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Athlete Singapore

Penny Koo

Since 2023, Penny Koo has raced HYROX 7 times at 6 events across 3 categories, the mixed Doubles Open and the women's Doubles Open 3 times each. The fastest of 3 in the mixed Doubles Open is 1:17:23 at Singapore 2026, a top-10% finish: 65th of 784 mixed teams. On the clock, that is 4:41 faster than the first of them, at Singapore National Stadium 2024, both times with CJ Foo.

Best finish, by category
Doubles Open · Mixed
1:17:23
Singapore 2026
Doubles Open · Women
1:23:08
Incheon 2025

Progress against the field

Penny Koo and CJ Foo have dropped 1:37 behind the field from Singapore National Stadium 2024 to Singapore 2026.

The clock says 4:41 faster, but the races themselves got 6:18 quicker for everyone.

Race by race, in the list below ↓
How this is worked out ⓘ

A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown.

Every race

7 races · 6 events

  1. Singapore
    3 Apr 2026
    Doubles Open · Mixed
    1:17:23 PB
    65/784
    Beat 92%
    ↑ 643 days after Singapore National Stadium 2024, with CJ Foo 1:37 worse than the field Faster on the clock, behind the field Why ↓

    4:41 faster on the clock looks better than it was: the race was 6:18 faster for everyone, which leaves this 1:37 behind the field.

    Compare these two →
  2. Bangkok 1
    20 Mar 2026
    Relay · Women
    1:27:51
    30/207
    Beat 86%
  3. Bangkok 1
    20 Mar 2026
    Doubles Open · Mixed
    1:21:13
    338/1445
    Beat 77%
  4. Incheon
    17 May 2025
    Doubles Open · Women
    1:23:08 PB
    78/226
    Beat 66%
  5. Singapore National Stadium
    29 Jun 2024
    Doubles Open · Mixed
    1:22:04
    53/401
    Beat 87%
  6. Singapore
    7 Oct 2023
    Doubles Open · Women
    1:27:54
    38/209
    Beat 82%
  7. Melbourne
    Date unknown
    Doubles Open · Women
    1:26:26
    633/1173
    Beat 46%

Personal bests, by station

4:15
Singapore National Stadium 2024
2:03
Singapore National Stadium 2024
4:00
Singapore National Stadium 2024
2:58
Singapore National Stadium 2024
4:44
Bangkok 1 2026
1:50
Bangkok 1 2026
2:54
Singapore 2023
2:56
Singapore 2023

Station by station, race by race

Doubles Open · Women Doubles Open · Mixed Faster is lower
1000m SkiErg
4:43 4:15
50m Sled Push
2:41 2:03
50m Sled Pull
4:56 4:00
80m Burpee Broad Jump
3:43 2:58
1000m Row
5:33 4:44
200m Farmers Carry
2:05 1:50
100m Sandbag Lunges
4:23 2:54
Wall Balls
4:33 2:56