Chris officially has 100% TDD, but it's partially misleading. While he legitimately stuffed Allen, Viera, Gastelum, and Hermansson (many of which seemed to come with a striking gameplan), I feel like Hawes could have gotten him down. Phil kept feinting level changes, only to bail and use the setup to land shots upstairs as Chris went to address the threat of the takedown. Watching some of the feints, however, there was at least a time or two where in the words of DC he "beat Curtis to his hips" and had the takedown all but finished before going back to boxing. The statisticians just count them all as failed. Anyway, Chris very clearly has very solid TDD nonetheless, especially for someone who is fairly undersized.
Vettori impressed me with his ability to stay upright and outscramble Hermansson consistently in their five-round fight and has generally above-average TDD given his ability to fend off the likes of Sanchez, Ferreira, Akhmedov, and Dolidze. But he has also been outgrappled and put on his back more than a few times in other performances.
Hard to compare due to level of competition; I tend to think that if Chris fought all the same guys as Marvin, one of them would eventually get him down at least briefly. They're probably around a similarish level these days honestly.