What rank is 4200 MMR?

Archon: 2520 - 3359 MMR. Legend: 3360 - 4199 MMR. Ancient: 4200 - 5039 MMR. Divine: 5040 - 5740+ MMR.

What rank is 5K MMR Dota 2?

However, you could argue that even with the variation, the range that represents 5K MMR is quite small, probably around 3 medals, meaning that almost every time, a 5K MMR player will be between Divine 2 and Divine 4 Ranks.