Spencer Bivens

Active

Estrellas Orientales · RP

Age 326' 4" · 220 lbsThrows Right

#692 Preseason

News Updates

Spencer Bivens optioned to Triple-A
Kansas City Royals pitcher Spencer Bivens was optioned to Triple-A Omaha on Monday. The move opens roster space for the Royals and sends the prospect back to the minors for continued development.
Sep 22, 2026

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2024	San Francisco Giants	27	2	3	1	1	3.14	1.19	37	48.2	11
2025	San Francisco Giants	54	0	4	3	3	4.00	1.33	61	81.0	25
2026	2 teams▼	6	0	0	0	0	9.39	2.48	12	7.2	6
Career	Totals	87	2	7	4	4	4.00	1.35	110	137.1	42

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2022	2 teams▼	27	0	3	2	3	3.95	1.32	48	43.1	22
2023	2 teams▼	33	4	8	4	0	3.68	1.27	92	93	38
2024	Sacramento River Cats	27	0	5	1	8	2.92	1.20	42	49.1	17
2026	2 teams▼	36	7	5	3	1	4.86	1.39	73	76.0	29
Career	Totals	123	11	21	10	12	3.92	1.30	255	261.2	106

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Last Week / Last Month

Current season · MLB only

7 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
6	0	7.2	0-0	0	9.39	2.48	12	6

30 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
6	0	7.2	0-0	0	9.39	2.48	12	6

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo94.7 mph

Avg Spin2016 rpm

Whiff %24.1%

K %28.6%

BB %14.3%

Hard Hit %25.0%

Barrel %8.3%

xERA5.51

xBA Against0.264

xSLG Against0.449

BA Against0.371

SLG Against0.486

What These Stats Mean

FB Velo — Average fastball velocity. Harder throwers generate more swings and misses, setting up every other pitch in their arsenal. Velocity is the foundation of strikeout upside.

Avg Spin — Average spin rate across all pitches. Higher spin creates more movement and makes pitches harder to square up — elite spinners run better strikeout and batting average against numbers.

Whiff % — Swings-and-misses per swing. The most direct measure of a pitcher's ability to miss bats and the best leading indicator of strikeout rate.

K % — Strikeout rate per batter faced. The core fantasy pitching stat — high K% means reliable strikeout totals that hold up even in shorter starts.

BB % — Walk rate per batter faced. The primary control metric. High BB% tanks ERA and WHIP and keeps baserunners on constantly. Elite starters typically run below 7%.

Hard Hit % — Percentage of batted balls hit 95 mph or harder against. Low hard-hit% means weak contact, protecting both ERA and the defense behind the pitcher.

Barrel % — Percentage of batted balls barreled against. The most direct home run predictor — low barrel% pitchers rarely give up long balls.

xERA — Expected ERA based on contact quality allowed, removing the effect of sequencing, luck, and defense. Better predictor of future ERA than ERA itself.

xBA Against — Expected batting average opponents should hit based on contact quality. A gap between xBA and actual BA indicates unsustainable luck in either direction.

xSLG Against — Expected slugging allowed based on contact quality. High xSLG against predicts future extra-base damage; low xSLG means the pitcher is genuinely suppressing power.

BA Against — Actual batting average opponents are hitting — a key WHIP component. Check xBA to see if the number is sustainable.

SLG Against — Actual slugging allowed. Captures hits, doubles, triples, and home runs — lower means the pitcher is limiting the power damage he gives up.

GB% — Ground ball rate. High GB% pitchers generate double plays, limit home runs, and keep the ball in the park — great for protecting ERA and WHIP ratios.

FB% — Fly ball rate. High FB% pitchers give up more air contact — dangerous when combined with high exit velocity, less so when contact is soft.

Loading player data...

Year

Team

ERA

WHIP

2024

San Francisco Giants

3.14

1.19

48.2

2025

San Francisco Giants

4.00

1.33

81.0

2026

2 teams▼

9.39

2.48

7.2

Career

Totals

4.00

1.35

110

137.1

Year

Team

ERA

WHIP

2022

2 teams▼

3.95

1.32

43.1

2023

2 teams▼

3.68

1.27

2024

Sacramento River Cats

2.92

1.20

49.1

2026

2 teams▼

4.86

1.39

76.0

Career

Totals

123

3.92

1.30

255

261.2

106

W-L

ERA

WHIP

7.2

0-0

9.39

2.48

W-L

ERA

WHIP

7.2

0-0

9.39

2.48