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Kai-Wei Teng played 2 major-league seasons (2024-2025) as a P (12). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 2 season lines
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 26 | SFN | 4 | 0 | 0 | 0 | 0 | 11 | 7 | 8 | 9.82 | 42 |
| 2025 | 27 | SFN | 8 | 7 | 2 | 4 | 0 | 29.2 | 39 | 17 | 6.37 | 66 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 2024 | P | 4 | 0 | 2 | 2 | 0 | 0 |
| 2025 | P | 8 | 7 | 2 | 1 | 1 | 0 |
Team codes are the source codes (e.g. NYN for the New York Mets, BS1 for the 1875 Boston club). OPS+ is league-season normalized, not park-adjusted; unrecorded source values (such as RBI in the earliest recorded seasons) are absent, never zero-filled.
Kai-Wei Teng is a playable Legends Deck card, rated from real Statcast data and refreshed nightly: view the Kai-Wei Teng card.
Kai-Wei Teng appears in 4 archived official MLB transactions (2 trades), newest first.
| Date | Type | From | To | Details |
|---|---|---|---|---|
| Jan 30, 2026 | Trade | San Francisco Giants | Houston Astros | San Francisco Giants traded RHP Kai-Wei Teng to Houston Astros for C Jancel Villarroel and Future Considerations. |
| Nov 29, 2024 | Signed as free agent | — | San Francisco Giants | San Francisco Giants signed free agent RHP Kai-Wei Teng to a minor league contract. |
| Jul 31, 2019 | Trade | Minnesota Twins | San Francisco Giants | San Francisco Giants traded RHP Sam Dyson to Minnesota Twins for RF Jaylin Davis, RHP Kai-Wei Teng and RHP Prelander Berroa. |
| Oct 20, 2017 | Signed as free agent | — | Minnesota Twins | Minnesota Twins signed free agent RHP Kai-Wei Teng to a minor league contract. |
From MLB’s official StatsAPI transactions feed (2011 to the current season, trades/signings/releases involving major-league clubs). Browse the full archive.
Every career total and season line is computed from the SABR / Sean Lahman baseball database (2025 edition, CC BY-SA 3.0), the same source behind our historical position leaderboards. Rate stats use league-season normalization only (OPS+ and ERA+ as marked, never park-adjusted); unrecorded early-era values stay absent rather than being invented. Career totals sum only what the source records.
Award winners and MVP / Cy Young / Rookie of the Year voting history come from the same database; the year pages live under MLB award voting history. Official transactions (2011 to the current season) come from the MLB StatsAPI feed on our transactions archive.