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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Joon Ki Lee

Bib: 1266 •M •Age: 70

Clarksburg, MD

Shamrock Marathon logo
0:00
0:00
/ mi
MastersBQ
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Overall
#0 / 1949
Top 34%
Gender (Male)
#0 / 1153
Top 41%
Masters (Masters Men)
#0 / 398
Top 38%
Age Group (M70-74)
#0 / 4
Top 25%
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
27:52
3.11 mi
Rank: #758
Start → 5K
27:52 | 8:59/mi
10K
56:14
6.21 mi
Rank: #796 (-38)
5K → 10K
28:22 | 9:08/mi
15K
1:24:15
9.32 mi
Rank: #785 (+11)
10K → 15K
28:01 | 9:02/mi
20K
1:51:46
12.43 mi
Rank: #764 (+21)
15K → 20K
27:31 | 8:52/mi
Half
1:58:01
13.10 mi
Rank: #747 (+17)
20K → Half
6:15 | 9:19/mi
25K
2:20:52
15.53 mi
Rank: #747
Half → 25K
22:51 | 9:23/mi
30K
2:46:50
18.64 mi
Rank: #743 (+4)
25K → 30K
25:58 | 8:22/mi
35K
3:20:56
21.75 mi
Rank: #701 (+42)
30K → 35K
34:06 | 10:59/mi
25.2M
3:55:15
25.20 mi
Rank: #667 (+34)
35K → 25.2M
34:19 | 9:57/mi
Finish
4:04:46
26.22 mi
Rank: #665 (+2)
25.2M → Finish
9:31 | 9:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:58:01
Pace9:01 /mi
2nd Half
Distance13.12 mi
Time2:06:46
Pace9:40 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:06:0327:528:5927:52
8:59
-
10K
6.21 mi08:34:2556:149:0328:22
9:08
+0:09
15K
9.32 mi09:02:261:24:159:0328:01
9:02
-0:06
20K
12.43 mi09:29:571:51:469:0027:31
8:52
-0:10
Half
13.10 mi09:36:121:58:019:016:15
9:19
+0:27
25K
15.53 mi09:59:032:20:529:0522:51
9:23
+0:04
30K
18.64 mi10:25:012:46:508:5725:58
8:22
-1:01
35K
21.75 mi10:59:073:20:569:1534:06
10:59
+2:37
25.2M
25.20 mi11:33:263:55:159:2134:19
9:57
-1:02
Finish
26.22 mi11:42:574:04:469:219:31
9:21
-0:36

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. Green = fastest, yellow = moderate, red = slowest segments.

Fastest Pace

8:22 /mi

Average Pace

9:21 /mi

Slowest Pace

10:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Color indicates pace quality: green = fast pace, yellow = moderate, red = slow pace.

Time at Fast Pace

53:29

22% of race

Time at Moderate Pace

2:02:52

50% of race

Time at Slow Pace

1:08:25

28% of race

Average Pace: 9:20 /mi

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Fast pace (< avg)
Moderate pace (≈ avg)
Slow pace (> avg)

🎨Heatmap

Pace Heatmap

Visual intensity map of your pacing throughout the race. Green = fastest, yellow = moderate, red = slowest.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Fast
Moderate
Slow

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 mi08:06:0327:528:5927:52
8:59
#758
10K
6.21 mi08:34:2556:149:0328:22
9:08
#796
15K
9.32 mi09:02:261:24:159:0328:01
9:02
#785
20K
12.43 mi09:29:571:51:469:0027:31
8:52
#764
Half
13.10 mi09:36:121:58:019:016:15
9:19
#747
25K
15.53 mi09:59:032:20:529:0522:51
9:23
#747
30K
18.64 mi10:25:012:46:508:5725:58
8:22
#743
35K
21.75 mi10:59:073:20:569:1534:06
10:59
#701
25.2M
25.20 mi11:33:263:55:159:2134:19
9:57
#667
Finish
26.22 mi11:42:574:04:469:219:31
9:21
#665
Fast pace
Moderate pace
Slow pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi7585432779(Top 40%)558(Top 48%)2(Top 50%)
10K6.21 mi3.10 mi796-38569-262845(Top 43%)598(Top 52%)2(Top 50%)
15K9.32 mi3.11 mi785+11562+72779(Top 40%)558(Top 48%)2(Top 50%)
20K12.43 mi3.11 mi764+21547+152705(Top 36%)517(Top 45%)1(Top 25%)
Half13.10 mi0.67 mi747+17539+81+1604(Top 31%)448(Top 39%)1(Top 25%)
25K15.53 mi2.43 mi747536+31731(Top 38%)526(Top 46%)2(Top 50%)
30K18.64 mi3.11 mi743+4535+12-1717(Top 37%)505(Top 44%)2(Top 50%)
35K21.75 mi3.11 mi701+42500+352663(Top 34%)444(Top 39%)2(Top 50%)
25.2M25.20 mi3.45 mi667+34470+301+1611(Top 31%)399(Top 35%)1(Top 25%)
Finish26.22 mi1.02 mi665+2468+21705(Top 36%)449(Top 39%)1(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×1
+26ft-31ft

Overall

779

Males

558

M70-74

2

5K→10K

3.1 - 6.2 mi

Top 43%
×2
+38ft-17ft

Overall

845

Males

598

M70-74

2

10K→15K

6.2 - 9.3 mi

Top 40%
×2
+26ft-44ft

Overall

779

Males

558

M70-74

2

15K→20K

9.3 - 12.4 mi

Top 36%
×1
+35ft-22ft

Overall

705

Males

517

M70-74

1

20K→Half

12.4 - 13.1 mi

Top 31%
×1
+7ft-13ft

Overall

604

Males

448

M70-74

1

Half→25K

13.1 - 15.5 mi

Top 38%
×2
+48ft-19ft

Overall

731

Males

526

M70-74

2

25K→30K

15.5 - 18.6 mi

Top 37%
×2
+38ft-52ft

Overall

717

Males

505

M70-74

2

30K→35K

18.6 - 21.8 mi

Top 34%
×2
+39ft-39ft

Overall

663

Males

444

M70-74

2

35K→25.2M

21.8 - 25.2 mi

Top 31%
×3
+57ft-58ft

Overall

611

Males

399

M70-74

1

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×1
+17ft-12ft

Overall

705

Males

449

M70-74

1

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
208
Passed By
115
Net Change
+93
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#758
5K → 10K846-38#758#796
10K → 15K2110+11#796#785
15K → 20K254+21#785#764
20K → Half181+17#764#747
Half → 25K15150#747#747
25K → 30K1713+4#747#743
30K → 35K5917+42#743#701
35K → 25.2M428+34#701#667
25.2M → Finish31+2#667#665
TOTALS208115+93
📊

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

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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