Hold percentage — full ATP & WTA ranking

Leader

Janice Tjen

76.0% of service games held

Average: 63.5%
Std. dev.: 4.2
Leader sits at: 3.0σ
Range: 51.8 … 76.0

678 players

#	Player	Value	Pctl	Sample
1	Janice Tjen#36	76.0%	100.0	102
2	Martyna Kubka	75.3%	99.9	73
3	Victoria Mboko#12	75.3%	99.7	96
4	FL Fangzhou Liu	74.8%	99.6	33
5	KS Katie Swan	74.4%	99.4	56
6	EB Emina Bektas	74.0%	99.3	59
7	JG Joanna Garland	73.5%	99.1	61
8	Darja Vidmanova#92	73.5%	99.0	66
9	POCCarol Young Suh Lee	73.3%	98.8	99
10	AT Anca Alexia Todoni	73.2%	98.7	67
11	Lois Boisson	73.2%	98.5	49
12	Talia Gibson#74	72.9%	98.4	120
13	RM Rebecca Marino	72.5%	98.2	67
14	LH Lucie Havlickova	72.4%	98.1	50
15	DA Destanee Aiava	72.3%	97.9	57
16	SV Stephanie Judith Visscher	72.1%	97.8	79
17	AR Amelia Rajecki	72.1%	97.6	64
18	Sofia Costoulas	72.1%	97.5	94
19	Viktória Hrunčáková	72.1%	97.3	94
20	YZ Ying Zhang	72.0%	97.2	52
21	JA Julia Avdeeva	72.0%	97.0	71
22	JP Jessika Ponchet	71.9%	96.9	105
23	Lilli Tagger#46	71.9%	96.8	59
24	Jeline Vandromme#132	71.7%	96.6	75
25	LK Linda Klimovicova	71.6%	96.5	76
26	AL Ashley Lahey	71.6%	96.3	34
27	EA Eva Guerrero Alvarez	71.6%	96.2	76
28	VA Victoria Allen	71.6%	96.0	52
29	AO Angella Okutoyi	71.4%	95.9	38
30	VY Valeriya Yushchenko	71.4%	95.7	39
31	DK Daria Khomutsianskaya	71.3%	95.6	64
32	CN Clervie Ngounoue	71.2%	95.4	51
33	Kaja Juvan	71.2%	95.3	69
34	AK Adithya Karunaratne	71.2%	95.1	38
35	AB Amarni Banks	71.1%	95.0	44
36	KK Katarina Kuzmova	71.1%	94.8	102
37	MS Mika Stojsavljevic	71.0%	94.7	44
38	Maddison Inglis#130	71.0%	94.5	78
39	LM Lea Ma	70.9%	94.4	59
40	AS Astra Sharma	70.8%	94.2	74
41	HT Harmony Tan	70.6%	94.1	98
42	JK Jana Kovackova	70.5%	93.9	42
43	HI Hina Inoue	70.4%	93.8	71
44	Veronika Podrez#139	70.4%	93.6	75
45	Tereza Valentova#67	70.4%	93.5	76
46	KK Kristina Kroitor	70.1%	93.4	61
47	JS Johanne Christine Svendsen	70.0%	93.2	33
48	Francesca Jones#107	70.0%	93.1	88
49	Elizara Yaneva	70.0%	92.9	64
50	RJ Renáta Jamrichová	70.0%	92.8	38

How this is calculated

Minimum 30 matches with serve statistics. Below that the figure is noise and publishing it would be faking precision. Each family of metrics carries its own counter — 200 matches is not 200 tiebreaks.
Window. Every match since 2024 — that is where serve statistics begin in this database; before that there are none.
One division at a time. A player belongs to the Challenger/ITF division when more than half of their matches since 2024 are played there. Mixing the two ranks schedules rather than players: the raw list of closers was headed by an ITF player at 100% over twenty matches.
Not a betting signal. It describes a player, not a price. Our own prediction engine is measured against the market and loses: 0.632 log loss against 0.593.

Leader

Janice Tjen

76.0% of service games held

Average: 63.5%
Std. dev.: 4.2
Leader sits at: 3.0σ
Range: 51.8 … 76.0

678 players

#	Player	Value	Pctl	Sample
1	Janice Tjen#36	76.0%	100.0	102
2	Martyna Kubka	75.3%	99.9	73
3	Victoria Mboko#12	75.3%	99.7	96
4	FL Fangzhou Liu	74.8%	99.6	33
5	KS Katie Swan	74.4%	99.4	56
6	EB Emina Bektas	74.0%	99.3	59
7	JG Joanna Garland	73.5%	99.1	61
8	Darja Vidmanova#92	73.5%	99.0	66
9	POCCarol Young Suh Lee	73.3%	98.8	99
10	AT Anca Alexia Todoni	73.2%	98.7	67
11	Lois Boisson	73.2%	98.5	49
12	Talia Gibson#74	72.9%	98.4	120
13	RM Rebecca Marino	72.5%	98.2	67
14	LH Lucie Havlickova	72.4%	98.1	50
15	DA Destanee Aiava	72.3%	97.9	57
16	SV Stephanie Judith Visscher	72.1%	97.8	79
17	AR Amelia Rajecki	72.1%	97.6	64
18	Sofia Costoulas	72.1%	97.5	94
19	Viktória Hrunčáková	72.1%	97.3	94
20	YZ Ying Zhang	72.0%	97.2	52
21	JA Julia Avdeeva	72.0%	97.0	71
22	JP Jessika Ponchet	71.9%	96.9	105
23	Lilli Tagger#46	71.9%	96.8	59
24	Jeline Vandromme#132	71.7%	96.6	75
25	LK Linda Klimovicova	71.6%	96.5	76
26	AL Ashley Lahey	71.6%	96.3	34
27	EA Eva Guerrero Alvarez	71.6%	96.2	76
28	VA Victoria Allen	71.6%	96.0	52
29	AO Angella Okutoyi	71.4%	95.9	38
30	VY Valeriya Yushchenko	71.4%	95.7	39
31	DK Daria Khomutsianskaya	71.3%	95.6	64
32	CN Clervie Ngounoue	71.2%	95.4	51
33	Kaja Juvan	71.2%	95.3	69
34	AK Adithya Karunaratne	71.2%	95.1	38
35	AB Amarni Banks	71.1%	95.0	44
36	KK Katarina Kuzmova	71.1%	94.8	102
37	MS Mika Stojsavljevic	71.0%	94.7	44
38	Maddison Inglis#130	71.0%	94.5	78
39	LM Lea Ma	70.9%	94.4	59
40	AS Astra Sharma	70.8%	94.2	74
41	HT Harmony Tan	70.6%	94.1	98
42	JK Jana Kovackova	70.5%	93.9	42
43	HI Hina Inoue	70.4%	93.8	71
44	Veronika Podrez#139	70.4%	93.6	75
45	Tereza Valentova#67	70.4%	93.5	76
46	KK Kristina Kroitor	70.1%	93.4	61
47	JS Johanne Christine Svendsen	70.0%	93.2	33
48	Francesca Jones#107	70.0%	93.1	88
49	Elizara Yaneva	70.0%	92.9	64
50	RJ Renáta Jamrichová	70.0%	92.8	38

How this is calculated

Minimum 30 matches with serve statistics. Below that the figure is noise and publishing it would be faking precision. Each family of metrics carries its own counter — 200 matches is not 200 tiebreaks.
Window. Every match since 2024 — that is where serve statistics begin in this database; before that there are none.
One division at a time. A player belongs to the Challenger/ITF division when more than half of their matches since 2024 are played there. Mixing the two ranks schedules rather than players: the raw list of closers was headed by an ITF player at 100% over twenty matches.
Not a betting signal. It describes a player, not a price. Our own prediction engine is measured against the market and loses: 0.632 log loss against 0.593.