The luckiest and unluckiest teams of 2021

#	Team	Record	Replay wins	Luck in wins	One-score	Coin-flip wins	Through the season
1	Steelers	9–7–1	5.8	+3.7	8–2–1	6.1
2	Titans	12–5	9.5	+2.5	6–2	10.6
3	Dolphins	9–8	6.6	+2.4	4–3	8.6
4	Packers	13–4	11.0	+2.0	6–3	13.4
5	Vikings	8–9	6.4	+1.6	6–8	9.0
6	Saints	9–8	8.1	+0.9	2–3	9.7
7	Raiders	10–7	9.2	+0.8	7–2	7.2
8	Cowboys	12–5	11.4	+0.6	5–3	12.5
9	Texans	4–13	3.4	+0.6	0–4	5.6
10	Bengals	10–7	9.4	+0.6	4–5	9.1
11	Cardinals	11–6	10.5	+0.5	3–4	9.9
12	Eagles	9–8	8.6	+0.4	2–4	9.8
13	Patriots	10–7	9.7	+0.3	3–3	9.5
14	Falcons	7–10	6.7	+0.3	7–2	5.2
15	Rams	12–5	11.8	+0.2	4–2	10.9
16	Giants	4–13	3.9	+0.1	3–3	3.1
17	Washington	7–10	7.2	−0.2	5–4	6.5
18	Seahawks	7–10	7.3	−0.3	3–5	7.9
19	Chiefs	12–5	12.3	−0.3	5–3	12.5
20	Bears	6–11	6.6	−0.6	3–3	7.1
21	Ravens	8–9	8.8	−0.8	6–6	6.6
22	Colts	9–8	9.9	−0.9	2–5	9.0
23	Jets	4–13	4.9	−0.9	4–5	4.4
24	Panthers	5–12	5.9	−0.9	2–6	5.7
25	Bills	11–6	12.2	−1.2	0–5	13.5
26	Broncos	7–10	8.2	−1.2	1–5	7.7
27	Lions	3–13–1	4.8	−1.3	2–6–1	3.9
28	49ers	10–7	11.3	−1.3	5–5	12.1
29	Browns	8–9	9.5	−1.5	5–6	8.8
30	Buccaneers	13–4	14.7	−1.7	6–0	12.6
31	Chargers	9–8	10.8	−1.8	5–5	10.2
32	Jaguars	3–14	5.5	−2.5	2–4	3.2

Replay wins: the sum, over every game, of how often the team wins a replay with the same day’s form. Coin-flip wins: the same with only kicks, bounces, drops, conversions and calls re-rolled; it is the number that best predicts the rest of a season (validation). One-score: games decided by 8 points or fewer.

Did luck add wins or take them away?

Each logo is a team. Across: the wins its play was worth (replay wins). Up: the wins it actually got. On the diagonal the two match; above it, luck added wins; below it, luck cost wins.

Luck added wins Luck cost wins 0246810121416 0246810121416 Wins their play was worth (replay wins) Actual wins

Game by game

The luck index of every game: 100 × (the result − how often they win the replay). A loss in a game they win 9 times in 10 scores −90. Teams sorted luckiest to unluckiest.