This Data is provided by Professor Roger W. Johnson (rwjohnso@silver.sdsmt.edu).

NFL Passer Rating Data

```Variables below (from left to right):
Quarterback's first name
Quarterback's last name
Pass attempts (ATT)
Pass completions (COMP)
Passing yardage (Yards)
Touchdowns (TD)
Interceptions (INT)
NFL Rating (rounded to the nearest .1)
```
The data, obtained from the NFL, are current to the beginning of the 1997-1998 season for those players with at least 1,500 passing attempts. For more details see the article "How does the NFL rate passers?" which appeared in _The UMAP Journal_, volume 18, number 2, pp. 145-166. For updates of the data below, consult any one of a number of almanacs (not necessarily sports almanacs). As a hint to students on how to fit rating to the other variables an instructor may wish to mention: "Ratings [are] based on performance standards established for completion percentage, average gain, touchdown percentage, and interception percentage." (Hassan, J., editor, (1997), _ESPN 1998 Information Please Sports Almanac_, Information Please LLC, New York, p. 262.) Interested individuals may also wish to see the NFL's 1977 publication "National Football League Passer Rating System". In this document 25 of the 36 pages are devoted to look-up tables to compute rating rather than simply giving the formula below (NFL, 410 Park Avenue, New York, NY 1022-4444, (212) 758-1500).

NFL Rating = [5(%Completions - 30)/6] + [10(%TDs)/3] + [25(19 - 2(%Int))/12] + [25(Yards/Attempt - 3)/6]

where it is understood that each item in [ ] is to be truncated to be no smaller than 0 and no larger than 475/12 (giving a maximal rating of 475/3 or 158.3). This rating is rounded to the nearest tenth. When none of the truncation limits are reached, which is true in most cases, the above amounts to

Rating = [25 + 10(%Completions) + 40*(%TD) - 50(%INT) + 50(YD/ATT)]/12

```Player		ATT	COMP 	Yards	TD	INT	NFL Rating

Steve Young	3192	2059	25479	174	85	96.2
Joe Montana	5391	3409	40551	273	139	92.3
Brett Favre	2693	1667	18724	147	79	88.6
Dan Marino	6904	4134	51636	369	209	88.3
Otto Graham	2626	1464	23584	174	135	86.6
Jim Kelly	4779	2874	35467	237	175	84.4
Roger Staubach	2958	1685	22700	153	109	83.4
Troy Aikman	3178	2000	22733	110	98	83.0
Neil Lomax	3153	1817	22771	136	90	82.7
Sonny Jurgensen	4262	2433	32224	255	189	82.6
Len Dawson	3741	2136	28711	239	183	82.6
Jeff Hostetler	2194	1278	15531	89	61	82.1
Ken Anderson	4475	2654	32838	197	160	81.9
Bernie Kosar	3365	1994	23301	124	87	81.8
Danny White	2950	1761	21959	155	132	81.7
Dave Krieg	5288	3092	37946	261	199	81.5
Warren Moon	6000	3514	43787	254	208	81.0
Neil O'Donnell	2059	1179	14014	72	46	80.5
Scott Mitchell	1507	853	10518	71	49	80.5
Bart Starr	3149	1808	24718	152	138	80.5
Ken O'Brien	3602	2110	25094	128	98	80.4
Fran Tarkenton	6467	3686	47003	342	266	80.4
```