya" | — |
| — | November 26 | No Broadcast or Winner | No Broadcast or Winner | No Broadcast or Winner |
| — | December 3 | No Broadcast or Winner | No Broadcast or Winner | No Broadcast or Winner |
| — | December 10 | No Broadcast or Winner | No Broadcast or Winner | No Broadcast or Winner |
| 692 | December 17 | Iz*One | "Panorama" | 9,364 |
| 693 | December 24 | Iz*One | "Panorama" | — |
| — | December 31 | No Broadcast or Winner | No Broadcast or Winner | No Broadcast or Winner |
| "—" denotes an episode did not air that week. ||||||