Jackson Stephens

Free AgentMLB

ID: 623451

Outings

Total Pitches

Strikeouts

Walks

2.00

K/BB

Proprietary Metrics

3 games • 51 pitches

79Tunnel ScoreRelease point similarity 72SeparationMovement divergence 8Extension ScoreFastball extension & velo jump

What do these metrics mean?

Tunnel Score (0-100): Measures how similar a pitcher's pitches look coming out of the hand before they diverge. Higher scores indicate better deception—the ball looks the same to the batter regardless of pitch type until it's too late.

Separation Score (0-100): Measures how much the pitches diverge at the plate based on horizontal and vertical movement. Higher separation means more contrast between pitch types, making the arsenal harder to square up.

Extension Score (0-100): Measures fastball extension and perceived velocity jump. Higher scores indicate better release extension and effective speed vs release speed, making the fastball appear faster to batters.

Arsenal Over Time

Velocity Over Time

Spin Rate Over Time

All Outings (48)

Date▲▼	Opp▲▼	Pitches▲▼	Velo▲▼	K▲▼	BB▲▼	SwStr%▲▼	Tunnel▲▼	Sep▲▼	Pair▲▼
2024-05-15	CHC	17	89.1(92.4)	1	1	5.9%	79	43	FF/SI
2024-05-14	CHC	13	90.0(93.6)	1	0	15.4%	82	-	-
2024-05-04	LAD	21	83.8(93.1)	0	0	9.5%	77	100	CU/FF
2023-09-29	WSH	29	87.8(94.3)	2	0	10.3%	72	72	CU/FF
2023-09-26	CHC	34	88.3(94.4)	0	0	8.8%	83	72	CU/FF
2023-09-21	WSH	38	88.6(93.3)	0	2	7.9%	79	79	CU/SI
2023-09-16	MIA	68	88.2(94.9)	4	2	7.4%	81	77	CU/SI
2023-09-11	PHI	57	86.7(94.2)	5	1	19.3%	78	77	CU/SI
2022-10-11	PHI	27	88.7(96.0)	2	0	18.5%	73	100	CU/SI
2022-10-05	MIA	56	90.1(95.4)	0	2	7.1%	83	87	CU/SI
2022-09-28	WSH	16	90.5(95.2)	0	1	0.0%	81	52	CH/FF
2022-09-25	PHI	29	88.2(94.2)	3	0	13.8%	73	100	CU/FF
2022-09-23	PHI	11	86.5(94.9)	1	0	0.0%	78	100	CH/CU
2022-09-21	WSH	9	86.0(94.8)	0	0	0.0%	-	-	-
2022-09-14	SF	20	86.5(94.2)	0	0	0.0%	69	91	CU/FF
2022-09-11	SEA	10	90.6(96.0)	0	0	0.0%	78	-	-
2022-08-26	STL	23	89.3(94.9)	0	1	4.3%	66	100	CU/FF
2022-08-21	HOU	33	88.1(94.4)	3	1	12.1%	74	97	CU/FF
2022-08-20	HOU	15	90.3(95.2)	1	1	20.0%	74	100	CU/SI
2022-08-17	NYM	22	91.0(95.8)	0	0	4.5%	77	100	CU/FF
2022-08-13	MIA	24	87.3(95.8)	2	1	8.3%	66	100	CU/SI
2022-08-06	NYM	36	88.6(95.6)	0	1	5.6%	73	98	CU/FF
2022-08-04	NYM	20	88.1(96.0)	0	0	0.0%	71	100	CU/FF
2022-08-02	PHI	37	85.8(94.8)	1	2	8.1%	79	93	CU/FF
2022-07-24	LAA	60	86.4(95.3)	5	2	16.7%	75	79	CU/FF
2022-07-22	LAA	23	86.7(94.9)	2	0	8.7%	63	100	CU/FF
2022-07-13	NYM	14	86.9(95.1)	2	0	14.3%	68	89	CU/FF
2022-07-11	NYM	25	87.2(95.4)	2	1	12.0%	68	100	CU/FF
2022-07-08	WSH	17	91.6(95.3)	0	0	5.9%	70	39	FF/SI
2022-07-05	STL	14	89.6(95.8)	1	0	14.3%	64	100	CU/FF
2022-06-30	PHI	13	87.2(94.7)	1	1	7.7%	86	100	CU/SI
2022-06-26	LAD	10	83.1(95.1)	0	0	0.0%	-	-	-
2022-06-21	SF	42	87.3(95.3)	2	1	11.9%	66	100	CU/FF
2022-06-14	WSH	44	89.1(96.1)	1	0	9.1%	69	100	CU/FF
2022-06-10	PIT	22	87.4(94.8)	1	0	4.5%	68	100	CU/SI
2022-06-04	COL	11	90.2(94.3)	0	0	0.0%	63	30	CH/FF
2022-05-31	AZ	12	86.4(94.9)	0	0	8.3%	69	95	CU/FF
2022-05-29	MIA	14	86.0(94.6)	0	0	21.4%	78	100	CU/SI
2022-05-27	MIA	20	89.4(95.8)	2	0	25.0%	76	100	CU/SI
2022-05-23	PHI	18	89.3(94.3)	2	0	16.7%	77	100	CU/FF
2022-05-21	MIA	25	90.4(95.9)	2	1	8.0%	70	100	CU/SI
2022-05-15	SD	37	88.7(95.8)	1	0	16.2%	75	89	CU/SI
2022-05-10	BOS	17	85.8(95.5)	2	0	5.9%	77	100	CU/FF
2022-05-06	MIL	15	86.1(95.0)	1	0	6.7%	80	100	CU/SI
2022-05-01	TEX	41	87.8(96.1)	3	0	9.8%	76	98	CU/SI
2022-04-24	MIA	21	87.5(95.7)	2	1	9.5%	80	94	CU/SI
2022-04-18	LAD	23	88.7(95.3)	0	1	0.0%	81	91	CU/FF
2022-04-12	WSH	61	87.0(94.3)	4	1	8.2%	83	87	CU/FF