Puedes usar esta tabla como base:
Código HTML:
<table border="1" style="width: 600px">
<tr>
<td>Header 1</td>
<td colspan="2">Header 2</td>
<td>Header 3</td>
<td>Header 4</td>
</tr>
<tr>
<td rowspan="3">1</td>
<td>F</td>
<td>5</td>
<td>80</td>
<td rowspan="3">Ejemplo 1</td>
</tr>
<tr>
<td>M</td>
<td>3</td>
<td>40</td>
</tr>
<tr>
<td>D</td>
<td>1</td>
<td>30</td>
</tr>
<tr>
<td rowspan="3">2</td>
<td>F</td>
<td>10</td>
<td>25</td>
<td rowspan="3">Ejemplo 2</td>
</tr>
<tr>
<td>M</td>
<td>8</td>
<td>43</td>
</tr>
<tr>
<td>D</td>
<td>5</td>
<td>50</td>
</tr>
<tr>
<td rowspan="3">3</td>
<td>F</td>
<td>20</td>
<td>35</td>
<td rowspan="3">Ejemplo 3</td>
</tr>
<tr>
<td>M</td>
<td>15</td>
<td>30</td>
</tr>
<tr>
<td>D</td>
<td>3</td>
<td>15</td>
</tr>
</table>