From top left to bottom right (1 is top left, 18 is bottom right)
1) SHiFT - "How Speedrunning Revived SpongeBob: Battle for Bikini Bottom [Any% World Record History] Part 1"
(https://youtu.be/djkC8vLJ6Vw)
2) Bismuth - "How is this speedrun possible? The Legend of Zelda World Record Speedrun Explained"
(https://youtu.be/ACuk2TXoNhc)
3) WaifuRuns - "How Lucky is the Resident evil 4 World Record Speedrun"
(https://youtu.be/aKh2kk724VY)
4) Lowest Percent - "How Speedrunners beat Mario Odyssey without Cappy (almost)"
(https://youtu.be/L5aQzCJW5-s)
5) Karl Jobst - "The Worst Fake Speedrun on Youtube"
(https://youtu.be/AFrQ1_2bbsI)
6) EZScape - "Meme Speedruns 2"
(https://youtu.be/BquC2eIFVFM)
7) Msushi - "Portal 2's Unluckiest Speedrun"
(https://youtu.be/RfO_NhHSLsw)
8) tomatoanus - "Speedrun of Mirror's Edge (SPEEDRUN EXPLAINED - Any%)"
(https://youtu.be/ehtAl1RMrfI)
9) AverageTrey - "Why Do Speedrunners Hate Their Runs?"
(https://youtu.be/BlxlduEBGNA)
10) Lunatic J - "The History of Super Mario 64's BLJ"
(https://youtu.be/gKf_bFNXuu8)
11) Summoning Salt - "The History of Super Mario Bros. 2 World Records"
(https://youtu.be/V1RO2DUAQ2U)
12) Speed Docs - "Ratchet and Clank 2 - Speedrun World Record History"
(https://youtu.be/-Cv5_h2ysIM)
13) Hummeldon - "The Art of Ratchet & Clank: Up Your Arsenal Speedruns"
(https://youtu.be/S1CDiebvzRM)
14) ThaRixer - "The Man Who Broke Spyro in Half"
(https://youtu.be/Kazy_M2vA0E)
15) Geosquare - "The Shortest-Lived World Record in Speedrunning"
(https://youtu.be/ZVDD8T6MDVc)
16) Bescape - "The History of Mr. Krabs Overdoses on Ketamine Speedrunning"
(https://youtu.be/B2J2M90P3xU)
17) Wirtual - "The World Record History of A12 Speed - Trackmania Nations Forever"
(https://youtu.be/Bxr8_VO8Dxk)
18) Simply - "The trick that almost ruined SM64 Speedruns"
(https://youtu.be/wF-OOrGUriE)