Algodoo

1st: Isabelline
2nd: Ink
3rd: Irresistible
4th: Ivory
5th: Independence
6th: Harlequin
7th: Hot Magenta
8th: Ice
9th: Imperial Yellow
10th: Helium
11th: Indian Red
12th: Hot Pink
13th: Imperial Purple
14th: Imperial Red
15th: Honey
16th: Orange-Red (Guest)
17th: Inchworm
18th: Heliotrope
19th: Blue Screen (Guest)
20th: Icterine
21st: Indigo Blue
22nd: Honeydew
23rd: Iron
24th: Iguana
25th: Imperial Blue
26th: Iris
27th: Candy Purple (Guest)
28th: Iceberg
29th: Indigo Purple
30th: Infrared

Isabelline and Harlequin move on to the final race.
For every letter there will be a marble to represent it (except for Q, you'll see why).
As always, you can reccomend up to 10 guests if you wish to.
Edit: what I said about Q also applies for Y

for q you shoula also have quinacridone

-danielw104 I'm not too keen on modifying the color set I'm using for these races. I'll definetly add it as a guest though.

Egg Yolk, H:43, S:83, V:96
Natural Blue, H:203, S:65, V:82
Indian Orange, H:23, S:87, V:100
Dark Pastel Purple, H:267, S:55, V:87
Cherry Blossom, H:335, S:40, V:100
Qahvei, H:38, S:97, V:49
Non-Photo, H:193, S:31, V:93
Obstinate, H:15, S:80, V:84
Xanthous, H:41, S:80, V:95
Columbia Purple, H:264, S:77, V:80

-Curtis14Pro Everyone made it except for Egg Yolk since it already exists and I don't want to repeat colors.

Calm Denim, H:247, S:46, V:64, A:100

RGB: H-0 S-300 V-100, A-100
poststep: e.this.colorHSVA = e.this.colorHSVA + [3, 0, 0, 0]

Very Transparent Orange: H-30 S-100 V-100 A-20