Yoshinori Tateyama played in Major League Baseball from 2011 to 2012, appearing in 53 games over 2 seasons. He recorded a total of 3 W and 0 L, an ERA of 5.75, 61 SO, a WHIP of 1.18, and a WAR of −0.4.
Yoshinori Tateyama Yearly Pitching Stats
This chart shows the season-by-season changes in ERA, SO, and IP for Yoshinori Tateyama.
🧾 Basic Profile
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| Name | Yoshinori Tateyama |
| Date of Birth | December 26, 1975 |
| Nationality |  Japan |
| MLB Debut | 2011 |
📊 Career Summary
Yoshinori Tateyama appeared in 53 games over 2 MLB seasons from 2011 to 2012. Below are his cumulative stats and MLB all-time rankings:
| GS | 0 (MLB Rank: 7,909) |
| GF | 13 (MLB Rank: 4,287) |
| W | 3 (MLB Rank: 5,724) |
| L | 0 (MLB Rank: 9,033) |
| SV | 1 (MLB Rank: 3,494) |
| ERA | 5.75 (MLB Rank: 8,697) |
| IP | 61 (MLB Rank: 6,386) |
| SO | 61 (MLB Rank: 5,300) |
| BB | 17 (MLB Rank: 7,289) |
| H | 55 (MLB Rank: 6,740) |
| HR | 12 (MLB Rank: 4,714) |
| SO9 | 9 (MLB Rank: 961) |
| BB9 | 2.51 (MLB Rank: 9,753) |
| H9 | 8.11 (MLB Rank: 9,621) |
| HR9 | 1.77 (MLB Rank: 1,149) |
| WHIP | 1.18 (MLB Rank: 10,727) |
| WAR | −0.4 (MLB Rank: 9,223) |
📊 Last Season Summary (2012)
In his final season (2012), Yoshinori Tateyama recorded the following stats:
| GS | 0 |
| GF | 5 |
| W | 1 |
| ERA | 9 |
| IP | 17 |
| SO | 18 |
| BB | 6 |
| H | 18 |
| HR | 4 |
| SO9 | 9.53 |
| BB9 | 3.18 |
| H9 | 9.53 |
| HR9 | 2.12 |
| WHIP | 1.412 |
| WAR | −0.6 |
📈 Seasonal Highlights
- Most Wins: 2011, 2 W
- Most SO: 2011, 43 SO
- Most IP: 2011, 44 IP
- Best WAR: 2011, 0.2 WAR
- Best ERA: 2011, 4.5 ERA
🎯 Postseason Performance
Yoshinori Tateyama appeared in 1 games during the postseason. He recorded an ERA of 0, pitched 0.2 IP, struck out 0 batters, with 0 W and 0 L.
Yoshinori Tateyama Career Pitching Stats Overview
| season | W | L | ERA | W-L% | SV | SO | IP | WAR | WHIP | HR | H | BB | R | ER | ERA+ | FIP | SO9 | SO/BB | GS | G | GF | CG | SHO | HR9 | H9 | BB9 | BK | HBP | IBB | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2011 | 2 | 0 | 4.5 | 1 | 1 | 43 | 44 | 0.2 | 1.091 | 8 | 37 | 11 | 23 | 22 | 99 | 4.32 | 8.8 | 3.91 | 0 | 39 | 8 | 0 | 0 | 1.6 | 7.6 | 2.3 | 0 | 2 | 4 | 1 | 181 |
2012 | 1 | 0 | 9 | 1 | 0 | 18 | 17 | -0.6 | 1.412 | 4 | 18 | 6 | 19 | 17 | 50 | 5.09 | 9.5 | 3 | 0 | 14 | 5 | 0 | 0 | 2.1 | 9.5 | 3.2 | 0 | 0 | 1 | 0 | 76 |