Source: https://www.collegesoccer.us/article/view/what-does-it-take-to-be-a-midfielder-part-b
Timestamp: 2019-04-26 08:44:37+00:00

Document:
In the 10 matches analyzed, we observed a total of 609 plays involving one central midfielder (an average of 60 players per match). The highest number of plays per match was 73, the lowest 41.
Out of these 609 plays, 254 (41.7%) took place in the central midfielder's own half and 355 (58.3%) in the opposition's. 418 plays involving the ball (68.6%) were in the center zone of the field, while only 186 (31.4%) were observed in the zones along the sidelines.
How often is the central midfielder involved in 1 v. 1 play?
In the 10 matches analyzed, the central midfielder engaged in 211 1 v. 1s, for an average of 21 per match.
Of these 211 1 v. 1 situations, the midfielder won 114 (54.9%).
The 1 v. 1s break down almost evenly into attack and defense: 104 defensive 1 v. 1s versus 107 attacking 1 v. 1s.
Approximately every fourth 1 v. 1 (49) involved in a header.
The central midfielder had to deal with 22 unfair challenges from opponents in the course of 10 matches (i.e. more than two fouls per match); meanwhile, he himself caused only 15 fouls.
The spatial distribution of all 211 1 v. 1s: 94 (44.5%) took place in the midfielder's own half, and 141 (66.8%) in the center zone of the field.
What is the ratio of attacking plays to defensive plays?
Out of 609 plays involving the central midfielder and the ball, 494 (81.1%) were considered attacking plays, and only 115 defensive.

References: v. 
 v. 
 v. 
 v. 
 v. 
 v. 
 v. 
 v.