python - Not getting desired XPath

To summarise, how can I get an XPath to scrape the odds in my script.

An XPath that gives different values.

groups = ".//div[contains(@class, 'gl-ParticipantOddsOnlyDarker gl')]"

xp_ba3 = ".//span[contains(@class, 'gl-Participa')]"

The XPath needs for both groups and xp_ba3 needs to be the same length and different for it to behave correctly (I believe).

Desired XPath looks like:

XPath: //div[contains(@class, 'gl-Market_HasLabels')]/following-sibling::div[contains(@class, 'gl-Market_PWidth-12-3333')][1]//div[contains(@class, 'gl-ParticipantOddsOnly')].

This works but when I add this logic and run the script -- it does not work.

Webpage odds I am after.

My output instead of different odds looks like:

[['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87'], ['2.87']]

How can I get the odds to work?

HTML:

<div class="gl-ParticipantOddsOnlyDarker gl-ParticipantOddsOnly gl-Participant_General sl-MarketCouponAdvancedBase_LastChild " >
        <span class="gl-ParticipantOddsOnly_Odds" > 2.45 </span>
    </div ><span class="gl-ParticipantOddsOnly_Odds">2.45</span> 

from website