Mid-Season Invitational 2021 | LoL MSI Betting Guide

Posted on May 4, 2021 - Last Updated on July 7, 2021

The Mid Season Invitational, most commonly referred to as the MSI, is a yearly event that takes place between the Spring and Summer League of Legends competitive seasons. The tournament gathers the top teams in their respective regions (winners of the various Spring playoffs), battling it out for two and a half weeks, and across three different stages!

MSI is an international tournament and is the second biggest League of Legends event during the year, surpassed by the League of Legends World Championships. This means that the MSI can be considered one of the largest esports tournaments in the world. Such a large attraction leads to very competitive odds and various MSI Betting markets when compared to regular LCS betting. LoL MSI Betting can be a highly lucrative and profitable venture.

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MSI 2021 Tournament Schedule and Format

MSI 2021 will be held in Reykjavík, Iceland, for the first time. This will be the first MSI in two years due to its previous cancellation in 2020 because of COVID-19. Unfortunately, due to travel restrictions in Vietnam, the region will be unable to send its participant (GAM Esports). This has forced the number of participants for the 2021 Mid Season Invitational down to eleven.

When is MSI 2021?

The Mid Season Invitational 2021 will be held from the 6th to 23rd of May, lasting just over two and a half weeks.

Why do teams participate?

On top of a cash prize (which has yet to be announced), the region winner of the MSI 2021 will receive an additional team slot for Worlds 2021.


MSI 2021 can be broken down into three different stages:

  1. Group Stage,
  2. Rumble Stage,
  3. Knockout Stage.

1. Group Stage

The Group Stage will consist of the 11 (originally 12) teams being split into three groups; Group A, Group B, and Group C. These groups were established by categorizing regions based on tiers, followed by a random draw. Such tiers were established to create a more balanced group stage.

Matches in the Group Stage are all Best of 1, with the top two teams in each group advancing to the Rumble Stage.

  • Tier 1 – LPL, LEC, LCK
  • Tier 2 – LCS, PCS, VCS
  • Tier 3 – TCL, LCL, LLA
  • Tier 4 – LJL, CBLOL, LCO


2. Rumble Stage

Matches in the Rumble Stage will continue to be a Best of 1, with teams playing in a double round robin. The top four teams will then advancing to the final Knockout Stage, and hence the semi-finals of the 2021 MSI. By then, the strength of all participating teams should be obvious, allowing for a safer LoL MSI Betting experience and more solid LoL MSI Predictions.

3. Knockout Stage

For the final stage of the competition, the semi-finals and finals matches will be a Best of 5. This format ensures increase competitivity by removing doubt the victor had simply been on a lucky streak.

MSI Odds and Betting Options

Due to the significance of the MSI, Bet365 is currently offering outright odds on the tournament.

This means not only can you bet on the usual individual matches, but on who will win the overall tournament:

MSI 2021 Outright winner odds

Royal Never Give UP (RNG)2.87
MAD Lions16.00
Cloud9 (C9)26.00
PSG Talon41.00
Istanbul Wild Cats (IW)91.00
Unicorns of Love (UOL)67.00
paiN Gaming101.00
DetonatioN FocusMe (DFM)151.00
Infinity Esports251.00

Odds taken from Bet365 on May 4th

Damwon Gaming are the team most likely to win the 2021 MSI. Damwon are the reigning 2020 World Champions and have carried their strength through 2021 with one of their best LCK seasons yet. The team went in the LCK Group stage 16-2, and ended the Playoffs undefeated against both Hanwha Life Esports and Gen.G Esports. Damwon are currently peaking and show no signs of slowing down anytime soon.

MSI Betting options

Aside from the outright winner market, Bet365 also offers various other betting opportunities on individual matches throughout the various stages of the MSI

These include:

  • Match winner
  • First blood
  • First tower
  • First dragon
  • First baron
  • First inhibitor
  • Race to different intervals of kills
Image Credits | ESTNN

LoL MSI Betting Sites

Being a major esports tournament, there are many bookmakers who will capitalise on the hype. This leads to very competitive odds and a great opportunity to make some steady gains.

However, aside from great odds, it is vital for punters to choose regulated bookmakers when looking for LoL MSI betting sites. Regulated bookmakers are not only legal but are much safer and more reliable compared to unknown sites.

Consequences for not betting with regulated and reputable bookmakers may include;

  • losing your deposit,
  • being unable to cash out wins,
  • unfair bet cancellations.

LoL MSI Betting is safe with reputable bookmakers like the ones featured below; who not only have extremely competitive odds, but have built a strong reputation through good customer service and quick payouts:

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MSI Past Winners

2015 – Edward Gaming

EDG narrowly claimed victory over SK Telecom T1 in the 2015 MSI Finals, ending 3-2. The team, later on, went to take first place in the Summer season, but stumbled in the Summer playoffs, finishing 4th. The team turned to have a decent performance in Worlds 2015 by making it out of groups and entering the quarterfinals.

2016 – SK Telecom T1

SK Telecom T1 has strong competition in the LCK, despite winning the MSI 2016, the team only placed 3rd in the LCK Summer Playoffs. However, SK Telecom T1 along with its LCK competitive dominated the group stage of Worlds 2016. SK Telecom T1 went on to take down ROX Tigers and Samsung Galaxy in the semi-finals and finals 3-2, ending 2016 as the World Champions.

2017 – SK Telecom T1

Despite winning the 2017 MSI decisively, SK Telecom T1 stumbled in the 2017 Summer season, only placing 4th. The team went on to finish the Summer Playoffs 2nd, and while not the strongest team in the LCK, were a strong contender for Worlds 2017. Ultimately, SK Telecom T1 fell short, losing 0-3 to Samsung Galaxy in the League of Legends World Championship finals, a crushing result for the unkillable demon king.

2018 – Royal Never Give Up

2018 was RNG’s most promising year, earning their first International win with MSI. The team carried this momentum in the LPL, winning the LPL 2018 Summer Playoffs. Unfortunately, RNG were toppled once again in Wolds 2018, this time by G2 3-2 in the quarterfinals.

2019 – G2 Esports

G2 Esports had their best year in 2019, winning all stages of the LEC, MSI 2019 and Rift Rivals 2019 NA-EU. On top of Europe’s strong performance in Worlds 2018, with two teams entering the semi-finals, G2 Esports were strongly positioned to take out worlds. While G2 Esports were able to take down big names like Damwon Gaming in the quarterfinals and SK Telecom T1 in the semi-finals, they were wiped in the finals. Following a 0-3 defeat to Fun Plux Phoenix, G2 Esports ended Worlds 2019 in 2nd place.

2020 – None (Event canceled)

Where to Watch Live

You can watch the 2021 Mid Seasonal Invitational live on the usual sites; Twitch, YouTube, and lolesports.com.

It is highly recommended viewers watch LoL MSI 2021 on Twitch as Riot often holds free in-game drops for random viewers who have linked their Twitch and Riot accounts.


After choosing a reputable bookmaker, LoL MSI betting can be very lucrative with the highly competitive odds offered. In combination with in-depth analysis and our LoL MSI predictions, returns are bound to arrive.

LoL betting is easy to pick up, with straightforward markets and a beginner-friendly interface with Bet365. Not ready to bet on MSI but interested in learning more? Learn about LCS Betting and get ready for the upcoming LCS Summer season.

The Mid Season Invitational gives a good sneak peek at the strength of each region, and gives a glimpse of the strongest teams before Worlds. Performance in the MSI will give a strong indication on a team’s coming performance and is especially helpful with LoL Worlds Betting.

However, as past MSI victors have shown, the title does not mean everything. While MSI winners generally get out of groups and many do well, only SK Telecom T1 took both the MSI and Worlds titles in 2016.

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