# TOI - Estimate

Discussion in 'By The Numbers' started by HockeyPuck, Sep 25, 2018.

1. ### HockeyPuckRegistered User

Joined:
Jan 6, 2016
Messages:
21
0
Trophy Points:
4
I was wondering if you guys know how to estimate the Time on Ice of a player ? I know that there's a study out there but I'm having difficulties to understand the way they proceed. Is there a formula already built ?

Thank you

2. ### Golden_JetRegistered User

Joined:
Sep 21, 2005
Messages:
2,996
310
Trophy Points:
124
Nhl.com
It lists TOI

3. ### Mike FarkasGrace Personified

Joined:
Jun 28, 2006
Messages:
9,641
2,647
Trophy Points:
156
Location:
PA
I don't know who made it...but @seventieslord gave me my copy years ago. I think it was based on like shots and plus/minus or some such...assuming you're talking about pre-1998.

4. ### Doctor NoRegistered User

Joined:
Oct 26, 2005
Messages:
7,931
1,348
Trophy Points:
139
My assumption is that the thread starter is looking for the estimate used in years for which TOI is not published.

Iain Fyffe created the method most commonly used today; there's a useful thread about it here:

Basically, the method was created by fitting a model to the known data, and then assuming that the same relationships would hold in prior periods (that second part is a bit controversial - since it's different to extrapolate than to interpolate - and gets talked about a bit in the thread).

5. ### seventieslordStudent Of The Game

Joined:
Mar 16, 2006
Messages:
32,419
1,416
Trophy Points:
169
Location:
Regina, SK
situational goals for and against, compared to the team totals.

6. ### HockeyPuckRegistered User

Joined:
Jan 6, 2016
Messages:
21
0
Trophy Points:
4
Thanks for your answers guys. I was looking for a formula that would help calculating/estimating TOI in the QMJHL. As I look on their Stats page, I can't find the TOI of players.

Joined:
Jun 28, 2006
Messages:
9,641