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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Steven Kooy

Bib: 2176 •M •Age: 58

California, MD

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Age Group (M55-59)
#0 / 61
Race Day Weather
71°/61°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
34:08
3.11 mi
Rank: #1541
Start → 5K
34:08 | 11:00/mi
10K
1:08:40
6.21 mi
Rank: #1524 (+17)
5K → 10K
34:32 | 11:07/mi
15K
1:42:59
9.32 mi
Rank: #1505 (+19)
10K → 15K
34:19 | 11:03/mi
20K
2:18:58
12.43 mi
Rank: #1533 (-28)
15K → 20K
35:59 | 11:35/mi
Half
2:27:58
13.10 mi
Rank: #1542 (-9)
20K → Half
9:00 | 13:25/mi
25K
3:00:29
15.53 mi
Rank: #1599 (-57)
Half → 25K
32:31 | 13:21/mi
30K
3:39:53
18.64 mi
Rank: #1638 (-39)
25K → 30K
39:24 | 12:41/mi
35K
4:33:47
21.75 mi
Rank: #1676 (-38)
30K → 35K
53:54 | 17:21/mi
25.2M
5:22:03
25.20 mi
Rank: #1663 (+13)
35K → 25.2M
48:16 | 14:00/mi
Finish
5:34:52
26.22 mi
Rank: #1662 (+1)
25.2M → Finish
12:49 | 12:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:27:58
Pace11:18 /mi
2nd Half
Distance13.12 mi
Time3:06:55
Pace14:15 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:18:1834:0811:0034:08
11:00
-
10K
6.21 mi08:52:501:08:4011:0434:32
11:07
+0:07
15K
9.32 mi09:27:091:42:5911:0334:19
11:03
-0:04
20K
12.43 mi10:03:082:18:5811:1135:59
11:35
+0:32
Half
13.10 mi10:12:082:27:5811:189:00
13:25
+1:50
25K
15.53 mi10:44:393:00:2911:3832:31
13:21
-0:04
30K
18.64 mi11:24:033:39:5311:4839:24
12:41
-0:40
35K
21.75 mi12:17:574:33:4712:3653:54
17:21
+4:40
25.2M
25.20 mi13:06:135:22:0312:4748:16
14:00
-3:21
Finish
26.22 mi13:19:025:34:5212:4712:49
12:35
-1:25

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

11:00 /mi

Average Pace

12:47 /mi

Slowest Pace

17:21 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:18:58

41% of race

Time at Steady Pace

1:33:44

28% of race

Time at Slower Pace

1:42:10

31% of race

Average Pace: 12:46 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:18:1834:0811:0034:08
11:00
#1541
10K
6.21 mi08:52:501:08:4011:0434:32
11:07
#1524
15K
9.32 mi09:27:091:42:5911:0334:19
11:03
#1505
20K
12.43 mi10:03:082:18:5811:1135:59
11:35
#1533
Half
13.10 mi10:12:082:27:5811:189:00
13:25
#1542
25K
15.53 mi10:44:393:00:2911:3832:31
13:21
#1599
30K
18.64 mi11:24:033:39:5311:4839:24
12:41
#1638
35K
21.75 mi12:17:574:33:4712:3653:54
17:21
#1676
25.2M
25.20 mi13:06:135:22:0312:4748:16
14:00
#1663
Finish
26.22 mi13:19:025:34:5212:4712:49
12:35
#1662
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi1541976511495(Top 77%)962(Top 83%)45(Top 74%)
10K6.21 mi3.10 mi1524+17972+4511515(Top 78%)969(Top 84%)48(Top 79%)
15K9.32 mi3.11 mi1505+19963+949+21495(Top 77%)962(Top 83%)45(Top 74%)
20K12.43 mi3.11 mi1533-28980-17491589(Top 82%)1004(Top 87%)51(Top 84%)
Half13.10 mi0.67 mi1542-9984-451-21739(Top 89%)1066(Top 92%)55(Top 90%)
25K15.53 mi2.43 mi1599-571011-2750+11677(Top 86%)1029(Top 89%)50(Top 82%)
30K18.64 mi3.11 mi1638-391020-949+11740(Top 89%)1053(Top 91%)52(Top 85%)
35K21.75 mi3.11 mi1676-381037-1750-11780(Top 91%)1060(Top 92%)54(Top 89%)
25.2M25.20 mi3.45 mi1663+131025+1249+11606(Top 82%)961(Top 83%)45(Top 74%)
Finish26.22 mi1.02 mi1662+11025491615(Top 83%)968(Top 84%)44(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×1
+26ft-31ft

Overall

1495

Males

962

M55-59

45

5K→10K

3.1 - 6.2 mi

Top 78%
×2
+38ft-17ft

Overall

1515

Males

969

M55-59

48

10K→15K

6.2 - 9.3 mi

Top 77%
×2
+26ft-44ft

Overall

1495

Males

962

M55-59

45

15K→20K

9.3 - 12.4 mi

Top 82%
×1
+35ft-22ft

Overall

1589

Males

1004

M55-59

51

20K→Half

12.4 - 13.1 mi

Top 89%
×1
+7ft-13ft

Overall

1739

Males

1066

M55-59

55

Half→25K

13.1 - 15.5 mi

Top 86%
×2
+48ft-19ft

Overall

1677

Males

1029

M55-59

50

25K→30K

15.5 - 18.6 mi

Top 89%
×2
+38ft-52ft

Overall

1740

Males

1053

M55-59

52

30K→35K

18.6 - 21.8 mi

Top 91%
×2
+39ft-39ft

Overall

1780

Males

1060

M55-59

54

35K→25.2M

21.8 - 25.2 mi

Top 82%
×3
+57ft-58ft

Overall

1606

Males

961

M55-59

45

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×1
+17ft-12ft

Overall

1615

Males

968

M55-59

44

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
139
Passed By
260
Net Change
-121
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1541
5K → 10K4326+17#1541#1524
10K → 15K3314+19#1524#1505
15K → 20K1341-28#1505#1533
20K → Half716-9#1533#1542
Half → 25K764-57#1542#1599
25K → 30K948-39#1599#1638
30K → 35K745-38#1638#1676
35K → 25.2M196+13#1676#1663
25.2M → Finish10+1#1663#1662
TOTALS139260-121
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
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