On Pro-Football-Reference, while the majority of our statistics are for players, we also have a good amount of coaching data, including team ranks during a coach's tenure as well as coaching history. One of our offseason projects at PFR was to fill out the coaching history of every head coach and coordinator since 1990, and we have pushed that data out for the public eye today.

Some examples:

Tom Cable is currently an assistant head coach and offensive line coach for the Seattle Seahawks, and he's been on the West Coast for the grand majority of his career, ever since he started off as a graduate assistant for Idaho and San Diego State in the late 1980s.

David Shula had an ignominious head coaching tenure for the Bengals of the 1990s, but now we've added in his 1991 year as a WR coach that got him promoted to head coach the ensuing season.

Lane Kiffin has been out of the NFL for a while, but we've added in his latter-day college experience as an offensive coordinator for Alabama and a head coach for Florida Atlantic. Never forget he got his head coaching gig with the Raiders from a college offensive coordinator position, so anything is possible.

To get at least one actually successful coach in here, Dick Vermeil now has his 1970s stints with UCLA as well as his 1969 season as the Los Angeles Rams' special teams coordinator included in his history.

If you have any questions or suggestions, feel free to contact us through our feedback form.

We've made lots of additions to the player data on College Basketball Reference in recent years. In an effort to make it a little more clear what data we have and what data we don't have, we've made this coverage map back to 1947-48.

Our rosters are essentially complete back to 1992-93, and our coverage of box score stats is also nearly complete back to that year (aside from minutes played, turnovers, personal fouls and offensive/defensive rebounds).

For seasons before 1992-93, it's important to note that our rosters are not 100% complete. It was NCAA practice for many years to combine the stats for non-rotation players on team stat sheets under the label "Others." So for many teams we have stats for the eight, nine, ten, etc. players who received significant playing time, but not for the players with negligible playing time. Additionally, we're missing 621 school seasons completely (mostly in the 40s and 50s). So when we say we have points for 98.8% of players in 1947-48, that means we have points for 98.8% of the players in our database for that season (which excludes players lumped in as "Others" or players on teams we are completely missing).

The link to this coverage map can be found both in the Player Season Finder tool and in our About section.

If you happen to have any of the data we're missing, please let us know. Over time, we hope to fill in as many gaps as possible.

On Baseball-Reference and Basketball-Reference, we've offered an option to see game logs on a team basis. If you wanted to take a look at the averages of the Miami Heat's 27-game winning streak in 2013, or how the Cardinals did in 2016 when they hit multiple home runs in 9 consecutive games, summable game logs allow you to check the averages during your specified span (done by clicking on two rows to highlight the group of games you're interested in).

Now, we've gone ahead and made that an option for Hockey-Reference and Pro-Football-Reference as well. Want to add up the goal differential during the Columbus Blue Jackets' 16-game winning streak in December 2016? Or maybe take a look at how many yards the Browns gave up in just the second half of 2017? That can now be done with the addition of summable game logs to team pages. Similarly to team game logs on Baseball-Reference and Basketball-Reference, just click on two rows and the site will sum and average the rows highlighted in that range.

If you have any questions or suggestions, feel free to contact us through our feedback form.