From Liquipedia League of Legends Wiki
No upcoming games
- May 9th - MAMMOTH acquires the OPL slot of Sin Gaming. 
- May 15th - REMIND is announced as the mid laner for OPL Split 2.
- May 16th - Mash is announced as the ADC for OPL Split 2.
- June 4th - Chippys joins.
- October 16th - According to the of Legends Esports League-Recognized Contract Database, REMIND leaves the team.
|Vicarius||Calvin Lee||Head Coach||2018-04-30|
|SebbieSawrr||Katherine Qin||Team Manager||2018-04-30|
|2018-08-17||10:00 UTC||Major||OPL Split 2 2018 - Week 10||0 : 2||LGC|
|2018-08-11||10:00 UTC||Major||OPL Split 2 2018 - Week 9||1 : 2||BMR|
|2018-08-04||07:00 UTC||Major||OPL Split 2 2018 - Week 8||0 : 2||CHF|
|2018-07-27||07:00 UTC||Major||OPL Split 2 2018 - Week 7||0 : 2||DW|
|2018-07-20||10:00 UTC||Major||OPL Split 2 2018 - Week 6||2 : 1||AV|
|Complete list of matches in any tournament|
- MAMMOTH (2018-05-09). "We're excited to announce the acquisition & rebrand of Sin Gaming and the official launch of MAMMOTH." (in ). Twitter.
- MAMMOTH (2018-05-15). "Please welcome REMIND to MAMMOTH as our new mid-laner." (in ). Twitter.
- MAMMOTH (2018-05-16). "We're incredibly excited to announce and officially welcome the newest member of our OPL team, LCS veteran Mash." (in ). Twitter.
- MAMMOTH (2018-06-04). "We're excited to welcome @ChippysOCE as our new starting top-laner" (in ). Twitter.