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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Michael Schaefer

Bib: 189 •M •Age: 23

Norfolk, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 1%
Gender (Male)
#0 / 1153
Top 2%
Age Group (M20-24)
Official
#0 / 127
Calculated (M20-24)
#0 / 127
Top 4%
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
21:09
3.11 mi
Rank: #74
Start → 5K
21:09 | 6:49/mi
10K
42:38
6.21 mi
Rank: #72 (+2)
5K → 10K
21:29 | 6:55/mi
15K
1:03:52
9.32 mi
Rank: #70 (+2)
10K → 15K
21:14 | 6:51/mi
20K
1:24:59
12.43 mi
Rank: #63 (+7)
15K → 20K
21:07 | 6:48/mi
Half
1:29:56
13.10 mi
Rank: #65 (-2)
20K → Half
4:57 | 7:23/mi
25K
1:46:50
15.53 mi
Rank: #59 (+6)
Half → 25K
16:54 | 6:57/mi
30K
2:05:37
18.64 mi
Rank: #55 (+4)
25K → 30K
18:47 | 6:03/mi
35K
2:28:29
21.75 mi
Rank: #37 (+18)
30K → 35K
22:52 | 7:22/mi
25.2M
2:50:10
25.20 mi
Rank: #24 (+13)
35K → 25.2M
21:41 | 6:17/mi
Finish
2:56:12
26.22 mi
Rank: #23 (+1)
25.2M → Finish
6:02 | 5:56/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.10 mi
Time1:29:56
Pace6:52 /mi
2nd Half✓ Faster
Distance13.12 mi
Time1:26:17
Pace6:35 /mi
📊Negative Split: 4.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:51:1921:096:4921:09
6:49
-
10K
6.21 mi08:12:4842:386:5221:29
6:55
+0:06
15K
9.32 mi08:34:021:03:526:5221:14
6:51
-0:04
20K
12.43 mi08:55:091:24:596:5121:07
6:48
-0:03
Half
13.10 mi09:00:061:29:566:524:57
7:23
+0:35
25K
15.53 mi09:17:001:46:506:5316:54
6:57
-0:26
30K
18.64 mi09:35:472:05:376:4518:47
6:03
-0:54
35K
21.75 mi09:58:392:28:296:5022:52
7:22
+1:19
25.2M
25.20 mi10:20:202:50:106:4621:41
6:17
-1:05
Finish
26.22 mi10:26:222:56:126:446:02
5:56
-0:21

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

5:56 /mi

Average Pace

6:44 /mi

Slowest Pace

7:23 /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

46:30

26% of race

Time at Moderate Pace

1:41:53

58% of race

Time at Slow Pace

27:49

16% of race

Average Pace: 6:43 /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 mi07:51:1921:096:4921:09
6:49
#74
10K
6.21 mi08:12:4842:386:5221:29
6:55
#72
15K
9.32 mi08:34:021:03:526:5221:14
6:51
#70
20K
12.43 mi08:55:091:24:596:5121:07
6:48
#63
Half
13.10 mi09:00:061:29:566:524:57
7:23
#65
25K
15.53 mi09:17:001:46:506:5316:54
6:57
#59
30K
18.64 mi09:35:472:05:376:4518:47
6:03
#55
35K
21.75 mi09:58:392:28:296:5022:52
7:22
#37
25.2M
25.20 mi10:20:202:50:106:4621:41
6:17
#24
Finish
26.22 mi10:26:222:56:126:446:02
5:56
#23
Fast pace
Moderate pace
Slow pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-24Seg. OverallSeg. MalesSeg. M20-24
5K3.11 mi3.11 mi7465873(Top 4%)67(Top 6%)8(Top 6%)
10K6.21 mi3.10 mi72+263+2880(Top 4%)69(Top 6%)9(Top 7%)
15K9.32 mi3.11 mi70+262+1873(Top 4%)67(Top 6%)8(Top 6%)
20K12.43 mi3.11 mi63+757+5864(Top 3%)59(Top 5%)7(Top 6%)
Half13.10 mi0.67 mi65-259-2876(Top 4%)70(Top 6%)9(Top 7%)
25K15.53 mi2.43 mi59+653+67+151(Top 3%)47(Top 4%)7(Top 6%)
30K18.64 mi3.11 mi55+450+3743(Top 2%)39(Top 3%)5(Top 4%)
35K21.75 mi3.11 mi37+1833+176+118(Top 0.9%)17(Top 1%)3(Top 2%)
25.2M25.20 mi3.45 mi24+1322+115+14(Top 0.2%)3(Top 0.3%)2(Top 2%)
Finish26.22 mi1.02 mi23+121+154(Top 0.2%)4(Top 0.3%)3(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×1
+26ft-31ft

Overall

73

Males

67

M20-24

8

5K→10K

3.1 - 6.2 mi

Top 4%
×2
+38ft-17ft

Overall

80

Males

69

M20-24

9

10K→15K

6.2 - 9.3 mi

Top 4%
×2
+26ft-44ft

Overall

73

Males

67

M20-24

8

15K→20K

9.3 - 12.4 mi

Top 3%
×1
+35ft-22ft

Overall

64

Males

59

M20-24

7

20K→Half

12.4 - 13.1 mi

Top 4%
×1
+7ft-13ft

Overall

76

Males

70

M20-24

9

Half→25K

13.1 - 15.5 mi

Top 3%
×2
+48ft-19ft

Overall

51

Males

47

M20-24

7

25K→30K

15.5 - 18.6 mi

Top 2%
×2
+38ft-52ft

Overall

43

Males

39

M20-24

5

30K→35K

18.6 - 21.8 mi

Top 0.9%
×2
+39ft-39ft

Overall

18

Males

17

M20-24

3

35K→25.2M

21.8 - 25.2 mi

Top 0.2%
×3
+57ft-58ft

Overall

4

Males

3

M20-24

2

25.2M→Finish

25.2 - 26.2 mi

Top 0.2%
×1
+17ft-12ft

Overall

4

Males

4

M20-24

3

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
67
Passed By
16
Net Change
+51
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#74
5K → 10K86+2#74#72
10K → 15K64+2#72#70
15K → 20K92+7#70#63
20K → Half13-2#63#65
Half → 25K71+6#65#59
25K → 30K40+4#59#55
30K → 35K180+18#55#37
35K → 25.2M130+13#37#24
25.2M → Finish10+1#24#23
TOTALS6716+51
📊

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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