That sole win came at Kempton Park on 20 May 2026 — just this week — which tells you this is a horse right at the start of its story. Before that, a seventh-place finish was the only other entry on the CV, so the step forward between those two runs was sharp and immediate.
Behind the horse is John Butler, training out of Newmarket in Suffolk — the heartland of British flat racing, where the competition among yards is fierce and standards are high. Butler's yard has sent out 34 winners already this season, which is a serious number and a sign that this is an outfit in good form. When a stable is firing like that, it tends to mean the horses are fit, well-prepared, and arriving at the track ready to run. Magnesium looks like one of the beneficiaries.
At two years old with only two races under its belt, there is not much history to analyse here — and that is precisely what makes it interesting. This is a horse with almost everything still ahead of it.
| Course | Races | Results | Last visited | Win rate |
|---|---|---|---|---|
| Kempton Park Galloping |
1 | 1 win | 20 May | 100% |
| Ascot Galloping |
1 | 1 other | 8 May | 0% |