Who won the most stages, relatively?

Cipollini won the most stages, but he also started 240 stages, which is more than the average rider. So he had more chances than other riders. That's why I wondered: who won the highest percentage of the stages he started? See the list below. There are eight riders with a higher winning percentage than Cipollini, who won 17.5% of his stages, which I'll explain below. See also the overview for the Tour and the Vuelta.

Name Stages won Stages started Ratio
M. Kittel 4 11 36.364%
C. Girardengo 30 87 34.483%
Alf. Binda 41 128 32.031%
F. Maertens 7 24 29.167%
T. Pogačar 6 21 28.571%
L. Guerra 31 121 25.620%
J. Alavoine 2 8 25.000%
G. Olmo 20 90 22.222%
M. Cipollini 42 240 17.500%
J. Carrara 1 6 16.667%
M. Poblet 20 129 15.504%
R. Van Steenbergen 15 105 14.286%
W. Reybrouck 1 7 14.286%
O. Egg 1 7 14.286%
L. Proost 1 7 14.286%
R. De Vlaeminck 22 159 13.836%
E. Merckx 24 174 13.793%
M. Cavendish 17 130 13.077%
L. Ganna 6 46 13.043%
T. Merlier 4 31 12.903%
R. Van Looy 12 94 12.766%
G. Loncke 2 17 11.765%
G. Belloni 11 98 11.224%
J. Momene 1 9 11.111%
J. Degenkolb 1 9 11.111%
A. Petacchi 27 244 11.066%
A. Leoni 17 155 10.968%
R. Di Paco 15 140 10.714%
P. Sercu 13 123 10.569%
M. Mara 7 68 10.294%
J. Fuente 9 89 10.112%
F. Ganna 7 70 10.000%
M. Cimatti 4 40 10.000%
O. Kooij 3 30 10.000%
J. Dortignacq 1 10 10.000%
J. Milan 4 42 9.524%
S. Schumacher 2 21 9.524%
R. McEwen 12 127 9.449%
F. Coppi 22 235 9.362%
G. Azzini 4 43 9.302%
A. Soler 4 43 9.302%
A. Greipel 7 77 9.091%
N. Bouhanni 3 33 9.091%
F. Cortinovis 1 11 9.091%
G. Van Roosbroeck 1 11 9.091%
R. Van Linden 9 102 8.824%
A. Démare 8 91 8.791%
O. Bizzi 13 150 8.667%
B. Hinault 6 70 8.571%
L. Jalabert 3 35 8.571%
O. Conte 13 156 8.333%
W. Schroeders 3 36 8.333%
M. Priamo 1 12 8.333%
R. Vainsteins 1 12 8.333%
G. Mäder 1 12 8.333%
G. Oliveri 1 12 8.333%
G. Saronni 24 291 8.247%
A. Bevilacqua 11 138 7.971%
A. Zülle 3 38 7.895%
F. Moser 23 293 7.850%
U. Freuler 15 193 7.772%
R. Evenepoel 2 26 7.692%
R. Venturelli 1 13 7.692%
A. Crespi 1 13 7.692%
C. Gaul 11 145 7.586%
F. Gay 4 54 7.407%
M. Demeyer 2 27 7.407%
I. Quaranta 6 82 7.317%
E. Meini 5 69 7.246%
R. Riccò 3 42 7.143%
P. Ackermann 3 42 7.143%
W. Weylandt 1 14 7.143%
B. Girmay 1 14 7.143%
G. Brunero 7 100 7.000%
C. Cinelli 3 43 6.977%
W. Planckaert 3 43 6.977%
R. Giusti 2 29 6.897%
M. Argentin 13 190 6.842%
G. Valetti 7 104 6.731%
M. Pedersen 5 75 6.667%
L. Herrera 3 45 6.667%
C. Ewan 5 78 6.410%
C. Galetti 5 78 6.410%
F. Bitossi 21 329 6.383%
B. Aimo 4 63 6.349%
G. Bontempi 16 253 6.324%
J. Bernard 4 64 6.250%
P. Albini 3 48 6.250%
J. Tarling 1 16 6.250%
E. Pavesi 4 66 6.061%
G. Bartali 17 282 6.028%
D. Beni 3 50 6.000%
J. van Poppel 4 67 5.970%
M. Indurain 4 67 5.970%
E. Bertocchi 4 68 5.882%
K. Gil Pérez 1 17 5.882%
F. Vervaecke 1 17 5.882%
J. Jiménez 4 69 5.797%
M. Basso 15 260 5.769%
H. Koblet 7 122 5.738%
M. Matthews 3 53 5.660%
D. Piemontesi 11 196 5.612%
S. Yates 6 108 5.556%
T. Dumoulin 4 72 5.556%
C. Saponetti 2 36 5.556%
J. Ayuso 1 18 5.556%
V. Lafay 1 18 5.556%
G. Cuniolo 1 18 5.556%
V. Bariviera 6 109 5.505%
L. Annoni 3 55 5.455%
E. Daems 2 37 5.405%
A. Fantini 7 131 5.344%
A. González 3 57 5.263%
I. De Zan 1 19 5.263%
M. Dancelli 11 211 5.213%
G. Magnusson 3 58 5.172%
K. Arvesen 2 39 5.128%
P. Roglič 4 79 5.063%
V. Adorni 11 219 5.023%
A. Van Heerden 1 20 5.000%
R. Debenne 1 20 5.000%
M. Archambaud 1 20 5.000%