Kai-Wei Teng

Kai-Wei Teng

26-Year-Old PitcherSP
San Francisco Giants
2025 Fantasy Outlook
There was no outlook written for Kai-Wei Teng in 2025. Check out the latest news below for more on his current fantasy value.
Signed a one-year contract with the Giants in November of 2024.
Fans six in three-inning start
PSan Francisco Giants
September 20, 2025
Teng allowed two runs on a hit and two walks while striking out six over three innings in a no-decision versus the Dodgers on Saturday.
Analysis
Teng threw just 39 of 74 pitches for strikes but was able to limit the damage to a two-run home run by Max Muncy in the first inning. The Giants look to be limiting Teng's workload -- he's reached the five-inning mark in just two of his eight major-league appearances this season. He's at a 6.37 ERA, 1.55 WHIP and 39:17 K:BB through 29.2 innings with the big club. Teng could get one more appearance this season, which is tentatively projected to be at home versus the Rockies in the final series of the year.
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Pitching Stats
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2025 MLB Game Log
2025
2024
2025 MLB Game Log
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Scoring
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2024 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
72
Last 10 Games
72
Last 5 Games
78
How many pitches does Kai-Wei Teng generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does Kai-Wei Teng generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
 
 
-15%
BAA vs LHP
2025
 
 
-6%
BAA vs RHP
2024
 
 
-44%
BAA vs LHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .253 92 19 7 20 3 0 1
Since 2023vs Right .296 102 27 18 24 4 0 3
2025vs Left .262 72 16 5 16 2 0 1
2025vs Right .245 67 23 12 13 3 0 1
2024vs Left .222 20 3 2 4 1 0 0
2024vs Right .393 35 4 6 11 1 0 2
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-43%
ERA on Road
2025
 
 
-28%
ERA on Road
2024
 
 
-54%
ERA on Road
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 10.64 2.18 11.0 1 1 0 4.9 8.2 0.0
Since 2023Away 6.07 1.52 29.2 1 3 0 12.1 4.6 1.2
2025Home 8.10 1.80 6.2 1 1 0 5.4 6.8 0.0
2025Away 5.87 1.48 23.0 1 3 0 13.7 4.7 0.8
2024Home 14.54 2.77 4.1 0 0 0 4.2 10.4 0.0
2024Away 6.75 1.65 6.2 0 0 0 6.8 4.1 2.7
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Kai-Wei Teng compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
2.29
 
K/9
11.8
 
BB/9
5.2
 
HR/9
0.6
 
Fastball
93.1 mph
 
ERA
6.37
 
WHIP
1.55
 
BABIP
.377
 
GB/FB
1.15
 
Left On Base
50.9%
 
Exit Velocity
80.1 mph
 
Barrels/BBE
0.8%
 
Spin Rate
2584 rpm
 
Balls Hit 95+ MPH
16.2%
 
Swinging Strike
11.9%
 
Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Kai-Wei Teng See More
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More Fantasy News
Decent in no-decision
PSan Francisco Giants
September 15, 2025
Teng allowed one unearned run on two hits and a walk while striking out five over four innings in a no-decision versus the Diamondbacks on Monday.
Analysis
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Fans eight in Sunday's loss
PSan Francisco Giants
September 7, 2025
Teng (2-4) took the loss against the Cardinals on Sunday, allowing four runs on three hits and five walks while striking out eight across four innings.
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Records victory Monday
PSan Francisco Giants
September 2, 2025
Teng (2-3) earned the win over Colorado on Monday, allowing two runs on nine hits and no walks while striking out eight batters over 5.1 innings.
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Promoted, joining rotation Monday
PSan Francisco Giants
August 31, 2025
The Giants recalled Teng from Triple-A Sacramento on Sunday, and he's expected to start Monday's game against the Rockies in Colorado, Shayna Rubin of the San Francisco Chronicle reports.
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Going back to minors
PSan Francisco Giants
August 21, 2025
The Giants optioned Teng to Triple-A Sacramento on Thursday.
Analysis
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