GRAND SLAM TRACK: PHILLY DAY 1 REACTION SHOW | MELISSA JEFFERSON UPSETS GABBY THOMAS, MARCO AROP GOES 1:43

The Grand Slam Track series rolls into iconic Franklin Field and we’ve got all the biggest moments covered in this jam-packed episode. Join Eric Jenkins, Anderson Emerole, Paul Hof-Mahoney, and Aisha Praught-Leer as they break down all the drama, surprises, and standout performances from Day 1 of Grand Slam Track: Philadelphia.

Some of today's highlights include:

— Melissa Jefferson-Wooden stuns the field in the 200m, clocking her first sub-22 with a blazing 21.99 to edge Olympic champ Gabby Thomas (22.10).

— Marco Arop dominates a stacked 800m, pulling away with authority to win in 1:43.38, a full second clear of World Indoor champ Josh Hoey.

— Jessica Hull makes it honest in the 1500m, but Diribe Welteji’s closing speed seals the win in 3:58.04, just ahead of Hull’s 3:58.36.

— Kenny Bednarek stays hot, earning his third straight 200m win with a smooth 19.95.

— Ackera Nugent sets a Franklin Field record in the 100m hurdles, winning in 12.44 over Tia Jones (12.60), while Sydney McLaughlin-Levrone places fifth in her short hurdles debut at 12.70.

We’ll be back tomorrow to break down Day 2 from Philly!