Final standings (official)
Central League
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| Rank | Team | G | W | L | T | PCT | GB |
|---|---|---|---|---|---|---|---|
| 1 | Tokyo Yakult Swallows Champion | 143 | 73 | 52 | 18 | .584 | — |
| 2 | Hanshin Tigers | 143 | 77 | 56 | 10 | .579 | 0.0 |
| 3 | Yomiuri Giants | 143 | 61 | 62 | 20 | .496 | 11.0 |
| 4 | Hiroshima Toyo Carp | 143 | 63 | 68 | 12 | .481 | 13.0 |
| 5 | Chunichi Dragons | 143 | 55 | 71 | 17 | .437 | 18.5 |
| 6 | Yokohama DeNA BayStars | 143 | 54 | 73 | 16 | .425 | 20.0 |
Pacific League
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| Rank | Team | G | W | L | T | PCT | GB |
|---|---|---|---|---|---|---|---|
| 1 | ORIX Buffaloes Champion | 143 | 70 | 55 | 18 | .560 | — |
| 2 | Chiba Lotte Marines | 143 | 67 | 57 | 19 | .540 | 2.5 |
| 3 | Tohoku Rakuten Golden Eagles | 143 | 66 | 62 | 15 | .516 | 5.5 |
| 4 | Fukuoka SoftBank Hawks | 143 | 60 | 62 | 21 | .492 | 8.5 |
| 5 | Hokkaido Nippon-Ham Fighters | 143 | 55 | 68 | 20 | .447 | 14.0 |
| 6 | Saitama Seibu Lions | 143 | 55 | 70 | 18 | .440 | 15.0 |
Season highlights
At the end of August, eventual champion Tokyo Yakult Swallows stood at 27.8% in this model.
Eventual champion Tokyo Yakult Swallows bottomed out at 0.8% in this model (as of May 11, 2021).
At the end of August, eventual champion ORIX Buffaloes stood at 56.2% in this model.
Eventual champion ORIX Buffaloes bottomed out at 0.4% in this model (as of Apr 18, 2021).
Days in first place are counted per day with games played.
Games over .500
Balance = wins minus losses. The horizontal zero line is the .500 mark. The ▼ marks along the top of the plot show the days the lead changed hands, colored for the new leader.
Standings over time
Daily standings ordered by winning percentage (wins over decisions) at the end of each day. Teams tied on percentage share the same rank, so lines can overlap. Official tiebreakers such as head-to-head records are not applied to the daily series.
Win-loss calendar
A tall dark cell is a win, a short light cell a loss, and a thin line a tie - the heights keep the chart readable even without color. Doubleheaders split the day's cell vertically.
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Pennant odds over time
Estimates from re-running the current board's model on each day's data. Probabilities do not guarantee outcomes.
Interleague records
Interleague results only (rows in league and official-standings order, not by winning percentage).
Central League
| Team | W - L - T |
|---|---|
| Tokyo Yakult Swallows | 10 - 8 - 0 |
| Hanshin Tigers | 11 - 7 - 0 |
| Yomiuri Giants | 7 - 8 - 3 |
| Hiroshima Toyo Carp | 3 - 12 - 3 |
| Chunichi Dragons | 9 - 7 - 2 |
| Yokohama DeNA BayStars | 9 - 6 - 3 |
Pacific League
| Team | W - L - T |
|---|---|
| ORIX Buffaloes | 12 - 5 - 1 |
| Chiba Lotte Marines | 8 - 9 - 1 |
| Tohoku Rakuten Golden Eagles | 9 - 8 - 1 |
| Fukuoka SoftBank Hawks | 5 - 9 - 4 |
| Hokkaido Nippon-Ham Fighters | 7 - 11 - 0 |
| Saitama Seibu Lions | 7 - 7 - 4 |
Season rules and notes
- Rows follow the official final standings (not necessarily in order of winning percentage).
- Beyond the league schedule, "オールスター" (All-Star Series) was held this season (2 games, 2021-07-16 to 2021-07-17). The standings and charts on this page cover the league schedule only.
- Beyond the league schedule, "CS ファーストS" (Climax Series First Stage) was held this season (4 games, 2021-11-06 to 2021-11-07). The standings and charts on this page cover the league schedule only.
- Beyond the league schedule, "CS ファイナルS" (Climax Series Final Stage) was held this season (6 games, 2021-11-10 to 2021-11-12). The standings and charts on this page cover the league schedule only.
- Beyond the league schedule, "日本シリーズ" (Japan Series) was held this season (6 games, 2021-11-20 to 2021-11-27). The standings and charts on this page cover the league schedule only.
This page is reference material. Where it differs from the official records, the official records take precedence.